1951a39d68df598db08dfced8b4707755864a0492Ying Wang// SGI's rope class implementation -*- C++ -*- 2951a39d68df598db08dfced8b4707755864a0492Ying Wang 3951a39d68df598db08dfced8b4707755864a0492Ying Wang// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 4951a39d68df598db08dfced8b4707755864a0492Ying Wang// Free Software Foundation, Inc. 5951a39d68df598db08dfced8b4707755864a0492Ying Wang// 6951a39d68df598db08dfced8b4707755864a0492Ying Wang// This file is part of the GNU ISO C++ Library. This library is free 7951a39d68df598db08dfced8b4707755864a0492Ying Wang// software; you can redistribute it and/or modify it under the 8951a39d68df598db08dfced8b4707755864a0492Ying Wang// terms of the GNU General Public License as published by the 9951a39d68df598db08dfced8b4707755864a0492Ying Wang// Free Software Foundation; either version 3, or (at your option) 10951a39d68df598db08dfced8b4707755864a0492Ying Wang// any later version. 11951a39d68df598db08dfced8b4707755864a0492Ying Wang 12951a39d68df598db08dfced8b4707755864a0492Ying Wang// This library is distributed in the hope that it will be useful, 13951a39d68df598db08dfced8b4707755864a0492Ying Wang// but WITHOUT ANY WARRANTY; without even the implied warranty of 14951a39d68df598db08dfced8b4707755864a0492Ying Wang// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15951a39d68df598db08dfced8b4707755864a0492Ying Wang// GNU General Public License for more details. 16951a39d68df598db08dfced8b4707755864a0492Ying Wang 17951a39d68df598db08dfced8b4707755864a0492Ying Wang// Under Section 7 of GPL version 3, you are granted additional 18951a39d68df598db08dfced8b4707755864a0492Ying Wang// permissions described in the GCC Runtime Library Exception, version 19951a39d68df598db08dfced8b4707755864a0492Ying Wang// 3.1, as published by the Free Software Foundation. 20951a39d68df598db08dfced8b4707755864a0492Ying Wang 21951a39d68df598db08dfced8b4707755864a0492Ying Wang// You should have received a copy of the GNU General Public License and 22951a39d68df598db08dfced8b4707755864a0492Ying Wang// a copy of the GCC Runtime Library Exception along with this program; 23951a39d68df598db08dfced8b4707755864a0492Ying Wang// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24951a39d68df598db08dfced8b4707755864a0492Ying Wang// <http://www.gnu.org/licenses/>. 25951a39d68df598db08dfced8b4707755864a0492Ying Wang 26951a39d68df598db08dfced8b4707755864a0492Ying Wang/* 27951a39d68df598db08dfced8b4707755864a0492Ying Wang * Copyright (c) 1997 28951a39d68df598db08dfced8b4707755864a0492Ying Wang * Silicon Graphics Computer Systems, Inc. 29951a39d68df598db08dfced8b4707755864a0492Ying Wang * 30951a39d68df598db08dfced8b4707755864a0492Ying Wang * Permission to use, copy, modify, distribute and sell this software 31951a39d68df598db08dfced8b4707755864a0492Ying Wang * and its documentation for any purpose is hereby granted without fee, 32951a39d68df598db08dfced8b4707755864a0492Ying Wang * provided that the above copyright notice appear in all copies and 33951a39d68df598db08dfced8b4707755864a0492Ying Wang * that both that copyright notice and this permission notice appear 34951a39d68df598db08dfced8b4707755864a0492Ying Wang * in supporting documentation. Silicon Graphics makes no 35951a39d68df598db08dfced8b4707755864a0492Ying Wang * representations about the suitability of this software for any 36951a39d68df598db08dfced8b4707755864a0492Ying Wang * purpose. It is provided "as is" without express or implied warranty. 37951a39d68df598db08dfced8b4707755864a0492Ying Wang */ 38951a39d68df598db08dfced8b4707755864a0492Ying Wang 39951a39d68df598db08dfced8b4707755864a0492Ying Wang/** @file ropeimpl.h 40951a39d68df598db08dfced8b4707755864a0492Ying Wang * This is an internal header file, included by other library headers. 41951a39d68df598db08dfced8b4707755864a0492Ying Wang * You should not attempt to use it directly. 42951a39d68df598db08dfced8b4707755864a0492Ying Wang */ 43951a39d68df598db08dfced8b4707755864a0492Ying Wang 44951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <cstdio> 45951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <ostream> 46951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <bits/functexcept.h> 47951a39d68df598db08dfced8b4707755864a0492Ying Wang 48951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <ext/algorithm> // For copy_n and lexicographical_compare_3way 49951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <ext/memory> // For uninitialized_copy_n 50951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <ext/numeric> // For power 51951a39d68df598db08dfced8b4707755864a0492Ying Wang 52951a39d68df598db08dfced8b4707755864a0492Ying Wang_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 53951a39d68df598db08dfced8b4707755864a0492Ying Wang 54951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::size_t; 55951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::printf; 56951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::basic_ostream; 57951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::__throw_length_error; 58951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::_Destroy; 59951a39d68df598db08dfced8b4707755864a0492Ying Wang using std::uninitialized_fill_n; 60951a39d68df598db08dfced8b4707755864a0492Ying Wang 61951a39d68df598db08dfced8b4707755864a0492Ying Wang // Set buf_start, buf_end, and buf_ptr appropriately, filling tmp_buf 62951a39d68df598db08dfced8b4707755864a0492Ying Wang // if necessary. Assumes _M_path_end[leaf_index] and leaf_pos are correct. 63951a39d68df598db08dfced8b4707755864a0492Ying Wang // Results in a valid buf_ptr if the iterator can be legitimately 64951a39d68df598db08dfced8b4707755864a0492Ying Wang // dereferenced. 65951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 66951a39d68df598db08dfced8b4707755864a0492Ying Wang void 67951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator_base<_CharT, _Alloc>:: 68951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setbuf(_Rope_iterator_base<_CharT, _Alloc>& __x) 69951a39d68df598db08dfced8b4707755864a0492Ying Wang { 70951a39d68df598db08dfced8b4707755864a0492Ying Wang const _RopeRep* __leaf = __x._M_path_end[__x._M_leaf_index]; 71951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __leaf_pos = __x._M_leaf_pos; 72951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __pos = __x._M_current_pos; 73951a39d68df598db08dfced8b4707755864a0492Ying Wang 74951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__leaf->_M_tag) 75951a39d68df598db08dfced8b4707755864a0492Ying Wang { 76951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 77951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_start = ((_Rope_RopeLeaf<_CharT, _Alloc>*)__leaf)->_M_data; 78951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_ptr = __x._M_buf_start + (__pos - __leaf_pos); 79951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_end = __x._M_buf_start + __leaf->_M_size; 80951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 81951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 82951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 83951a39d68df598db08dfced8b4707755864a0492Ying Wang { 84951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __len = _S_iterator_buf_len; 85951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __buf_start_pos = __leaf_pos; 86951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __leaf_end = __leaf_pos + __leaf->_M_size; 87951a39d68df598db08dfced8b4707755864a0492Ying Wang char_producer<_CharT>* __fn = ((_Rope_RopeFunction<_CharT, 88951a39d68df598db08dfced8b4707755864a0492Ying Wang _Alloc>*)__leaf)->_M_fn; 89951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__buf_start_pos + __len <= __pos) 90951a39d68df598db08dfced8b4707755864a0492Ying Wang { 91951a39d68df598db08dfced8b4707755864a0492Ying Wang __buf_start_pos = __pos - __len / 4; 92951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__buf_start_pos + __len > __leaf_end) 93951a39d68df598db08dfced8b4707755864a0492Ying Wang __buf_start_pos = __leaf_end - __len; 94951a39d68df598db08dfced8b4707755864a0492Ying Wang } 95951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__buf_start_pos + __len > __leaf_end) 96951a39d68df598db08dfced8b4707755864a0492Ying Wang __len = __leaf_end - __buf_start_pos; 97951a39d68df598db08dfced8b4707755864a0492Ying Wang (*__fn)(__buf_start_pos - __leaf_pos, __len, __x._M_tmp_buf); 98951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_ptr = __x._M_tmp_buf + (__pos - __buf_start_pos); 99951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_start = __x._M_tmp_buf; 100951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_end = __x._M_tmp_buf + __len; 101951a39d68df598db08dfced8b4707755864a0492Ying Wang } 102951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 103951a39d68df598db08dfced8b4707755864a0492Ying Wang default: 104951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 105951a39d68df598db08dfced8b4707755864a0492Ying Wang } 106951a39d68df598db08dfced8b4707755864a0492Ying Wang } 107951a39d68df598db08dfced8b4707755864a0492Ying Wang 108951a39d68df598db08dfced8b4707755864a0492Ying Wang // Set path and buffer inside a rope iterator. We assume that 109951a39d68df598db08dfced8b4707755864a0492Ying Wang // pos and root are already set. 110951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 111951a39d68df598db08dfced8b4707755864a0492Ying Wang void 112951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator_base<_CharT, _Alloc>:: 113951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setcache(_Rope_iterator_base<_CharT, _Alloc>& __x) 114951a39d68df598db08dfced8b4707755864a0492Ying Wang { 115951a39d68df598db08dfced8b4707755864a0492Ying Wang const _RopeRep* __path[int(__detail::_S_max_rope_depth) + 1]; 116951a39d68df598db08dfced8b4707755864a0492Ying Wang const _RopeRep* __curr_rope; 117951a39d68df598db08dfced8b4707755864a0492Ying Wang int __curr_depth = -1; /* index into path */ 118951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __curr_start_pos = 0; 119951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __pos = __x._M_current_pos; 120951a39d68df598db08dfced8b4707755864a0492Ying Wang unsigned char __dirns = 0; // Bit vector marking right turns in the path 121951a39d68df598db08dfced8b4707755864a0492Ying Wang 122951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__pos >= __x._M_root->_M_size) 123951a39d68df598db08dfced8b4707755864a0492Ying Wang { 124951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_ptr = 0; 125951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 126951a39d68df598db08dfced8b4707755864a0492Ying Wang } 127951a39d68df598db08dfced8b4707755864a0492Ying Wang __curr_rope = __x._M_root; 128951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __curr_rope->_M_c_string) 129951a39d68df598db08dfced8b4707755864a0492Ying Wang { 130951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Treat the root as a leaf. */ 131951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_start = __curr_rope->_M_c_string; 132951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_end = __curr_rope->_M_c_string + __curr_rope->_M_size; 133951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_buf_ptr = __curr_rope->_M_c_string + __pos; 134951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_end[0] = __curr_rope; 135951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_index = 0; 136951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_pos = 0; 137951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 138951a39d68df598db08dfced8b4707755864a0492Ying Wang } 139951a39d68df598db08dfced8b4707755864a0492Ying Wang for(;;) 140951a39d68df598db08dfced8b4707755864a0492Ying Wang { 141951a39d68df598db08dfced8b4707755864a0492Ying Wang ++__curr_depth; 142951a39d68df598db08dfced8b4707755864a0492Ying Wang __path[__curr_depth] = __curr_rope; 143951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__curr_rope->_M_tag) 144951a39d68df598db08dfced8b4707755864a0492Ying Wang { 145951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 146951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 147951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 148951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_pos = __curr_start_pos; 149951a39d68df598db08dfced8b4707755864a0492Ying Wang goto done; 150951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 151951a39d68df598db08dfced8b4707755864a0492Ying Wang { 152951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeConcatenation<_CharT, _Alloc>* __c = 153951a39d68df598db08dfced8b4707755864a0492Ying Wang (_Rope_RopeConcatenation<_CharT, _Alloc>*)__curr_rope; 154951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 155951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len = __left->_M_size; 156951a39d68df598db08dfced8b4707755864a0492Ying Wang 157951a39d68df598db08dfced8b4707755864a0492Ying Wang __dirns <<= 1; 158951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__pos >= __curr_start_pos + __left_len) 159951a39d68df598db08dfced8b4707755864a0492Ying Wang { 160951a39d68df598db08dfced8b4707755864a0492Ying Wang __dirns |= 1; 161951a39d68df598db08dfced8b4707755864a0492Ying Wang __curr_rope = __c->_M_right; 162951a39d68df598db08dfced8b4707755864a0492Ying Wang __curr_start_pos += __left_len; 163951a39d68df598db08dfced8b4707755864a0492Ying Wang } 164951a39d68df598db08dfced8b4707755864a0492Ying Wang else 165951a39d68df598db08dfced8b4707755864a0492Ying Wang __curr_rope = __left; 166951a39d68df598db08dfced8b4707755864a0492Ying Wang } 167951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 168951a39d68df598db08dfced8b4707755864a0492Ying Wang } 169951a39d68df598db08dfced8b4707755864a0492Ying Wang } 170951a39d68df598db08dfced8b4707755864a0492Ying Wang done: 171951a39d68df598db08dfced8b4707755864a0492Ying Wang // Copy last section of path into _M_path_end. 172951a39d68df598db08dfced8b4707755864a0492Ying Wang { 173951a39d68df598db08dfced8b4707755864a0492Ying Wang int __i = -1; 174951a39d68df598db08dfced8b4707755864a0492Ying Wang int __j = __curr_depth + 1 - int(_S_path_cache_len); 175951a39d68df598db08dfced8b4707755864a0492Ying Wang 176951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__j < 0) __j = 0; 177951a39d68df598db08dfced8b4707755864a0492Ying Wang while (__j <= __curr_depth) 178951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_end[++__i] = __path[__j++]; 179951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_index = __i; 180951a39d68df598db08dfced8b4707755864a0492Ying Wang } 181951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_directions = __dirns; 182951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setbuf(__x); 183951a39d68df598db08dfced8b4707755864a0492Ying Wang } 184951a39d68df598db08dfced8b4707755864a0492Ying Wang 185951a39d68df598db08dfced8b4707755864a0492Ying Wang // Specialized version of the above. Assumes that 186951a39d68df598db08dfced8b4707755864a0492Ying Wang // the path cache is valid for the previous position. 187951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 188951a39d68df598db08dfced8b4707755864a0492Ying Wang void 189951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator_base<_CharT, _Alloc>:: 190951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setcache_for_incr(_Rope_iterator_base<_CharT, _Alloc>& __x) 191951a39d68df598db08dfced8b4707755864a0492Ying Wang { 192951a39d68df598db08dfced8b4707755864a0492Ying Wang int __current_index = __x._M_leaf_index; 193951a39d68df598db08dfced8b4707755864a0492Ying Wang const _RopeRep* __current_node = __x._M_path_end[__current_index]; 194951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __len = __current_node->_M_size; 195951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __node_start_pos = __x._M_leaf_pos; 196951a39d68df598db08dfced8b4707755864a0492Ying Wang unsigned char __dirns = __x._M_path_directions; 197951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeConcatenation<_CharT, _Alloc>* __c; 198951a39d68df598db08dfced8b4707755864a0492Ying Wang 199951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__x._M_current_pos - __node_start_pos < __len) 200951a39d68df598db08dfced8b4707755864a0492Ying Wang { 201951a39d68df598db08dfced8b4707755864a0492Ying Wang /* More stuff in this leaf, we just didn't cache it. */ 202951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setbuf(__x); 203951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 204951a39d68df598db08dfced8b4707755864a0492Ying Wang } 205951a39d68df598db08dfced8b4707755864a0492Ying Wang // node_start_pos is starting position of last_node. 206951a39d68df598db08dfced8b4707755864a0492Ying Wang while (--__current_index >= 0) 207951a39d68df598db08dfced8b4707755864a0492Ying Wang { 208951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!