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