1// Copyright (C) 2014-2015 Free Software Foundation, Inc. 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 3, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING3. If not see 16// <http://www.gnu.org/licenses/>. 17 18// { dg-options "-std=gnu++11" } 19// { dg-require-fileio "" } 20 21// 27.9.1.12 Assign and swap [ostringstream.assign] 22 23#include <fstream> 24#include <string> 25#include <testsuite_hooks.h> 26 27using namespace std; 28 29string const name = "ofstream-assign.txt"; 30 31void 32test01() 33{ 34 string s1 = "Let the whole outside world"; 35 string s2 = " consist of a long paper tape."; 36 ofstream f(name, ios::trunc); 37 VERIFY( f.is_open() ); 38 f << s1; 39 { 40 ofstream f1; 41 f1 = std::move(f); 42 VERIFY( f1.is_open() ); 43 VERIFY( !f.is_open() ); 44 f1 << s2; 45 f1.swap(f); 46 VERIFY( !f1.is_open() ); 47 VERIFY( f.is_open() ); 48 f << s1; 49 swap(f1, f); 50 f1 << s2; 51 } 52 ifstream in(name); 53 string result; 54 getline(in, result); 55 VERIFY( result == (s1 + s2 + s1 + s2) ); 56} 57 58void 59test02() 60{ 61#ifdef _GLIBCXX_USE_WCHAR_T 62 std::wofstream s0, s; 63 s = std::move(s0); 64 s.swap(s0); 65 swap(s, s0); 66#endif 67} 68 69int 70main() 71{ 72 test01(); 73 test02(); 74} 75