(__dirns & 1) /* Path turned left */) 209951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 210951a39d68df598db08dfced8b4707755864a0492Ying Wang __current_node = __x._M_path_end[__current_index]; 211951a39d68df598db08dfced8b4707755864a0492Ying Wang __c = (_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node; 212951a39d68df598db08dfced8b4707755864a0492Ying Wang // Otherwise we were in the right child. Thus we should pop 213951a39d68df598db08dfced8b4707755864a0492Ying Wang // the concatenation node. 214951a39d68df598db08dfced8b4707755864a0492Ying Wang __node_start_pos -= __c->_M_left->_M_size; 215951a39d68df598db08dfced8b4707755864a0492Ying Wang __dirns >>= 1; 216951a39d68df598db08dfced8b4707755864a0492Ying Wang } 217951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__current_index < 0) 218951a39d68df598db08dfced8b4707755864a0492Ying Wang { 219951a39d68df598db08dfced8b4707755864a0492Ying Wang // We underflowed the cache. Punt. 220951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setcache(__x); 221951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 222951a39d68df598db08dfced8b4707755864a0492Ying Wang } 223951a39d68df598db08dfced8b4707755864a0492Ying Wang __current_node = __x._M_path_end[__current_index]; 224951a39d68df598db08dfced8b4707755864a0492Ying Wang __c = (_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node; 225951a39d68df598db08dfced8b4707755864a0492Ying Wang // current_node is a concatenation node. We are positioned on the first 226951a39d68df598db08dfced8b4707755864a0492Ying Wang // character in its right child. 227951a39d68df598db08dfced8b4707755864a0492Ying Wang // node_start_pos is starting position of current_node. 228951a39d68df598db08dfced8b4707755864a0492Ying Wang __node_start_pos += __c->_M_left->_M_size; 229951a39d68df598db08dfced8b4707755864a0492Ying Wang __current_node = __c->_M_right; 230951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_end[++__current_index] = __current_node; 231951a39d68df598db08dfced8b4707755864a0492Ying Wang __dirns |= 1; 232951a39d68df598db08dfced8b4707755864a0492Ying Wang while (__detail::_S_concat == __current_node->_M_tag) 233951a39d68df598db08dfced8b4707755864a0492Ying Wang { 234951a39d68df598db08dfced8b4707755864a0492Ying Wang ++__current_index; 235951a39d68df598db08dfced8b4707755864a0492Ying Wang if (int(_S_path_cache_len) == __current_index) 236951a39d68df598db08dfced8b4707755864a0492Ying Wang { 237951a39d68df598db08dfced8b4707755864a0492Ying Wang int __i; 238951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i < int(_S_path_cache_len) - 1; __i++) 239951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_end[__i] = __x._M_path_end[__i+1]; 240951a39d68df598db08dfced8b4707755864a0492Ying Wang --__current_index; 241951a39d68df598db08dfced8b4707755864a0492Ying Wang } 242951a39d68df598db08dfced8b4707755864a0492Ying Wang __current_node = 243951a39d68df598db08dfced8b4707755864a0492Ying Wang ((_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node)->_M_left; 244951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_end[__current_index] = __current_node; 245951a39d68df598db08dfced8b4707755864a0492Ying Wang __dirns <<= 1; 246951a39d68df598db08dfced8b4707755864a0492Ying Wang // node_start_pos is unchanged. 247951a39d68df598db08dfced8b4707755864a0492Ying Wang } 248951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_index = __current_index; 249951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_leaf_pos = __node_start_pos; 250951a39d68df598db08dfced8b4707755864a0492Ying Wang __x._M_path_directions = __dirns; 251951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setbuf(__x); 252951a39d68df598db08dfced8b4707755864a0492Ying Wang } 253951a39d68df598db08dfced8b4707755864a0492Ying Wang 254951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 255951a39d68df598db08dfced8b4707755864a0492Ying Wang void 256951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator_base<_CharT, _Alloc>:: 257951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_incr(size_t __n) 258951a39d68df598db08dfced8b4707755864a0492Ying Wang { 259951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_current_pos += __n; 260951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != _M_buf_ptr) 261951a39d68df598db08dfced8b4707755864a0492Ying Wang { 262951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __chars_left = _M_buf_end - _M_buf_ptr; 263951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__chars_left > __n) 264951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr += __n; 265951a39d68df598db08dfced8b4707755864a0492Ying Wang else if (__chars_left == __n) 266951a39d68df598db08dfced8b4707755864a0492Ying Wang { 267951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr += __n; 268951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_setcache_for_incr(*this); 269951a39d68df598db08dfced8b4707755864a0492Ying Wang } 270951a39d68df598db08dfced8b4707755864a0492Ying Wang else 271951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr = 0; 272951a39d68df598db08dfced8b4707755864a0492Ying Wang } 273951a39d68df598db08dfced8b4707755864a0492Ying Wang } 274951a39d68df598db08dfced8b4707755864a0492Ying Wang 275951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 276951a39d68df598db08dfced8b4707755864a0492Ying Wang void 277951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator_base<_CharT, _Alloc>:: 278951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_decr(size_t __n) 279951a39d68df598db08dfced8b4707755864a0492Ying Wang { 280951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != _M_buf_ptr) 281951a39d68df598db08dfced8b4707755864a0492Ying Wang { 282951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __chars_left = _M_buf_ptr - _M_buf_start; 283951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__chars_left >= __n) 284951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr -= __n; 285951a39d68df598db08dfced8b4707755864a0492Ying Wang else 286951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr = 0; 287951a39d68df598db08dfced8b4707755864a0492Ying Wang } 288951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_current_pos -= __n; 289951a39d68df598db08dfced8b4707755864a0492Ying Wang } 290951a39d68df598db08dfced8b4707755864a0492Ying Wang 291951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 292951a39d68df598db08dfced8b4707755864a0492Ying Wang void 293951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<_CharT, _Alloc>:: 294951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_check() 295951a39d68df598db08dfced8b4707755864a0492Ying Wang { 296951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_M_root_rope->_M_tree_ptr != this->_M_root) 297951a39d68df598db08dfced8b4707755864a0492Ying Wang { 298951a39d68df598db08dfced8b4707755864a0492Ying Wang // _Rope was modified. Get things fixed up. 299951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::_S_unref(this->_M_root); 300951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_root = _M_root_rope->_M_tree_ptr; 301951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::_S_ref(this->_M_root); 302951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_buf_ptr = 0; 303951a39d68df598db08dfced8b4707755864a0492Ying Wang } 304951a39d68df598db08dfced8b4707755864a0492Ying Wang } 305951a39d68df598db08dfced8b4707755864a0492Ying Wang 306951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 307951a39d68df598db08dfced8b4707755864a0492Ying Wang inline 308951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_const_iterator<_CharT, _Alloc>:: 309951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_const_iterator(const _Rope_iterator<_CharT, _Alloc>& __x) 310951a39d68df598db08dfced8b4707755864a0492Ying Wang : _Rope_iterator_base<_CharT, _Alloc>(__x) 311951a39d68df598db08dfced8b4707755864a0492Ying Wang { } 312951a39d68df598db08dfced8b4707755864a0492Ying Wang 313951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 314951a39d68df598db08dfced8b4707755864a0492Ying Wang inline 315951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<_CharT, _Alloc>:: 316951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator(rope<_CharT, _Alloc>& __r, size_t __pos) 317951a39d68df598db08dfced8b4707755864a0492Ying Wang : _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos), 318951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_root_rope(&__r) 319951a39d68df598db08dfced8b4707755864a0492Ying Wang { _RopeRep::_S_ref(this->_M_root); } 320951a39d68df598db08dfced8b4707755864a0492Ying Wang 321951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 322951a39d68df598db08dfced8b4707755864a0492Ying Wang inline size_t 323951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 324951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_char_ptr_len(const _CharT* __s) 325951a39d68df598db08dfced8b4707755864a0492Ying Wang { 326951a39d68df598db08dfced8b4707755864a0492Ying Wang const _CharT* __p = __s; 327951a39d68df598db08dfced8b4707755864a0492Ying Wang 328951a39d68df598db08dfced8b4707755864a0492Ying Wang while (!_S_is0(*__p)) 329951a39d68df598db08dfced8b4707755864a0492Ying Wang ++__p; 330951a39d68df598db08dfced8b4707755864a0492Ying Wang return (__p - __s); 331951a39d68df598db08dfced8b4707755864a0492Ying Wang } 332951a39d68df598db08dfced8b4707755864a0492Ying Wang 333951a39d68df598db08dfced8b4707755864a0492Ying Wang 334951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 335951a39d68df598db08dfced8b4707755864a0492Ying Wang 336951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 337951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 338951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeRep<_CharT, _Alloc>:: 339951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_free_c_string() 340951a39d68df598db08dfced8b4707755864a0492Ying Wang { 341951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __cstr = _M_c_string; 342951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __cstr) 343951a39d68df598db08dfced8b4707755864a0492Ying Wang { 344951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __size = this->_M_size + 1; 345951a39d68df598db08dfced8b4707755864a0492Ying Wang _Destroy(__cstr, __cstr + __size, _M_get_allocator()); 346951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_Data_deallocate(__cstr, __size); 347951a39d68df598db08dfced8b4707755864a0492Ying Wang } 348951a39d68df598db08dfced8b4707755864a0492Ying Wang } 349951a39d68df598db08dfced8b4707755864a0492Ying Wang 350951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 351951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 352951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeRep<_CharT, _Alloc>:: 353951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_free_string(_CharT* __s, size_t __n, allocator_type& __a) 354951a39d68df598db08dfced8b4707755864a0492Ying Wang { 355951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!_S_is_basic_char_type((_CharT*)0)) 356951a39d68df598db08dfced8b4707755864a0492Ying Wang _Destroy(__s, __s + __n, __a); 357951a39d68df598db08dfced8b4707755864a0492Ying Wang 358951a39d68df598db08dfced8b4707755864a0492Ying Wang // This has to be a static member, so this gets a bit messy 359951a39d68df598db08dfced8b4707755864a0492Ying Wang __a.deallocate(__s, 360951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeLeaf<_CharT, _Alloc>::_S_rounded_up_size(__n)); 361951a39d68df598db08dfced8b4707755864a0492Ying Wang } 362951a39d68df598db08dfced8b4707755864a0492Ying Wang 363951a39d68df598db08dfced8b4707755864a0492Ying Wang // There are several reasons for not doing this with virtual destructors 364951a39d68df598db08dfced8b4707755864a0492Ying Wang // and a class specific delete operator: 365951a39d68df598db08dfced8b4707755864a0492Ying Wang // - A class specific delete operator can't easily get access to 366951a39d68df598db08dfced8b4707755864a0492Ying Wang // allocator instances if we need them. 367951a39d68df598db08dfced8b4707755864a0492Ying Wang // - Any virtual function would need a 4 or byte vtable pointer; 368951a39d68df598db08dfced8b4707755864a0492Ying Wang // this only requires a one byte tag per object. 369951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 370951a39d68df598db08dfced8b4707755864a0492Ying Wang void 371951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeRep<_CharT, _Alloc>:: 372951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_free_tree() 373951a39d68df598db08dfced8b4707755864a0492Ying Wang { 374951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(_M_tag) 375951a39d68df598db08dfced8b4707755864a0492Ying Wang { 376951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 377951a39d68df598db08dfced8b4707755864a0492Ying Wang { 378951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeLeaf<_CharT, _Alloc>* __l 379951a39d68df598db08dfced8b4707755864a0492Ying Wang = (_Rope_RopeLeaf<_CharT, _Alloc>*)this; 380951a39d68df598db08dfced8b4707755864a0492Ying Wang __l->_Rope_RopeLeaf<_CharT, _Alloc>::~_Rope_RopeLeaf(); 381951a39d68df598db08dfced8b4707755864a0492Ying Wang _L_deallocate(__l, 1); 382951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 383951a39d68df598db08dfced8b4707755864a0492Ying Wang } 384951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 385951a39d68df598db08dfced8b4707755864a0492Ying Wang { 386951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeConcatenation<_CharT,_Alloc>* __c 387951a39d68df598db08dfced8b4707755864a0492Ying Wang = (_Rope_RopeConcatenation<_CharT, _Alloc>*)this; 388951a39d68df598db08dfced8b4707755864a0492Ying Wang __c->_Rope_RopeConcatenation<_CharT, _Alloc>:: 389951a39d68df598db08dfced8b4707755864a0492Ying Wang ~_Rope_RopeConcatenation(); 390951a39d68df598db08dfced8b4707755864a0492Ying Wang _C_deallocate(__c, 1); 391951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 392951a39d68df598db08dfced8b4707755864a0492Ying Wang } 393951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 394951a39d68df598db08dfced8b4707755864a0492Ying Wang { 395951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeFunction<_CharT, _Alloc>* __f 396951a39d68df598db08dfced8b4707755864a0492Ying Wang = (_Rope_RopeFunction<_CharT, _Alloc>*)this; 397951a39d68df598db08dfced8b4707755864a0492Ying Wang __f->_Rope_RopeFunction<_CharT, _Alloc>::~_Rope_RopeFunction(); 398951a39d68df598db08dfced8b4707755864a0492Ying Wang _F_deallocate(__f, 1); 399951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 400951a39d68df598db08dfced8b4707755864a0492Ying Wang } 401951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 402951a39d68df598db08dfced8b4707755864a0492Ying Wang { 403951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeSubstring<_CharT, _Alloc>* __ss = 404951a39d68df598db08dfced8b4707755864a0492Ying Wang (_Rope_RopeSubstring<_CharT, _Alloc>*)this; 405951a39d68df598db08dfced8b4707755864a0492Ying Wang __ss->_Rope_RopeSubstring<_CharT, _Alloc>:: 406951a39d68df598db08dfced8b4707755864a0492Ying Wang ~_Rope_RopeSubstring(); 407951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_deallocate(__ss, 1); 408951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 409951a39d68df598db08dfced8b4707755864a0492Ying Wang } 410951a39d68df598db08dfced8b4707755864a0492Ying Wang } 411951a39d68df598db08dfced8b4707755864a0492Ying Wang } 412951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 413951a39d68df598db08dfced8b4707755864a0492Ying Wang 414951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 415951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 416951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_RopeRep<_CharT, _Alloc>:: 417951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_free_string(const _CharT*, size_t, allocator_type) 418951a39d68df598db08dfced8b4707755864a0492Ying Wang { } 419951a39d68df598db08dfced8b4707755864a0492Ying Wang 420951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 421951a39d68df598db08dfced8b4707755864a0492Ying Wang 422951a39d68df598db08dfced8b4707755864a0492Ying Wang // Concatenate a C string onto a leaf rope by copying the rope data. 423951a39d68df598db08dfced8b4707755864a0492Ying Wang // Used for short ropes. 