1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <sstream> 11 12 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 13 // class basic_ostringstream 14 15 // void swap(basic_ostringstream& rhs); 16 17 #include <sstream> 18 #include <cassert> 19 main()20int main() 21 { 22 { 23 std::ostringstream ss0(" 123 456"); 24 std::ostringstream ss; 25 swap(ss, ss0); 26 assert(ss.rdbuf() != 0); 27 assert(ss.good()); 28 assert(ss.str() == " 123 456"); 29 int i = 234; 30 ss << i << ' ' << 567; 31 assert(ss.str() == "234 5676"); 32 ss0 << i << ' ' << 567; 33 assert(ss0.str() == "234 567"); 34 } 35 { 36 std::wostringstream ss0(L" 123 456"); 37 std::wostringstream ss; 38 swap(ss, ss0); 39 assert(ss.rdbuf() != 0); 40 assert(ss.good()); 41 assert(ss.str() == L" 123 456"); 42 int i = 234; 43 ss << i << ' ' << 567; 44 assert(ss.str() == L"234 5676"); 45 ss0 << i << ' ' << 567; 46 assert(ss0.str() == L"234 567"); 47 } 48 } 49