1/* 2 * Copyright (c) 1999 3 * Silicon Graphics Computer Systems, Inc. 4 * 5 * Permission to use, copy, modify, distribute and sell this software 6 * and its documentation for any purpose is hereby granted without fee, 7 * provided that the above copyright notice appear in all copies and 8 * that both that copyright notice and this permission notice appear 9 * in supporting documentation. Silicon Graphics makes no 10 * representations about the suitability of this software for any 11 * purpose. It is provided "as is" without express or implied warranty. 12 */ 13 14// WARNING: This is an internal header file, included by other C++ 15// standard library headers. You should not attempt to use this header 16// file directly. 17 18#ifndef _STLP_INTERNAL_CTRAITS_FUNCTIONS_H 19#define _STLP_INTERNAL_CTRAITS_FUNCTIONS_H 20 21#ifndef _STLP_INTERNAL_FUNCTION_BASE_H 22# include <stl/_function_base.h> 23#endif 24 25// This file contains a few small adapters that allow a character 26// traits class to be used as a function object. 27 28_STLP_BEGIN_NAMESPACE 29 30_STLP_MOVE_TO_PRIV_NAMESPACE 31 32template <class _Traits> 33struct _Eq_traits 34 : public binary_function<typename _Traits::char_type, 35 typename _Traits::char_type, 36 bool> { 37 bool operator()(const typename _Traits::char_type& __x, 38 const typename _Traits::char_type& __y) const 39 { return _Traits::eq(__x, __y); } 40}; 41 42template <class _Traits> 43struct _Eq_char_bound 44 : public unary_function<typename _Traits::char_type, bool> { 45 typename _Traits::char_type __val; 46 _Eq_char_bound(typename _Traits::char_type __c) : __val(__c) {} 47 bool operator()(const typename _Traits::char_type& __x) const 48 { return _Traits::eq(__x, __val); } 49}; 50 51template <class _Traits> 52struct _Neq_char_bound 53 : public unary_function<typename _Traits::char_type, bool> 54{ 55 typename _Traits::char_type __val; 56 _Neq_char_bound(typename _Traits::char_type __c) : __val(__c) {} 57 bool operator()(const typename _Traits::char_type& __x) const 58 { return !_Traits::eq(__x, __val); } 59}; 60 61template <class _Traits> 62struct _Eq_int_bound 63 : public unary_function<typename _Traits::char_type, bool> { 64 typename _Traits::int_type __val; 65 66 _Eq_int_bound(typename _Traits::int_type __c) : __val(__c) {} 67 bool operator()(const typename _Traits::char_type& __x) const 68 { return _Traits::eq_int_type(_Traits::to_int_type(__x), __val); } 69}; 70 71#if 0 72template <class _Traits> 73struct _Lt_traits 74 : public binary_function<typename _Traits::char_type, 75 typename _Traits::char_type, 76 bool> { 77 bool operator()(const typename _Traits::char_type& __x, 78 const typename _Traits::char_type& __y) const 79 { return _Traits::lt(__x, __y); } 80}; 81#endif 82 83_STLP_MOVE_TO_STD_NAMESPACE 84 85_STLP_END_NAMESPACE 86 87#endif /* _STLP_INTERNAL_CTRAITS_FUNCTIONS_H */ 88 89// Local Variables: 90// mode:C++ 91// End: 92