424951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 425951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeLeaf* 426951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 427951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_leaf_concat_char_iter(_RopeLeaf* __r, const _CharT* __iter, size_t __len) 428951a39d68df598db08dfced8b4707755864a0492Ying Wang { 429951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __old_len = __r->_M_size; 430951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __new_data = (_CharT*) 431951a39d68df598db08dfced8b4707755864a0492Ying Wang _Data_allocate(_S_rounded_up_size(__old_len + __len)); 432951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __result; 433951a39d68df598db08dfced8b4707755864a0492Ying Wang 434951a39d68df598db08dfced8b4707755864a0492Ying Wang uninitialized_copy_n(__r->_M_data, __old_len, __new_data); 435951a39d68df598db08dfced8b4707755864a0492Ying Wang uninitialized_copy_n(__iter, __len, __new_data + __old_len); 436951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_cond_store_eos(__new_data[__old_len + __len]); 437951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 438951a39d68df598db08dfced8b4707755864a0492Ying Wang { 439951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_new_RopeLeaf(__new_data, __old_len + __len, 440951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_get_allocator()); 441951a39d68df598db08dfced8b4707755864a0492Ying Wang } 442951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 443951a39d68df598db08dfced8b4707755864a0492Ying Wang { 444951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::__STL_FREE_STRING(__new_data, __old_len + __len, 445951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_get_allocator()); 446951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 447951a39d68df598db08dfced8b4707755864a0492Ying Wang } 448951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 449951a39d68df598db08dfced8b4707755864a0492Ying Wang } 450951a39d68df598db08dfced8b4707755864a0492Ying Wang 451951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 452951a39d68df598db08dfced8b4707755864a0492Ying Wang // As above, but it's OK to clobber original if refcount is 1 453951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 454951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT,_Alloc>::_RopeLeaf* 455951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 456951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_destr_leaf_concat_char_iter(_RopeLeaf* __r, const _CharT* __iter, 457951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __len) 458951a39d68df598db08dfced8b4707755864a0492Ying Wang { 459951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__r->_M_ref_count > 1) 460951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_leaf_concat_char_iter(__r, __iter, __len); 461951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __old_len = __r->_M_size; 462951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_S_allocated_capacity(__old_len) >= __old_len + __len) 463951a39d68df598db08dfced8b4707755864a0492Ying Wang { 464951a39d68df598db08dfced8b4707755864a0492Ying Wang // The space has been partially initialized for the standard 465951a39d68df598db08dfced8b4707755864a0492Ying Wang // character types. But that doesn't matter for those types. 466951a39d68df598db08dfced8b4707755864a0492Ying Wang uninitialized_copy_n(__iter, __len, __r->_M_data + __old_len); 467951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_S_is_basic_char_type((_CharT*)0)) 468951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_cond_store_eos(__r->_M_data[__old_len + __len]); 469951a39d68df598db08dfced8b4707755864a0492Ying Wang else if (__r->_M_c_string != __r->_M_data && 0 != __r->_M_c_string) 470951a39d68df598db08dfced8b4707755864a0492Ying Wang { 471951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_free_c_string(); 472951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_c_string = 0; 473951a39d68df598db08dfced8b4707755864a0492Ying Wang } 474951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_size = __old_len + __len; 475951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_ref_count = 2; 476951a39d68df598db08dfced8b4707755864a0492Ying Wang return __r; 477951a39d68df598db08dfced8b4707755864a0492Ying Wang } 478951a39d68df598db08dfced8b4707755864a0492Ying Wang else 479951a39d68df598db08dfced8b4707755864a0492Ying Wang { 480951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __result = _S_leaf_concat_char_iter(__r, __iter, __len); 481951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 482951a39d68df598db08dfced8b4707755864a0492Ying Wang } 483951a39d68df598db08dfced8b4707755864a0492Ying Wang } 484951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 485951a39d68df598db08dfced8b4707755864a0492Ying Wang 486951a39d68df598db08dfced8b4707755864a0492Ying Wang // Assumes left and right are not 0. 487951a39d68df598db08dfced8b4707755864a0492Ying Wang // Does not increment (nor decrement on exception) child reference counts. 488951a39d68df598db08dfced8b4707755864a0492Ying Wang // Result has ref count 1. 489951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 490951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeRep* 491951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 492951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_tree_concat(_RopeRep* __left, _RopeRep* __right) 493951a39d68df598db08dfced8b4707755864a0492Ying Wang { 494951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __result = _S_new_RopeConcatenation(__left, __right, 495951a39d68df598db08dfced8b4707755864a0492Ying Wang __left-> 496951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 497951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __depth = __result->_M_depth; 498951a39d68df598db08dfced8b4707755864a0492Ying Wang 499951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__depth > 20 500951a39d68df598db08dfced8b4707755864a0492Ying Wang && (__result->_M_size < 1000 501951a39d68df598db08dfced8b4707755864a0492Ying Wang || __depth > size_t(__detail::_S_max_rope_depth))) 502951a39d68df598db08dfced8b4707755864a0492Ying Wang { 503951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __balanced; 504951a39d68df598db08dfced8b4707755864a0492Ying Wang 505951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 506951a39d68df598db08dfced8b4707755864a0492Ying Wang { 507951a39d68df598db08dfced8b4707755864a0492Ying Wang __balanced = _S_balance(__result); 508951a39d68df598db08dfced8b4707755864a0492Ying Wang __result->_M_unref_nonnil(); 509951a39d68df598db08dfced8b4707755864a0492Ying Wang } 510951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 511951a39d68df598db08dfced8b4707755864a0492Ying Wang { 512951a39d68df598db08dfced8b4707755864a0492Ying Wang _C_deallocate(__result,1); 513951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 514951a39d68df598db08dfced8b4707755864a0492Ying Wang } 515951a39d68df598db08dfced8b4707755864a0492Ying Wang // In case of exception, we need to deallocate 516951a39d68df598db08dfced8b4707755864a0492Ying Wang // otherwise dangling result node. But caller 517951a39d68df598db08dfced8b4707755864a0492Ying Wang // still owns its children. Thus unref is 518951a39d68df598db08dfced8b4707755864a0492Ying Wang // inappropriate. 519951a39d68df598db08dfced8b4707755864a0492Ying Wang return __balanced; 520951a39d68df598db08dfced8b4707755864a0492Ying Wang } 521951a39d68df598db08dfced8b4707755864a0492Ying Wang else 522951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 523951a39d68df598db08dfced8b4707755864a0492Ying Wang } 524951a39d68df598db08dfced8b4707755864a0492Ying Wang 525951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 526951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeRep* 527951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 528951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_concat_char_iter(_RopeRep* __r, const _CharT*__s, size_t __slen) 529951a39d68df598db08dfced8b4707755864a0492Ying Wang { 530951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __result; 531951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __slen) 532951a39d68df598db08dfced8b4707755864a0492Ying Wang { 533951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_ref(__r); 534951a39d68df598db08dfced8b4707755864a0492Ying Wang return __r; 535951a39d68df598db08dfced8b4707755864a0492Ying Wang } 536951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __r) 537951a39d68df598db08dfced8b4707755864a0492Ying Wang return __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, 538951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_get_allocator()); 539951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__r->_M_tag == __detail::_S_leaf 540951a39d68df598db08dfced8b4707755864a0492Ying Wang && __r->_M_size + __slen <= size_t(_S_copy_max)) 541951a39d68df598db08dfced8b4707755864a0492Ying Wang { 542951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_leaf_concat_char_iter((_RopeLeaf*)__r, __s, __slen); 543951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 544951a39d68df598db08dfced8b4707755864a0492Ying Wang } 545951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_concat == __r->_M_tag 546951a39d68df598db08dfced8b4707755864a0492Ying Wang && __detail::_S_leaf == ((_RopeConcatenation*) __r)->_M_right->_M_tag) 547951a39d68df598db08dfced8b4707755864a0492Ying Wang { 548951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __right = 549951a39d68df598db08dfced8b4707755864a0492Ying Wang (_RopeLeaf* )(((_RopeConcatenation* )__r)->_M_right); 550951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__right->_M_size + __slen <= size_t(_S_copy_max)) 551951a39d68df598db08dfced8b4707755864a0492Ying Wang { 552951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = ((_RopeConcatenation*)__r)->_M_left; 553951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __nright = 554951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_leaf_concat_char_iter((_RopeLeaf*)__right, __s, __slen); 555951a39d68df598db08dfced8b4707755864a0492Ying Wang __left->_M_ref_nonnil(); 556951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 557951a39d68df598db08dfced8b4707755864a0492Ying Wang { __result = _S_tree_concat(__left, __nright); } 558951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 559951a39d68df598db08dfced8b4707755864a0492Ying Wang { 560951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__left); 561951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__nright); 562951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 563951a39d68df598db08dfced8b4707755864a0492Ying Wang } 564951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 565951a39d68df598db08dfced8b4707755864a0492Ying Wang } 566951a39d68df598db08dfced8b4707755864a0492Ying Wang } 567951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __nright = 568951a39d68df598db08dfced8b4707755864a0492Ying Wang __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, __r->_M_get_allocator()); 569951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 570951a39d68df598db08dfced8b4707755864a0492Ying Wang { 571951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_ref_nonnil(); 572951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_tree_concat(__r, __nright); 573951a39d68df598db08dfced8b4707755864a0492Ying Wang } 574951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 575951a39d68df598db08dfced8b4707755864a0492Ying Wang { 576951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__r); 577951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__nright); 578951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 579951a39d68df598db08dfced8b4707755864a0492Ying Wang } 580951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 581951a39d68df598db08dfced8b4707755864a0492Ying Wang } 582951a39d68df598db08dfced8b4707755864a0492Ying Wang 583951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 584951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 585951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT,_Alloc>::_RopeRep* 586951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT,_Alloc>:: 587951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_destr_concat_char_iter(_RopeRep* __r, const _CharT* __s, size_t __slen) 588951a39d68df598db08dfced8b4707755864a0492Ying Wang { 589951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __result; 590951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __r) 591951a39d68df598db08dfced8b4707755864a0492Ying Wang return __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, 592951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_get_allocator()); 593951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __count = __r->_M_ref_count; 594951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __orig_size = __r->_M_size; 595951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__count > 1) 596951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_concat_char_iter(__r, __s, __slen); 597951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __slen) 598951a39d68df598db08dfced8b4707755864a0492Ying Wang { 599951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_ref_count = 2; // One more than before 600951a39d68df598db08dfced8b4707755864a0492Ying Wang return __r; 601951a39d68df598db08dfced8b4707755864a0492Ying Wang } 602951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__orig_size + __slen <= size_t(_S_copy_max) 603951a39d68df598db08dfced8b4707755864a0492Ying Wang && __detail::_S_leaf == __r->_M_tag) 604951a39d68df598db08dfced8b4707755864a0492Ying Wang { 605951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_destr_leaf_concat_char_iter((_RopeLeaf*)__r, __s, 606951a39d68df598db08dfced8b4707755864a0492Ying Wang __slen); 607951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 608951a39d68df598db08dfced8b4707755864a0492Ying Wang } 609951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_concat == __r->_M_tag) 610951a39d68df598db08dfced8b4707755864a0492Ying Wang { 611951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __right = (_RopeLeaf*)(((_RopeConcatenation*) 612951a39d68df598db08dfced8b4707755864a0492Ying Wang __r)->_M_right); 613951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __right->_M_tag 614951a39d68df598db08dfced8b4707755864a0492Ying Wang && __right->_M_size + __slen <= size_t(_S_copy_max)) 615951a39d68df598db08dfced8b4707755864a0492Ying Wang { 616951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __new_right = 617951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_destr_leaf_concat_char_iter(__right, __s, __slen); 618951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__right == __new_right) 619951a39d68df598db08dfced8b4707755864a0492Ying Wang __new_right->_M_ref_count = 1; 620951a39d68df598db08dfced8b4707755864a0492Ying Wang else 621951a39d68df598db08dfced8b4707755864a0492Ying Wang __right->_M_unref_nonnil(); 622951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_ref_count = 2; // One more than before. 