1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <sstream> 10 11 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 12 // class basic_ostringstream 13 14 // explicit basic_ostringstream(ios_base::openmode which = ios_base::in); 15 16 #include <sstream> 17 #include <cassert> 18 19 #include "test_macros.h" 20 main(int,char **)21int main(int, char**) 22 { 23 { 24 std::ostringstream ss; 25 assert(ss.rdbuf() != 0); 26 assert(ss.good()); 27 assert(ss.str() == ""); 28 } 29 { 30 std::ostringstream ss(std::ios_base::out); 31 assert(ss.rdbuf() != 0); 32 assert(ss.good()); 33 assert(ss.str() == ""); 34 } 35 { 36 std::wostringstream ss; 37 assert(ss.rdbuf() != 0); 38 assert(ss.good()); 39 assert(ss.str() == L""); 40 } 41 { 42 std::wostringstream ss(std::ios_base::out); 43 assert(ss.rdbuf() != 0); 44 assert(ss.good()); 45 assert(ss.str() == L""); 46 } 47 48 return 0; 49 } 50