forked from OSchip/llvm-project
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <sstream>
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// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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// class basic_ostringstream
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// explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20
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// basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20
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// explicit basic_ostringstream(ios_base::openmode which); // C++20
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#include <sstream>
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#include <cassert>
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#include "test_macros.h"
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#if TEST_STD_VER >= 11
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#include "test_convertible.h"
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template <typename S>
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void test() {
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static_assert(test_convertible<S>(), "");
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static_assert(!test_convertible<S, std::ios_base::openmode>(), "");
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}
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#endif
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int main(int, char**)
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{
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{
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std::ostringstream ss;
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == "");
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}
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{
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std::ostringstream ss(std::ios_base::out);
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == "");
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}
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{
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std::wostringstream ss;
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == L"");
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}
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{
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std::wostringstream ss(std::ios_base::out);
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == L"");
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}
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#if TEST_STD_VER >= 11
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test<std::ostringstream>();
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test<std::wostringstream>();
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#endif
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return 0;
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}
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