623951a39d68df598db08dfced8b4707755864a0492Ying Wang ((_RopeConcatenation*)__r)->_M_right = __new_right; 624951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_size = __orig_size + __slen; 625951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __r->_M_c_string) 626951a39d68df598db08dfced8b4707755864a0492Ying Wang { 627951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_free_c_string(); 628951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_c_string = 0; 629951a39d68df598db08dfced8b4707755864a0492Ying Wang } 630951a39d68df598db08dfced8b4707755864a0492Ying Wang return __r; 631951a39d68df598db08dfced8b4707755864a0492Ying Wang } 632951a39d68df598db08dfced8b4707755864a0492Ying Wang } 633951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __right = 634951a39d68df598db08dfced8b4707755864a0492Ying Wang __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, __r->_M_get_allocator()); 635951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_ref_nonnil(); 636951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 637951a39d68df598db08dfced8b4707755864a0492Ying Wang { __result = _S_tree_concat(__r, __right); } 638951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 639951a39d68df598db08dfced8b4707755864a0492Ying Wang { 640951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__r); 641951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__right); 642951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 643951a39d68df598db08dfced8b4707755864a0492Ying Wang } 644951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 645951a39d68df598db08dfced8b4707755864a0492Ying Wang } 646951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* !__GC */ 647951a39d68df598db08dfced8b4707755864a0492Ying Wang 648951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 649951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeRep* 650951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 651951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_concat(_RopeRep* __left, _RopeRep* __right) 652951a39d68df598db08dfced8b4707755864a0492Ying Wang { 653951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __left) 654951a39d68df598db08dfced8b4707755864a0492Ying Wang { 655951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_ref(__right); 656951a39d68df598db08dfced8b4707755864a0492Ying Wang return __right; 657951a39d68df598db08dfced8b4707755864a0492Ying Wang } 658951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __right) 659951a39d68df598db08dfced8b4707755864a0492Ying Wang { 660951a39d68df598db08dfced8b4707755864a0492Ying Wang __left->_M_ref_nonnil(); 661951a39d68df598db08dfced8b4707755864a0492Ying Wang return __left; 662951a39d68df598db08dfced8b4707755864a0492Ying Wang } 663951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __right->_M_tag) 664951a39d68df598db08dfced8b4707755864a0492Ying Wang { 665951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __left->_M_tag) 666951a39d68df598db08dfced8b4707755864a0492Ying Wang { 667951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__right->_M_size + __left->_M_size <= size_t(_S_copy_max)) 668951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_leaf_concat_char_iter((_RopeLeaf*)__left, 669951a39d68df598db08dfced8b4707755864a0492Ying Wang ((_RopeLeaf*)__right)->_M_data, 670951a39d68df598db08dfced8b4707755864a0492Ying Wang __right->_M_size); 671951a39d68df598db08dfced8b4707755864a0492Ying Wang } 672951a39d68df598db08dfced8b4707755864a0492Ying Wang else if (__detail::_S_concat == __left->_M_tag 673951a39d68df598db08dfced8b4707755864a0492Ying Wang && __detail::_S_leaf == ((_RopeConcatenation*) 674951a39d68df598db08dfced8b4707755864a0492Ying Wang __left)->_M_right->_M_tag) 675951a39d68df598db08dfced8b4707755864a0492Ying Wang { 676951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __leftright = 677951a39d68df598db08dfced8b4707755864a0492Ying Wang (_RopeLeaf*)(((_RopeConcatenation*)__left)->_M_right); 678951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__leftright->_M_size 679951a39d68df598db08dfced8b4707755864a0492Ying Wang + __right->_M_size <= size_t(_S_copy_max)) 680951a39d68df598db08dfced8b4707755864a0492Ying Wang { 681951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __leftleft = ((_RopeConcatenation*)__left)->_M_left; 682951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __rest = _S_leaf_concat_char_iter(__leftright, 683951a39d68df598db08dfced8b4707755864a0492Ying Wang ((_RopeLeaf*) 684951a39d68df598db08dfced8b4707755864a0492Ying Wang __right)-> 685951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_data, 686951a39d68df598db08dfced8b4707755864a0492Ying Wang __right->_M_size); 687951a39d68df598db08dfced8b4707755864a0492Ying Wang __leftleft->_M_ref_nonnil(); 688951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 689951a39d68df598db08dfced8b4707755864a0492Ying Wang { return(_S_tree_concat(__leftleft, __rest)); } 690951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 691951a39d68df598db08dfced8b4707755864a0492Ying Wang { 692951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__leftleft); 693951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__rest); 694951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 695951a39d68df598db08dfced8b4707755864a0492Ying Wang } 696951a39d68df598db08dfced8b4707755864a0492Ying Wang } 697951a39d68df598db08dfced8b4707755864a0492Ying Wang } 698951a39d68df598db08dfced8b4707755864a0492Ying Wang } 699951a39d68df598db08dfced8b4707755864a0492Ying Wang __left->_M_ref_nonnil(); 700951a39d68df598db08dfced8b4707755864a0492Ying Wang __right->_M_ref_nonnil(); 701951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 702951a39d68df598db08dfced8b4707755864a0492Ying Wang { return(_S_tree_concat(__left, __right)); } 703951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 704951a39d68df598db08dfced8b4707755864a0492Ying Wang { 705951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__left); 706951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__right); 707951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 708951a39d68df598db08dfced8b4707755864a0492Ying Wang } 709951a39d68df598db08dfced8b4707755864a0492Ying Wang } 710951a39d68df598db08dfced8b4707755864a0492Ying Wang 711951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 712951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeRep* 713951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 714951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_substring(_RopeRep* __base, size_t __start, size_t __endp1) 715951a39d68df598db08dfced8b4707755864a0492Ying Wang { 716951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __base) 717951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 718951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __len = __base->_M_size; 719951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __adj_endp1; 720951a39d68df598db08dfced8b4707755864a0492Ying Wang const size_t __lazy_threshold = 128; 721951a39d68df598db08dfced8b4707755864a0492Ying Wang 722951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__endp1 >= __len) 723951a39d68df598db08dfced8b4707755864a0492Ying Wang { 724951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __start) 725951a39d68df598db08dfced8b4707755864a0492Ying Wang { 726951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_ref_nonnil(); 727951a39d68df598db08dfced8b4707755864a0492Ying Wang return __base; 728951a39d68df598db08dfced8b4707755864a0492Ying Wang } 729951a39d68df598db08dfced8b4707755864a0492Ying Wang else 730951a39d68df598db08dfced8b4707755864a0492Ying Wang __adj_endp1 = __len; 731951a39d68df598db08dfced8b4707755864a0492Ying Wang 732951a39d68df598db08dfced8b4707755864a0492Ying Wang } 733951a39d68df598db08dfced8b4707755864a0492Ying Wang else 734951a39d68df598db08dfced8b4707755864a0492Ying Wang __adj_endp1 = __endp1; 735951a39d68df598db08dfced8b4707755864a0492Ying Wang 736951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__base->_M_tag) 737951a39d68df598db08dfced8b4707755864a0492Ying Wang { 738951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 739951a39d68df598db08dfced8b4707755864a0492Ying Wang { 740951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__base; 741951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 742951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __right = __c->_M_right; 743951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len = __left->_M_size; 744951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __result; 745951a39d68df598db08dfced8b4707755864a0492Ying Wang 746951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__adj_endp1 <= __left_len) 747951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_substring(__left, __start, __endp1); 748951a39d68df598db08dfced8b4707755864a0492Ying Wang else if (__start >= __left_len) 749951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_substring(__right, __start - __left_len, 750951a39d68df598db08dfced8b4707755864a0492Ying Wang __adj_endp1 - __left_len); 751951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __left_result(_S_substring(__left, 752951a39d68df598db08dfced8b4707755864a0492Ying Wang __start, 753951a39d68df598db08dfced8b4707755864a0492Ying Wang __left_len)); 754951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __right_result(_S_substring(__right, 0, 755951a39d68df598db08dfced8b4707755864a0492Ying Wang __endp1 756951a39d68df598db08dfced8b4707755864a0492Ying Wang - __left_len)); 757951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_concat(__left_result, __right_result); 758951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 759951a39d68df598db08dfced8b4707755864a0492Ying Wang } 760951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 761951a39d68df598db08dfced8b4707755864a0492Ying Wang { 762951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*)__base; 763951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __result; 764951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __result_len; 765951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__start >= __adj_endp1) 766951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 767951a39d68df598db08dfced8b4707755864a0492Ying Wang __result_len = __adj_endp1 - __start; 768951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__result_len > __lazy_threshold) 769951a39d68df598db08dfced8b4707755864a0492Ying Wang goto lazy; 770951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef __GC 771951a39d68df598db08dfced8b4707755864a0492Ying Wang const _CharT* __section = __l->_M_data + __start; 772951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_new_RopeLeaf(__section, __result_len, 773951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_get_allocator()); 774951a39d68df598db08dfced8b4707755864a0492Ying Wang __result->_M_c_string = 0; // Not eos terminated. 775951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 776951a39d68df598db08dfced8b4707755864a0492Ying Wang // We should sometimes create substring node instead. 777951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__l->_M_data + __start, 778951a39d68df598db08dfced8b4707755864a0492Ying Wang __result_len, 779951a39d68df598db08dfced8b4707755864a0492Ying Wang __base-> 780951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 781951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 782951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 783951a39d68df598db08dfced8b4707755864a0492Ying Wang } 784951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 785951a39d68df598db08dfced8b4707755864a0492Ying Wang // Avoid introducing multiple layers of substring nodes. 786951a39d68df598db08dfced8b4707755864a0492Ying Wang { 787951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeSubstring* __old = (_RopeSubstring*)__base; 788951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __result_len; 789951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__start >= __adj_endp1) 790951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 791951a39d68df598db08dfced8b4707755864a0492Ying Wang __result_len = __adj_endp1 - __start; 792951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__result_len > __lazy_threshold) 793951a39d68df598db08dfced8b4707755864a0492Ying Wang { 794951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeSubstring* __result = 795951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_new_RopeSubstring(__old->_M_base, 796951a39d68df598db08dfced8b4707755864a0492Ying Wang __start + __old->_M_start, 797951a39d68df598db08dfced8b4707755864a0492Ying Wang __adj_endp1 - __start, 798951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_get_allocator()); 799951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 800951a39d68df598db08dfced8b4707755864a0492Ying Wang 801951a39d68df598db08dfced8b4707755864a0492Ying Wang } // *** else fall through: *** 802951a39d68df598db08dfced8b4707755864a0492Ying Wang } 803951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 804951a39d68df598db08dfced8b4707755864a0492Ying Wang { 805951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeFunction* __f = (_RopeFunction*)__base; 806951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __section; 807951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __result_len; 808951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__start >= __adj_endp1) 809951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 810951a39d68df598db08dfced8b4707755864a0492Ying Wang __result_len = __adj_endp1 - __start; 811951a39d68df598db08dfced8b4707755864a0492Ying Wang 812951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__result_len > __lazy_threshold) 813951a39d68df598db08dfced8b4707755864a0492Ying Wang goto lazy; 814951a39d68df598db08dfced8b4707755864a0492Ying Wang __section = (_CharT*) 815951a39d68df598db08dfced8b4707755864a0492Ying Wang _Data_allocate(_S_rounded_up_size(__result_len)); 816951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 817951a39d68df598db08dfced8b4707755864a0492Ying Wang { (*(__f->_M_fn))(__start, __result_len, __section); } 818951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 819951a39d68df598db08dfced8b4707755864a0492Ying Wang { 820951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::__STL_FREE_STRING(__section, __result_len, 821951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_get_allocator()); 822951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 823951a39d68df598db08dfced8b4707755864a0492Ying Wang } 824951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_cond_store_eos(__section[__result_len]); 825951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_new_RopeLeaf(__section, __result_len, 826951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_get_allocator()); 827951a39d68df598db08dfced8b4707755864a0492Ying Wang } 828951a39d68df598db08dfced8b4707755864a0492Ying Wang } 829951a39d68df598db08dfced8b4707755864a0492Ying Wang lazy: 830951a39d68df598db08dfced8b4707755864a0492Ying Wang { 831951a39d68df598db08dfced8b4707755864a0492Ying Wang // Create substring node. 832951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_new_RopeSubstring(__base, __start, __adj_endp1 - __start, 833951a39d68df598db08dfced8b4707755864a0492Ying Wang __base->_M_get_allocator()); 834951a39d68df598db08dfced8b4707755864a0492Ying Wang } 835951a39d68df598db08dfced8b4707755864a0492Ying Wang } 836951a39d68df598db08dfced8b4707755864a0492Ying Wang 837951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT> 838951a39d68df598db08dfced8b4707755864a0492Ying Wang class _Rope_flatten_char_consumer 839951a39d68df598db08dfced8b4707755864a0492Ying Wang : public _Rope_char_consumer<_CharT> 840951a39d68df598db08dfced8b4707755864a0492Ying Wang { 841951a39d68df598db08dfced8b4707755864a0492Ying Wang private: 842951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* _M_buf_ptr; 843951a39d68df598db08dfced8b4707755864a0492Ying Wang public: 844951a39d68df598db08dfced8b4707755864a0492Ying Wang 845951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_flatten_char_consumer(_CharT* __buffer) 846951a39d68df598db08dfced8b4707755864a0492Ying Wang { _M_buf_ptr = __buffer; }; 847951a39d68df598db08dfced8b4707755864a0492Ying Wang 848951a39d68df598db08dfced8b4707755864a0492Ying Wang ~_Rope_flatten_char_consumer() {} 849951a39d68df598db08dfced8b4707755864a0492Ying Wang 850951a39d68df598db08dfced8b4707755864a0492Ying