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62 lines
1.2 KiB
C++
62 lines
1.2 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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// <ostream>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_ostream;
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// template <class charT, class traits>
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// basic_ostream<charT,traits>& flush(basic_ostream<charT,traits>& os);
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#include <ostream>
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#include <cassert>
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#include "test_macros.h"
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int sync_called = 0;
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template <class CharT>
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class testbuf
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: public std::basic_streambuf<CharT>
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{
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public:
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testbuf()
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{
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}
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protected:
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virtual int
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sync()
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{
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++sync_called;
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return 0;
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}
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};
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int main(int, char**)
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{
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{
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testbuf<char> sb;
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std::ostream os(&sb);
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flush(os);
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assert(sync_called == 1);
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assert(os.good());
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}
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{
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testbuf<wchar_t> sb;
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std::wostream os(&sb);
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flush(os);
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assert(sync_called == 2);
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assert(os.good());
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}
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return 0;
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}
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