1b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner//===----------------------------------------------------------------------===// 2b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// 3b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// The LLVM Compiler Infrastructure 4b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// 5b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// This file is dual licensed under the MIT and the University of Illinois Open 6b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// Source Licenses. See LICENSE.TXT for details. 7b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// 8b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner//===----------------------------------------------------------------------===// 9b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 10b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// <ostream> 11b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 12b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// template <class charT, class traits = char_traits<charT> > 13b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// class basic_ostream; 14b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 15b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner// basic_ostream<charT,traits>& seekp(pos_type pos); 16b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 17b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner#include <ostream> 18b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner#include <cassert> 19b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 20b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turnerint seekpos_called = 0; 21b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 22b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turnertemplate <class CharT> 23b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turnerstruct testbuf 24b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner : public std::basic_streambuf<CharT> 25b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner{ 26b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner typedef std::basic_streambuf<CharT> base; 27b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner testbuf() {} 28b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 29b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turnerprotected: 30b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 31b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner typename base::pos_type 32b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner seekpos(typename base::pos_type sp, std::ios_base::openmode which) 33b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner { 34b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner ++seekpos_called; 35b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(which == std::ios_base::out); 36b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner return sp; 37b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner } 38b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner}; 39b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner 40b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turnerint main() 41b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner{ 42b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner { 43b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner std::ostream os((std::streambuf*)0); 44b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(&os.seekp(5) == &os); 45b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(seekpos_called == 0); 46b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner } 47b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner { 48b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner testbuf<char> sb; 49b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner std::ostream os(&sb); 50b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(&os.seekp(10) == &os); 51b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(seekpos_called == 1); 52b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(os.good()); 53b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(&os.seekp(-1) == &os); 54b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(seekpos_called == 2); 55b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner assert(os.fail()); 56b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner } 57b9a36c36f4b257de79bd656aefa7bfde40cedb0fDavid 'Digit' Turner} 58