Wang bool 851951a39d68df598db08dfced8b4707755864a0492Ying Wang operator()(const _CharT* __leaf, size_t __n) 852951a39d68df598db08dfced8b4707755864a0492Ying Wang { 853951a39d68df598db08dfced8b4707755864a0492Ying Wang uninitialized_copy_n(__leaf, __n, _M_buf_ptr); 854951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_buf_ptr += __n; 855951a39d68df598db08dfced8b4707755864a0492Ying Wang return true; 856951a39d68df598db08dfced8b4707755864a0492Ying Wang } 857951a39d68df598db08dfced8b4707755864a0492Ying Wang }; 858951a39d68df598db08dfced8b4707755864a0492Ying Wang 859951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT> 860951a39d68df598db08dfced8b4707755864a0492Ying Wang class _Rope_find_char_char_consumer 861951a39d68df598db08dfced8b4707755864a0492Ying Wang : public _Rope_char_consumer<_CharT> 862951a39d68df598db08dfced8b4707755864a0492Ying Wang { 863951a39d68df598db08dfced8b4707755864a0492Ying Wang private: 864951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT _M_pattern; 865951a39d68df598db08dfced8b4707755864a0492Ying Wang public: 866951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t _M_count; // Number of nonmatching characters 867951a39d68df598db08dfced8b4707755864a0492Ying Wang 868951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_find_char_char_consumer(_CharT __p) 869951a39d68df598db08dfced8b4707755864a0492Ying Wang : _M_pattern(__p), _M_count(0) {} 870951a39d68df598db08dfced8b4707755864a0492Ying Wang 871951a39d68df598db08dfced8b4707755864a0492Ying Wang ~_Rope_find_char_char_consumer() {} 872951a39d68df598db08dfced8b4707755864a0492Ying Wang 873951a39d68df598db08dfced8b4707755864a0492Ying Wang bool 874951a39d68df598db08dfced8b4707755864a0492Ying Wang operator()(const _CharT* __leaf, size_t __n) 875951a39d68df598db08dfced8b4707755864a0492Ying Wang { 876951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __i; 877951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i < __n; __i++) 878951a39d68df598db08dfced8b4707755864a0492Ying Wang { 879951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__leaf[__i] == _M_pattern) 880951a39d68df598db08dfced8b4707755864a0492Ying Wang { 881951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_count += __i; 882951a39d68df598db08dfced8b4707755864a0492Ying Wang return false; 883951a39d68df598db08dfced8b4707755864a0492Ying Wang } 884951a39d68df598db08dfced8b4707755864a0492Ying Wang } 885951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_count += __n; return true; 886951a39d68df598db08dfced8b4707755864a0492Ying Wang } 887951a39d68df598db08dfced8b4707755864a0492Ying Wang }; 888951a39d68df598db08dfced8b4707755864a0492Ying Wang 889951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Traits> 890951a39d68df598db08dfced8b4707755864a0492Ying Wang // Here _CharT is both the stream and rope character type. 891951a39d68df598db08dfced8b4707755864a0492Ying Wang class _Rope_insert_char_consumer 892951a39d68df598db08dfced8b4707755864a0492Ying Wang : public _Rope_char_consumer<_CharT> 893951a39d68df598db08dfced8b4707755864a0492Ying Wang { 894951a39d68df598db08dfced8b4707755864a0492Ying Wang private: 895951a39d68df598db08dfced8b4707755864a0492Ying Wang typedef basic_ostream<_CharT,_Traits> _Insert_ostream; 896951a39d68df598db08dfced8b4707755864a0492Ying Wang _Insert_ostream& _M_o; 897951a39d68df598db08dfced8b4707755864a0492Ying Wang public: 898951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_insert_char_consumer(_Insert_ostream& __writer) 899951a39d68df598db08dfced8b4707755864a0492Ying Wang : _M_o(__writer) {}; 900951a39d68df598db08dfced8b4707755864a0492Ying Wang ~_Rope_insert_char_consumer() { }; 901951a39d68df598db08dfced8b4707755864a0492Ying Wang // Caller is presumed to own the ostream 902951a39d68df598db08dfced8b4707755864a0492Ying Wang bool operator() (const _CharT* __leaf, size_t __n); 903951a39d68df598db08dfced8b4707755864a0492Ying Wang // Returns true to continue traversal. 904951a39d68df598db08dfced8b4707755864a0492Ying Wang }; 905951a39d68df598db08dfced8b4707755864a0492Ying Wang 906951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Traits> 907951a39d68df598db08dfced8b4707755864a0492Ying Wang bool 908951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_insert_char_consumer<_CharT, _Traits>:: 909951a39d68df598db08dfced8b4707755864a0492Ying Wang operator()(const _CharT* __leaf, size_t __n) 910951a39d68df598db08dfced8b4707755864a0492Ying Wang { 911951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __i; 912951a39d68df598db08dfced8b4707755864a0492Ying Wang // We assume that formatting is set up correctly for each element. 913951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i < __n; __i++) 914951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_o.put(__leaf[__i]); 915951a39d68df598db08dfced8b4707755864a0492Ying Wang return true; 916951a39d68df598db08dfced8b4707755864a0492Ying Wang } 917951a39d68df598db08dfced8b4707755864a0492Ying Wang 918951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 919951a39d68df598db08dfced8b4707755864a0492Ying Wang bool 920951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 921951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_apply_to_pieces(_Rope_char_consumer<_CharT>& __c, 922951a39d68df598db08dfced8b4707755864a0492Ying Wang const _RopeRep* __r, size_t __begin, size_t __end) 923951a39d68df598db08dfced8b4707755864a0492Ying Wang { 924951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __r) 925951a39d68df598db08dfced8b4707755864a0492Ying Wang return true; 926951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__r->_M_tag) 927951a39d68df598db08dfced8b4707755864a0492Ying Wang { 928951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 929951a39d68df598db08dfced8b4707755864a0492Ying Wang { 930951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __conc = (_RopeConcatenation*)__r; 931951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __conc->_M_left; 932951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len = __left->_M_size; 933951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__begin < __left_len) 934951a39d68df598db08dfced8b4707755864a0492Ying Wang { 935951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_end = std::min(__left_len, __end); 936951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!_S_apply_to_pieces(__c, __left, __begin, __left_end)) 937951a39d68df598db08dfced8b4707755864a0492Ying Wang return false; 938951a39d68df598db08dfced8b4707755864a0492Ying Wang } 939951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__end > __left_len) 940951a39d68df598db08dfced8b4707755864a0492Ying Wang { 941951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __right = __conc->_M_right; 942951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __right_start = std::max(__left_len, __begin); 943951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!_S_apply_to_pieces(__c, __right, 944951a39d68df598db08dfced8b4707755864a0492Ying Wang __right_start - __left_len, 945951a39d68df598db08dfced8b4707755864a0492Ying Wang __end - __left_len)) 946951a39d68df598db08dfced8b4707755864a0492Ying Wang return false; 947951a39d68df598db08dfced8b4707755864a0492Ying Wang } 948951a39d68df598db08dfced8b4707755864a0492Ying Wang } 949951a39d68df598db08dfced8b4707755864a0492Ying Wang return true; 950951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 951951a39d68df598db08dfced8b4707755864a0492Ying Wang { 952951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*)__r; 953951a39d68df598db08dfced8b4707755864a0492Ying Wang return __c(__l->_M_data + __begin, __end - __begin); 954951a39d68df598db08dfced8b4707755864a0492Ying Wang } 955951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 956951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 957951a39d68df598db08dfced8b4707755864a0492Ying Wang { 958951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeFunction* __f = (_RopeFunction*)__r; 959951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __len = __end - __begin; 960951a39d68df598db08dfced8b4707755864a0492Ying Wang bool __result; 961951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __buffer = 962951a39d68df598db08dfced8b4707755864a0492Ying Wang (_CharT*)_Alloc().allocate(__len * sizeof(_CharT)); 963951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 964951a39d68df598db08dfced8b4707755864a0492Ying Wang { 965951a39d68df598db08dfced8b4707755864a0492Ying Wang (*(__f->_M_fn))(__begin, __len, __buffer); 966951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = __c(__buffer, __len); 967951a39d68df598db08dfced8b4707755864a0492Ying Wang _Alloc().deallocate(__buffer, __len * sizeof(_CharT)); 968951a39d68df598db08dfced8b4707755864a0492Ying Wang } 969951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 970951a39d68df598db08dfced8b4707755864a0492Ying Wang { 971951a39d68df598db08dfced8b4707755864a0492Ying Wang _Alloc().deallocate(__buffer, __len * sizeof(_CharT)); 972951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 973951a39d68df598db08dfced8b4707755864a0492Ying Wang } 974951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 975951a39d68df598db08dfced8b4707755864a0492Ying Wang } 976951a39d68df598db08dfced8b4707755864a0492Ying Wang default: 977951a39d68df598db08dfced8b4707755864a0492Ying Wang return false; 978951a39d68df598db08dfced8b4707755864a0492Ying Wang } 979951a39d68df598db08dfced8b4707755864a0492Ying Wang } 980951a39d68df598db08dfced8b4707755864a0492Ying Wang 981951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Traits> 982951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 983951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_fill(basic_ostream<_CharT, _Traits>& __o, size_t __n) 984951a39d68df598db08dfced8b4707755864a0492Ying Wang { 985951a39d68df598db08dfced8b4707755864a0492Ying Wang char __f = __o.fill(); 986951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __i; 987951a39d68df598db08dfced8b4707755864a0492Ying Wang 988951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i < __n; __i++) 989951a39d68df598db08dfced8b4707755864a0492Ying Wang __o.put(__f); 990951a39d68df598db08dfced8b4707755864a0492Ying Wang } 991951a39d68df598db08dfced8b4707755864a0492Ying Wang 992951a39d68df598db08dfced8b4707755864a0492Ying Wang 993951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT> 994951a39d68df598db08dfced8b4707755864a0492Ying Wang inline bool 995951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_is_simple(_CharT*) 996951a39d68df598db08dfced8b4707755864a0492Ying Wang { return false; } 997951a39d68df598db08dfced8b4707755864a0492Ying Wang 998951a39d68df598db08dfced8b4707755864a0492Ying Wang inline bool 999951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_is_simple(char*) 1000951a39d68df598db08dfced8b4707755864a0492Ying Wang { return true; } 1001951a39d68df598db08dfced8b4707755864a0492Ying Wang 1002951a39d68df598db08dfced8b4707755864a0492Ying Wang inline bool 1003951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_is_simple(wchar_t*) 1004951a39d68df598db08dfced8b4707755864a0492Ying Wang { return true; } 1005951a39d68df598db08dfced8b4707755864a0492Ying Wang 1006951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Traits, class _Alloc> 1007951a39d68df598db08dfced8b4707755864a0492Ying Wang basic_ostream<_CharT, _Traits>& 1008951a39d68df598db08dfced8b4707755864a0492Ying Wang operator<<(basic_ostream<_CharT, _Traits>& __o, 1009951a39d68df598db08dfced8b4707755864a0492Ying Wang const rope<_CharT, _Alloc>& __r) 1010951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1011951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __w = __o.width(); 1012951a39d68df598db08dfced8b4707755864a0492Ying Wang bool __left = bool(__o.flags() & std::ios::left); 1013951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __pad_len; 1014951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __rope_len = __r.size(); 1015951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_insert_char_consumer<_CharT, _Traits> __c(__o); 1016951a39d68df598db08dfced8b4707755864a0492Ying Wang bool __is_simple = _Rope_is_simple((_CharT*)0); 1017951a39d68df598db08dfced8b4707755864a0492Ying Wang 1018951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__rope_len < __w) 1019951a39d68df598db08dfced8b4707755864a0492Ying Wang __pad_len = __w - __rope_len; 1020951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1021951a39d68df598db08dfced8b4707755864a0492Ying Wang __pad_len = 0; 1022951a39d68df598db08dfced8b4707755864a0492Ying Wang 1023951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__is_simple) 1024951a39d68df598db08dfced8b4707755864a0492Ying Wang __o.width(__w / __rope_len); 1025951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 1026951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1027951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__is_simple && !__left && __pad_len > 0) 1028951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_fill(__o, __pad_len); 1029951a39d68df598db08dfced8b4707755864a0492Ying Wang __r.apply_to_pieces(0, __r.size(), __c); 1030951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__is_simple && __left && __pad_len > 0) 1031951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_fill(__o, __pad_len); 1032951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__is_simple) 1033951a39d68df598db08dfced8b4707755864a0492Ying Wang __o.width(__w); 1034951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1035951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 1036951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1037951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__is_simple) 1038951a39d68df598db08dfced8b4707755864a0492Ying Wang __o.width(__w); 1039951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 1040951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1041951a39d68df598db08dfced8b4707755864a0492Ying Wang return __o; 1042951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1043951a39d68df598db08dfced8b4707755864a0492Ying Wang 1044951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1045951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* 1046951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1047951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_flatten(_RopeRep* __r, size_t __start, size_t __len, 1048951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __buffer) 1049951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1050951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_flatten_char_consumer<_CharT> __c(__buffer); 1051951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_apply_to_pieces(__c, __r, __start, __start + __len); 1052951a39d68df598db08dfced8b4707755864a0492Ying Wang return(__buffer + __len); 1053951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1054951a39d68df598db08dfced8b4707755864a0492Ying Wang 1055951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1056951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t 1057951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1058951a39d68df598db08dfced8b4707755864a0492Ying Wang find(_CharT __pattern, size_t __start) const 1059951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1060951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_find_char_char_consumer<_CharT> __c(__pattern); 1061951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_apply_to_pieces(__c, this->_M_tree_ptr, __start, size()); 1062951a39d68df598db08dfced8b4707755864a0492Ying Wang size_type __result_pos = __start + __c._M_count; 1063951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __STL_OLD_ROPE_SEMANTICS 1064951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__result_pos == size()) 1065951a39d68df598db08dfced8b4707755864a0492Ying Wang __result_pos = npos; 1066951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1067951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result_pos; 1068951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1069951a39d68df598db08dfced8b4707755864a0492Ying Wang 1070951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1071951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* 1072951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1073951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_flatten(_RopeRep* __r, _CharT* __buffer) 1074951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1075951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __r) 1076951a39d68df598db08dfced8b4707755864a0492Ying Wang return __buffer; 1077951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__r->_M_tag) 1078951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1079951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 1080951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1081951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__r; 1082951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 1083951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __right = __c->_M_right; 1084951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __rest = _S_flatten(__left, __buffer); 1085951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_flatten(__right, __rest); 1086951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1087951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 1088951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1089951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*)__r; 1090951a39d68df598db08dfced8b4707755864a0492Ying Wang return copy_n(__l->_M_data, __l->_M_size, __buffer).second; 1091951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1092951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 1093951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 1094951a39d68df598db08dfced8b4707755864a0492Ying Wang // We don't yet do anything with substring nodes. 1095951a39d68df598db08dfced8b4707755864a0492Ying Wang // This needs to be fixed before ropefiles will work well. 1096951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1097951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeFunction* __f = (_RopeFunction*)__r; 1098951a39d68df598db08dfced8b4707755864a0492Ying Wang (*(__f->_M_fn))(0, __f->_M_size, __buffer); 1099951a39d68df598db08dfced8b4707755864a0492Ying Wang return __buffer + __f->_M_size; 1100951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1101951a39d68df598db08dfced8b4707755864a0492Ying Wang default: 1102951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 1103951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1104951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1105951a39d68df598db08dfced8b4707755864a0492Ying Wang 1106951a39d68df598db08dfced8b4707755864a0492Ying Wang // This needs work for _CharT != char 1107951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1108951a39d68df598db08dfced8b4707755864a0492Ying Wang void 1109951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1110951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_dump(_RopeRep* __r, int __indent) 1111951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1112951a39d68df598db08dfced8b4707755864a0492Ying Wang for (int __i = 0; __i < __indent; __i++) 1113951a39d68df598db08dfced8b4707755864a0492Ying Wang putchar(' '); 1114951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __r) 1115951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1116951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("NULL\n"); 1117951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 1118951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1119951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_S_concat == __r->_M_tag) 1120951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1121951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__r; 1122951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 1123951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __right = __c->_M_right; 1124951a39d68df598db08dfced8b4707755864a0492Ying Wang 1125951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef __GC 1126951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("Concatenation %p (depth = %d, len = %ld, %s balanced)\n", 1127951a39d68df598db08dfced8b4707755864a0492Ying Wang __r, __r->_M_depth, __r->_M_size, 1128951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_is_balanced? "" : "not"); 1129951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 1130951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("Concatenation %p (rc = %ld, depth = %d, " 1131951a39d68df598db08dfced8b4707755864a0492Ying Wang "len = %ld, %s balanced)\n", 1132951a39d68df598db08dfced8b4707755864a0492Ying Wang __r, __r->_M_ref_count, __r->_M_depth, __r->_M_size, 1133951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_is_balanced? "" : "not"); 1134951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1135951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_dump(__left, __indent + 2); 1136951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_dump(__right, __indent + 2); 1137951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 1138951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1139951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1140951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1141951a39d68df598db08dfced8b4707755864a0492Ying Wang char* __kind; 1142951a39d68df598db08dfced8b4707755864a0492Ying Wang 1143951a39d68df598db08dfced8b4707755864a0492Ying Wang switch (__r->_M_tag) 1144951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1145951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 1146951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind = "Leaf"; 1147951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 1148951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 1149951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind = "Function"; 1150951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 1151951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 1152951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind = "Function representing substring"; 1153951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 1154951a39d68df598db08dfced8b4707755864a0492Ying Wang default: 1155951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind = "(corrupted kind field!)"; 1156951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1157951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef __GC 1158951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("%s %p (depth = %d, len = %ld) ", 1159951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind, __r, __r->_M_depth, __r->_M_size); 1160951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 1161951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("%s %p (rc = %ld, depth = %d, len = %ld) ", 1162951a39d68df598db08dfced8b4707755864a0492Ying Wang __kind, __r, __r->_M_ref_count, __r->_M_depth, __r->_M_size); 1163951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1164951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_S_is_one_byte_char_type((_CharT*)0)) 1165951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1166951a39d68df598db08dfced8b4707755864a0492Ying Wang const int __max_len = 40; 1167951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __prefix(_S_substring(__r, 0, __max_len)); 1168951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT __buffer[__max_len + 1]; 1169951a39d68df598db08dfced8b4707755864a0492Ying Wang bool __too_big = __r->_M_size > __prefix->_M_size; 1170951a39d68df598db08dfced8b4707755864a0492Ying Wang 1171951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_flatten(__prefix, __buffer); 1172951a39d68df598db08dfced8b4707755864a0492Ying Wang __buffer[__prefix->_M_size] = _S_eos((_CharT*)0); 1173951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("%s%s\n", (char*)__buffer, 1174951a39d68df598db08dfced8b4707755864a0492Ying Wang __too_big? "...\n" : "\n"); 1175951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1176951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1177951a39d68df598db08dfced8b4707755864a0492Ying Wang printf("\n"); 1178951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1179951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1180951a39d68df598db08dfced8b4707755864a0492Ying Wang 1181951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1182951a39d68df598db08dfced8b4707755864a0492Ying Wang const unsigned long 1183951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1184951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_min_len[int(__detail::_S_max_rope_depth) + 1] = { 1185951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 0 */1, /* 1 */2, /* 2 */3, /* 3 */5, /* 4 */8, /* 5 */13, /* 6 */21, 1186951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 7 */34, /* 8 */55, /* 9 */89, /* 10 */144, /* 11 */233, /* 12 */377, 1187951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 13 */610, /* 14 */987, /* 15 */1597, /* 16 */2584, /* 17 */4181, 1188951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 18 */6765, /* 19 */10946, /* 20 */17711, /* 21 */28657, /* 22 */46368, 1189951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 23 */75025, /* 24 */121393, /* 25 */196418, /* 26 */317811, 1190951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 27 */514229, /* 28 */832040, /* 29 */1346269, /* 30 */2178309, 1191951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 31 */3524578, /* 32 */5702887, /* 33 */9227465, /* 34 */14930352, 1192951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 35 */24157817, /* 36 */39088169, /* 37 */63245986, /* 38 */102334155, 1193951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 39 */165580141, /* 40 */267914296, /* 41 */433494437, 1194951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 42 */701408733, /* 43 */1134903170, /* 44 */1836311903, 1195951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 45 */2971215073u }; 1196951a39d68df598db08dfced8b4707755864a0492Ying Wang // These are Fibonacci numbers < 2**32. 1197951a39d68df598db08dfced8b4707755864a0492Ying Wang 1198951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1199951a39d68df598db08dfced8b4707755864a0492Ying Wang typename rope<_CharT, _Alloc>::_RopeRep* 1200951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1201951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_balance(_RopeRep* __r) 1202951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1203951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __forest[int(__detail::_S_max_rope_depth) + 1]; 1204951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __result = 0; 1205951a39d68df598db08dfced8b4707755864a0492Ying Wang int __i; 1206951a39d68df598db08dfced8b4707755864a0492Ying Wang // Invariant: 1207951a39d68df598db08dfced8b4707755864a0492Ying Wang // The concatenation of forest in descending order is equal to __r. 1208951a39d68df598db08dfced8b4707755864a0492Ying Wang // __forest[__i]._M_size >= _S_min_len[__i] 1209951a39d68df598db08dfced8b4707755864a0492Ying Wang // __forest[__i]._M_depth = __i 1210951a39d68df598db08dfced8b4707755864a0492Ying Wang // References from forest are included in refcount. 1211951a39d68df598db08dfced8b4707755864a0492Ying Wang 1212951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i <= int(__detail::_S_max_rope_depth); ++__i) 1213951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i] = 0; 1214951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 1215951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1216951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_to_forest(__r, __forest); 1217951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __i <= int(__detail::_S_max_rope_depth); ++__i) 1218951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __forest[__i]) 1219951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1220951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1221951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __old(__result); 1222951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1223951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = _S_concat(__forest[__i], __result); 1224951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i]->_M_unref_nonnil(); 1225951a39d68df598db08dfced8b4707755864a0492Ying Wang#if !defined(__GC) && defined(__EXCEPTIONS) 1226951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i] = 0; 1227951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1228951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1229951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1230951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 1231951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1232951a39d68df598db08dfced8b4707755864a0492Ying Wang for(__i = 0; __i <= int(__detail::_S_max_rope_depth); __i++) 1233951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_unref(__forest[__i]); 1234951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 1235951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1236951a39d68df598db08dfced8b4707755864a0492Ying Wang 1237951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__result->_M_depth > int(__detail::_S_max_rope_depth)) 1238951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_length_error(__N("rope::_S_balance")); 1239951a39d68df598db08dfced8b4707755864a0492Ying Wang return(__result); 1240951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1241951a39d68df598db08dfced8b4707755864a0492Ying Wang 1242951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1243951a39d68df598db08dfced8b4707755864a0492Ying Wang void 1244951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1245951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_to_forest(_RopeRep* __r, _RopeRep** __forest) 1246951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1247951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__r->_M_is_balanced) 1248951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1249951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_leaf_to_forest(__r, __forest); 1250951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 1251951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1252951a39d68df598db08dfced8b4707755864a0492Ying Wang 1253951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1254951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__r; 1255951a39d68df598db08dfced8b4707755864a0492Ying Wang 1256951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_to_forest(__c->_M_left, __forest); 1257951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_to_forest(__c->_M_right, __forest); 1258951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1259951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1260951a39d68df598db08dfced8b4707755864a0492Ying Wang 1261951a39d68df598db08dfced8b4707755864a0492Ying Wang 1262951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1263951a39d68df598db08dfced8b4707755864a0492Ying Wang void 1264951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1265951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest) 1266951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1267951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __insertee; // included in refcount 1268951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __too_tiny = 0; // included in refcount 1269951a39d68df598db08dfced8b4707755864a0492Ying Wang int __i; // forest[0..__i-1] is empty 1270951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __s = __r->_M_size; 1271951a39d68df598db08dfced8b4707755864a0492Ying Wang 1272951a39d68df598db08dfced8b4707755864a0492Ying Wang for (__i = 0; __s >= _S_min_len[__i+1]/* not this bucket */; ++__i) 1273951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1274951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __forest[__i]) 1275951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1276951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1277951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __old(__too_tiny); 1278951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1279951a39d68df598db08dfced8b4707755864a0492Ying Wang __too_tiny = _S_concat_and_set_balanced(__forest[__i], 1280951a39d68df598db08dfced8b4707755864a0492Ying Wang __too_tiny); 1281951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i]->_M_unref_nonnil(); 1282951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i] = 0; 1283951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1284951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1285951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1286951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1287951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __old(__too_tiny); 1288951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1289951a39d68df598db08dfced8b4707755864a0492Ying Wang __insertee = _S_concat_and_set_balanced(__too_tiny, __r); 1290951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1291951a39d68df598db08dfced8b4707755864a0492Ying Wang // Too_tiny dead, and no longer included in refcount. 1292951a39d68df598db08dfced8b4707755864a0492Ying Wang // Insertee is live and included. 1293951a39d68df598db08dfced8b4707755864a0492Ying Wang for (;; ++__i) 1294951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1295951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __forest[__i]) 1296951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1297951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1298951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __old(__insertee); 1299951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1300951a39d68df598db08dfced8b4707755864a0492Ying Wang __insertee = _S_concat_and_set_balanced(__forest[__i], 1301951a39d68df598db08dfced8b4707755864a0492Ying Wang __insertee); 1302951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i]->_M_unref_nonnil(); 1303951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i] = 0; 1304951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1305951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__i == int(__detail::_S_max_rope_depth) 1306951a39d68df598db08dfced8b4707755864a0492Ying Wang || __insertee->_M_size < _S_min_len[__i+1]) 1307951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1308951a39d68df598db08dfced8b4707755864a0492Ying Wang __forest[__i] = __insertee; 1309951a39d68df598db08dfced8b4707755864a0492Ying Wang // refcount is OK since __insertee is now dead. 1310951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 1311951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1312951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1313951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1314951a39d68df598db08dfced8b4707755864a0492Ying Wang 1315951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1316951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT 1317951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1318951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_fetch(_RopeRep* __r, size_type __i) 1319951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1320951a39d68df598db08dfced8b4707755864a0492Ying Wang __GC_CONST _CharT* __cstr = __r->_M_c_string; 1321951a39d68df598db08dfced8b4707755864a0492Ying Wang 1322951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __cstr) 1323951a39d68df598db08dfced8b4707755864a0492Ying Wang return __cstr[__i]; 1324951a39d68df598db08dfced8b4707755864a0492Ying Wang for(;;) 1325951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1326951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__r->_M_tag) 1327951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1328951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 1329951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1330951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__r; 1331951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 1332951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len = __left->_M_size; 1333951a39d68df598db08dfced8b4707755864a0492Ying Wang 1334951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__i >= __left_len) 1335951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1336951a39d68df598db08dfced8b4707755864a0492Ying Wang __i -= __left_len; 1337951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __c->_M_right; 1338951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1339951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1340951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __left; 1341951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1342951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 1343951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 1344951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1345951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*)__r; 1346951a39d68df598db08dfced8b4707755864a0492Ying Wang return __l->_M_data[__i]; 1347951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1348951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 1349951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 1350951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1351951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeFunction* __f = (_RopeFunction*)__r; 1352951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT __result; 1353951a39d68df598db08dfced8b4707755864a0492Ying Wang 1354951a39d68df598db08dfced8b4707755864a0492Ying Wang (*(__f->_M_fn))(__i, 1, &__result); 1355951a39d68df598db08dfced8b4707755864a0492Ying Wang return __result; 1356951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1357951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1358951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1359951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1360951a39d68df598db08dfced8b4707755864a0492Ying Wang 1361951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1362951a39d68df598db08dfced8b4707755864a0492Ying Wang // Return a uniquely referenced character slot for the given 1363951a39d68df598db08dfced8b4707755864a0492Ying Wang // position, or 0 if that's not possible. 1364951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1365951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* 1366951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1367951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_fetch_ptr(_RopeRep* __r, size_type __i) 1368951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1369951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __clrstack[__detail::_S_max_rope_depth]; 1370951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __csptr = 0; 1371951a39d68df598db08dfced8b4707755864a0492Ying Wang 1372951a39d68df598db08dfced8b4707755864a0492Ying Wang for(;;) 1373951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1374951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__r->_M_ref_count > 1) 1375951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 1376951a39d68df598db08dfced8b4707755864a0492Ying Wang switch(__r->_M_tag) 1377951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1378951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_concat: 1379951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1380951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeConcatenation* __c = (_RopeConcatenation*)__r; 1381951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __left = __c->_M_left; 1382951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len = __left->_M_size; 1383951a39d68df598db08dfced8b4707755864a0492Ying Wang 1384951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__c->_M_c_string != 0) 1385951a39d68df598db08dfced8b4707755864a0492Ying Wang __clrstack[__csptr++] = __c; 1386951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__i >= __left_len) 1387951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1388951a39d68df598db08dfced8b4707755864a0492Ying Wang __i -= __left_len; 1389951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __c->_M_right; 1390951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1391951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1392951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __left; 1393951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1394951a39d68df598db08dfced8b4707755864a0492Ying Wang break; 1395951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_leaf: 1396951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1397951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*)__r; 1398951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__l->_M_c_string != __l->_M_data && __l->_M_c_string != 0) 1399951a39d68df598db08dfced8b4707755864a0492Ying Wang __clrstack[__csptr++] = __l; 1400951a39d68df598db08dfced8b4707755864a0492Ying Wang while (__csptr > 0) 1401951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1402951a39d68df598db08dfced8b4707755864a0492Ying Wang -- __csptr; 1403951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __d = __clrstack[__csptr]; 1404951a39d68df598db08dfced8b4707755864a0492Ying Wang __d->_M_free_c_string(); 1405951a39d68df598db08dfced8b4707755864a0492Ying Wang __d->_M_c_string = 0; 1406951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1407951a39d68df598db08dfced8b4707755864a0492Ying Wang return __l->_M_data + __i; 1408951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1409951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_function: 1410951a39d68df598db08dfced8b4707755864a0492Ying Wang case __detail::_S_substringfn: 1411951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 1412951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1413951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1414951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1415951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* __GC */ 1416951a39d68df598db08dfced8b4707755864a0492Ying Wang 1417951a39d68df598db08dfced8b4707755864a0492Ying Wang // The following could be implemented trivially using 1418951a39d68df598db08dfced8b4707755864a0492Ying Wang // lexicographical_compare_3way. 1419951a39d68df598db08dfced8b4707755864a0492Ying Wang // We do a little more work to avoid dealing with rope iterators for 1420951a39d68df598db08dfced8b4707755864a0492Ying Wang // flat strings. 1421951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1422951a39d68df598db08dfced8b4707755864a0492Ying Wang int 1423951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1424951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_compare (const _RopeRep* __left, const _RopeRep* __right) 1425951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1426951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __left_len; 1427951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __right_len; 1428951a39d68df598db08dfced8b4707755864a0492Ying Wang 1429951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __right) 1430951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0 != __left; 1431951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __left) 1432951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 1433951a39d68df598db08dfced8b4707755864a0492Ying Wang __left_len = __left->_M_size; 1434951a39d68df598db08dfced8b4707755864a0492Ying Wang __right_len = __right->_M_size; 1435951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __left->_M_tag) 1436951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1437951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __l = (_RopeLeaf*) __left; 1438951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __right->_M_tag) 1439951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1440951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __r = (_RopeLeaf*) __right; 1441951a39d68df598db08dfced8b4707755864a0492Ying Wang return lexicographical_compare_3way(__l->_M_data, 1442951a39d68df598db08dfced8b4707755864a0492Ying Wang __l->_M_data + __left_len, 1443951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_data, __r->_M_data 1444951a39d68df598db08dfced8b4707755864a0492Ying Wang + __right_len); 1445951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1446951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1447951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1448951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __rstart(__right, 0); 1449951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __rend(__right, __right_len); 1450951a39d68df598db08dfced8b4707755864a0492Ying Wang return lexicographical_compare_3way(__l->_M_data, __l->_M_data 1451951a39d68df598db08dfced8b4707755864a0492Ying Wang + __left_len, 1452951a39d68df598db08dfced8b4707755864a0492Ying Wang __rstart, __rend); 1453951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1454951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1455951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1456951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1457951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __lstart(__left, 0); 1458951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __lend(__left, __left_len); 1459951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == __right->_M_tag) 1460951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1461951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __r = (_RopeLeaf*) __right; 1462951a39d68df598db08dfced8b4707755864a0492Ying Wang return lexicographical_compare_3way(__lstart, __lend, 1463951a39d68df598db08dfced8b4707755864a0492Ying Wang __r->_M_data, __r->_M_data 1464951a39d68df598db08dfced8b4707755864a0492Ying Wang + __right_len); 1465951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1466951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1467951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1468951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __rstart(__right, 0); 1469951a39d68df598db08dfced8b4707755864a0492Ying Wang const_iterator __rend(__right, __right_len); 1470951a39d68df598db08dfced8b4707755864a0492Ying Wang return lexicographical_compare_3way(__lstart, __lend, 1471951a39d68df598db08dfced8b4707755864a0492Ying Wang __rstart, __rend); 1472951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1473951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1474951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1475951a39d68df598db08dfced8b4707755864a0492Ying Wang 1476951a39d68df598db08dfced8b4707755864a0492Ying Wang // Assignment to reference proxies. 1477951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1478951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_char_ref_proxy<_CharT, _Alloc>& 1479951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_char_ref_proxy<_CharT, _Alloc>:: 1480951a39d68df598db08dfced8b4707755864a0492Ying Wang operator=(_CharT __c) 1481951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1482951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __old = _M_root->_M_tree_ptr; 1483951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1484951a39d68df598db08dfced8b4707755864a0492Ying Wang // First check for the case in which everything is uniquely 1485951a39d68df598db08dfced8b4707755864a0492Ying Wang // referenced. In that case we can do this destructively. 1486951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __ptr = _My_rope::_S_fetch_ptr(__old, _M_pos); 1487951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __ptr) 1488951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1489951a39d68df598db08dfced8b4707755864a0492Ying Wang *__ptr = __c; 1490951a39d68df598db08dfced8b4707755864a0492Ying Wang return *this; 1491951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1492951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1493951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __left(_My_rope::_S_substring(__old, 0, _M_pos)); 1494951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __right(_My_rope::_S_substring(__old, _M_pos + 1, 1495951a39d68df598db08dfced8b4707755864a0492Ying Wang __old->_M_size)); 1496951a39d68df598db08dfced8b4707755864a0492Ying Wang _Self_destruct_ptr __result_left(_My_rope:: 1497951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_destr_concat_char_iter(__left, 1498951a39d68df598db08dfced8b4707755864a0492Ying Wang &__c, 1)); 1499951a39d68df598db08dfced8b4707755864a0492Ying Wang 1500951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __result = _My_rope::_S_concat(__result_left, __right); 1501951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __GC 1502951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::_S_unref(__old); 1503951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1504951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_root->_M_tree_ptr = __result; 1505951a39d68df598db08dfced8b4707755864a0492Ying Wang return *this; 1506951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1507951a39d68df598db08dfced8b4707755864a0492Ying Wang 1508951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1509951a39d68df598db08dfced8b4707755864a0492Ying Wang inline _Rope_char_ref_proxy<_CharT, _Alloc>:: 1510951a39d68df598db08dfced8b4707755864a0492Ying Wang operator _CharT() const 1511951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1512951a39d68df598db08dfced8b4707755864a0492Ying Wang if (_M_current_valid) 1513951a39d68df598db08dfced8b4707755864a0492Ying Wang return _M_current; 1514951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1515951a39d68df598db08dfced8b4707755864a0492Ying Wang return _My_rope::_S_fetch(_M_root->_M_tree_ptr, _M_pos); 1516951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1517951a39d68df598db08dfced8b4707755864a0492Ying Wang 1518951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1519951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_char_ptr_proxy<_CharT, _Alloc> 1520951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_char_ref_proxy<_CharT, _Alloc>:: 1521951a39d68df598db08dfced8b4707755864a0492Ying Wang operator&() const 1522951a39d68df598db08dfced8b4707755864a0492Ying Wang { return _Rope_char_ptr_proxy<_CharT, _Alloc>(*this); } 1523951a39d68df598db08dfced8b4707755864a0492Ying Wang 1524951a39d68df598db08dfced8b4707755864a0492Ying Wang template <class _CharT, class _Alloc> 1525951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1526951a39d68df598db08dfced8b4707755864a0492Ying Wang rope(size_t __n, _CharT __c, const allocator_type& __a) 1527951a39d68df598db08dfced8b4707755864a0492Ying Wang : _Base(__a) 1528951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1529951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT,_Alloc> __result; 1530951a39d68df598db08dfced8b4707755864a0492Ying Wang const size_t __exponentiate_threshold = 32; 1531951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __exponent; 1532951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __rest; 1533951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __rest_buffer; 1534951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep* __remainder; 1535951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc> __remainder_rope; 1536951a39d68df598db08dfced8b4707755864a0492Ying Wang 1537951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __n) 1538951a39d68df598db08dfced8b4707755864a0492Ying Wang return; 1539951a39d68df598db08dfced8b4707755864a0492Ying Wang 1540951a39d68df598db08dfced8b4707755864a0492Ying Wang __exponent = __n / __exponentiate_threshold; 1541951a39d68df598db08dfced8b4707755864a0492Ying Wang __rest = __n % __exponentiate_threshold; 1542951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __rest) 1543951a39d68df598db08dfced8b4707755864a0492Ying Wang __remainder = 0; 1544951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1545951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1546951a39d68df598db08dfced8b4707755864a0492Ying Wang __rest_buffer = this->_Data_allocate(_S_rounded_up_size(__rest)); 1547951a39d68df598db08dfced8b4707755864a0492Ying Wang __uninitialized_fill_n_a(__rest_buffer, __rest, __c, 1548951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 1549951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_cond_store_eos(__rest_buffer[__rest]); 1550951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 1551951a39d68df598db08dfced8b4707755864a0492Ying Wang { __remainder = _S_new_RopeLeaf(__rest_buffer, __rest, 1552951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); } 1553951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 1554951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1555951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::__STL_FREE_STRING(__rest_buffer, __rest, 1556951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 1557951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 1558951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1559951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1560951a39d68df598db08dfced8b4707755864a0492Ying Wang __remainder_rope._M_tree_ptr = __remainder; 1561951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__exponent != 0) 1562951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1563951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __base_buffer = 1564951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_Data_allocate(_S_rounded_up_size(__exponentiate_threshold)); 1565951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeLeaf* __base_leaf; 1566951a39d68df598db08dfced8b4707755864a0492Ying Wang rope __base_rope; 1567951a39d68df598db08dfced8b4707755864a0492Ying Wang __uninitialized_fill_n_a(__base_buffer, __exponentiate_threshold, __c, 1568951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 1569951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_cond_store_eos(__base_buffer[__exponentiate_threshold]); 1570951a39d68df598db08dfced8b4707755864a0492Ying Wang __try 1571951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1572951a39d68df598db08dfced8b4707755864a0492Ying Wang __base_leaf = _S_new_RopeLeaf(__base_buffer, 1573951a39d68df598db08dfced8b4707755864a0492Ying Wang __exponentiate_threshold, 1574951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 1575951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1576951a39d68df598db08dfced8b4707755864a0492Ying Wang __catch(...) 1577951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1578951a39d68df598db08dfced8b4707755864a0492Ying Wang _RopeRep::__STL_FREE_STRING(__base_buffer, 1579951a39d68df598db08dfced8b4707755864a0492Ying Wang __exponentiate_threshold, 1580951a39d68df598db08dfced8b4707755864a0492Ying Wang _M_get_allocator()); 1581951a39d68df598db08dfced8b4707755864a0492Ying Wang __throw_exception_again; 1582951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1583951a39d68df598db08dfced8b4707755864a0492Ying Wang __base_rope._M_tree_ptr = __base_leaf; 1584951a39d68df598db08dfced8b4707755864a0492Ying Wang if (1 == __exponent) 1585951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = __base_rope; 1586951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1587951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = power(__base_rope, __exponent, 1588951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_Concat_fn<_CharT, _Alloc>()); 1589951a39d68df598db08dfced8b4707755864a0492Ying Wang 1590951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 != __remainder) 1591951a39d68df598db08dfced8b4707755864a0492Ying Wang __result += __remainder_rope; 1592951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1593951a39d68df598db08dfced8b4707755864a0492Ying Wang else 1594951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = __remainder_rope; 1595951a39d68df598db08dfced8b4707755864a0492Ying Wang 1596951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_tree_ptr = __result._M_tree_ptr; 1597951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_tree_ptr->_M_ref_nonnil(); 1598951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1599951a39d68df598db08dfced8b4707755864a0492Ying Wang 1600951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Alloc> 1601951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT 1602951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>::_S_empty_c_str[1]; 1603951a39d68df598db08dfced8b4707755864a0492Ying Wang 1604951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Alloc> 1605951a39d68df598db08dfced8b4707755864a0492Ying Wang const _CharT* 1606951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>:: 1607951a39d68df598db08dfced8b4707755864a0492Ying Wang c_str() const 1608951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1609951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == this->_M_tree_ptr) 1610951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1611951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_empty_c_str[0] = _S_eos((_CharT*)0); // Possibly redundant, 1612951a39d68df598db08dfced8b4707755864a0492Ying Wang // but probably fast. 1613951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_empty_c_str; 1614951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1615951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_mutex_lock (&this->_M_tree_ptr->_M_c_string_lock); 1616951a39d68df598db08dfced8b4707755864a0492Ying Wang __GC_CONST _CharT* __result = this->_M_tree_ptr->_M_c_string; 1617951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == __result) 1618951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1619951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __s = size(); 1620951a39d68df598db08dfced8b4707755864a0492Ying Wang __result = this->_Data_allocate(__s + 1); 1621951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_flatten(this->_M_tree_ptr, __result); 1622951a39d68df598db08dfced8b4707755864a0492Ying Wang __result[__s] = _S_eos((_CharT*)0); 1623951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_tree_ptr->_M_c_string = __result; 1624951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1625951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_mutex_unlock (&this->_M_tree_ptr->_M_c_string_lock); 1626951a39d68df598db08dfced8b4707755864a0492Ying Wang return(__result); 1627951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1628951a39d68df598db08dfced8b4707755864a0492Ying Wang 1629951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _CharT, class _Alloc> 1630951a39d68df598db08dfced8b4707755864a0492Ying Wang const _CharT* rope<_CharT, _Alloc>:: 1631951a39d68df598db08dfced8b4707755864a0492Ying Wang replace_with_c_str() 1632951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1633951a39d68df598db08dfced8b4707755864a0492Ying Wang if (0 == this->_M_tree_ptr) 1634951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1635951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_empty_c_str[0] = _S_eos((_CharT*)0); 1636951a39d68df598db08dfced8b4707755864a0492Ying Wang return _S_empty_c_str; 1637951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1638951a39d68df598db08dfced8b4707755864a0492Ying Wang __GC_CONST _CharT* __old_c_string = this->_M_tree_ptr->_M_c_string; 1639951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__detail::_S_leaf == this->_M_tree_ptr->_M_tag 1640951a39d68df598db08dfced8b4707755864a0492Ying Wang && 0 != __old_c_string) 1641951a39d68df598db08dfced8b4707755864a0492Ying Wang return(__old_c_string); 1642951a39d68df598db08dfced8b4707755864a0492Ying Wang size_t __s = size(); 1643951a39d68df598db08dfced8b4707755864a0492Ying Wang _CharT* __result = this->_Data_allocate(_S_rounded_up_size(__s)); 1644951a39d68df598db08dfced8b4707755864a0492Ying Wang _S_flatten(this->_M_tree_ptr, __result); 1645951a39d68df598db08dfced8b4707755864a0492Ying Wang __result[__s] = _S_eos((_CharT*)0); 1646951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_tree_ptr->_M_unref_nonnil(); 1647951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_tree_ptr = _S_new_RopeLeaf(__result, __s, 1648951a39d68df598db08dfced8b4707755864a0492Ying Wang this->_M_get_allocator()); 1649951a39d68df598db08dfced8b4707755864a0492Ying Wang return(__result); 1650951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1651951a39d68df598db08dfced8b4707755864a0492Ying Wang 1652951a39d68df598db08dfced8b4707755864a0492Ying Wang // Algorithm specializations. More should be added. 1653951a39d68df598db08dfced8b4707755864a0492Ying Wang 1654951a39d68df598db08dfced8b4707755864a0492Ying Wang template<class _Rope_iterator> // was templated on CharT and Alloc 1655951a39d68df598db08dfced8b4707755864a0492Ying Wang void // VC++ workaround 1656951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_rotate(_Rope_iterator __first, 1657951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator __middle, 1658951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator __last) 1659951a39d68df598db08dfced8b4707755864a0492Ying Wang { 1660951a39d68df598db08dfced8b4707755864a0492Ying Wang typedef typename _Rope_iterator::value_type _CharT; 1661951a39d68df598db08dfced8b4707755864a0492Ying Wang typedef typename _Rope_iterator::_allocator_type _Alloc; 1662951a39d68df598db08dfced8b4707755864a0492Ying Wang 1663951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc>& __r(__first.container()); 1664951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc> __prefix = __r.substr(0, __first.index()); 1665951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc> __suffix = 1666951a39d68df598db08dfced8b4707755864a0492Ying Wang __r.substr(__last.index(), __r.size() - __last.index()); 1667951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc> __part1 = 1668951a39d68df598db08dfced8b4707755864a0492Ying Wang __r.substr(__middle.index(), __last.index() - __middle.index()); 1669951a39d68df598db08dfced8b4707755864a0492Ying Wang rope<_CharT, _Alloc> __part2 = 1670951a39d68df598db08dfced8b4707755864a0492Ying Wang __r.substr(__first.index(), __middle.index() - __first.index()); 1671951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __prefix; 1672951a39d68df598db08dfced8b4707755864a0492Ying Wang __r += __part1; 1673951a39d68df598db08dfced8b4707755864a0492Ying Wang __r += __part2; 1674951a39d68df598db08dfced8b4707755864a0492Ying Wang __r += __suffix; 1675951a39d68df598db08dfced8b4707755864a0492Ying Wang } 1676951a39d68df598db08dfced8b4707755864a0492Ying Wang 1677951a39d68df598db08dfced8b4707755864a0492Ying Wang#if !defined(__GNUC__) 1678951a39d68df598db08dfced8b4707755864a0492Ying Wang // Appears to confuse g++ 1679951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 1680951a39d68df598db08dfced8b4707755864a0492Ying Wang rotate(_Rope_iterator<char, __STL_DEFAULT_ALLOCATOR(char)> __first, 1681951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<char, __STL_DEFAULT_ALLOCATOR(char)> __middle, 1682951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<char, __STL_DEFAULT_ALLOCATOR(char)> __last) 1683951a39d68df598db08dfced8b4707755864a0492Ying Wang { _Rope_rotate(__first, __middle, __last); } 1684951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 1685951a39d68df598db08dfced8b4707755864a0492Ying Wang 1686951a39d68df598db08dfced8b4707755864a0492Ying Wang# if 0 1687951a39d68df598db08dfced8b4707755864a0492Ying Wang // Probably not useful for several reasons: 1688951a39d68df598db08dfced8b4707755864a0492Ying Wang // - for SGIs 7.1 compiler and probably some others, 1689951a39d68df598db08dfced8b4707755864a0492Ying Wang // this forces lots of rope<wchar_t, ...> instantiations, creating a 1690951a39d68df598db08dfced8b4707755864a0492Ying Wang // code bloat and compile time problem. (Fixed in 7.2.) 1691951a39d68df598db08dfced8b4707755864a0492Ying Wang // - wchar_t is 4 bytes wide on most UNIX platforms, making it 1692951a39d68df598db08dfced8b4707755864a0492Ying Wang // unattractive for unicode strings. Unsigned short may be a better 1693951a39d68df598db08dfced8b4707755864a0492Ying Wang // character type. 1694951a39d68df598db08dfced8b4707755864a0492Ying Wang inline void 1695951a39d68df598db08dfced8b4707755864a0492Ying Wang rotate(_Rope_iterator<wchar_t, __STL_DEFAULT_ALLOCATOR(char)> __first, 1696951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<wchar_t, __STL_DEFAULT_ALLOCATOR(char)> __middle, 1697951a39d68df598db08dfced8b4707755864a0492Ying Wang _Rope_iterator<wchar_t, __STL_DEFAULT_ALLOCATOR(char)> __last) 1698951a39d68df598db08dfced8b4707755864a0492Ying Wang { _Rope_rotate(__first, __middle, __last); } 1699951a39d68df598db08dfced8b4707755864a0492Ying Wang# endif 1700951a39d68df598db08dfced8b4707755864a0492Ying Wang 1701951a39d68df598db08dfced8b4707755864a0492Ying Wang_GLIBCXX_END_NAMESPACE 1702