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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
//
//===----------------------------------------------------------------------===//
// <istream>
// template <class charT, class traits = char_traits<charT> >
// class basic_iostream;
// explicit basic_iostream(basic_streambuf<charT,traits>* sb);
#include <istream>
#include <cassert>
#include "test_macros.h"
template <class CharT>
struct testbuf
: public std::basic_streambuf<CharT>
{
testbuf() {}
};
int main(int, char**)
{
{
testbuf<char> sb;
std::basic_iostream<char> is(&sb);
assert(is.rdbuf() == &sb);
assert(is.tie() == 0);
assert(is.fill() == ' ');
assert(is.rdstate() == is.goodbit);
assert(is.exceptions() == is.goodbit);
assert(is.flags() == (is.skipws | is.dec));
assert(is.precision() == 6);
assert(is.getloc().name() == "C");
assert(is.gcount() == 0);
}
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
testbuf<wchar_t> sb;
std::basic_iostream<wchar_t> is(&sb);
assert(is.rdbuf() == &sb);
assert(is.tie() == 0);
assert(is.fill() == L' ');
assert(is.rdstate() == is.goodbit);
assert(is.exceptions() == is.goodbit);
assert(is.flags() == (is.skipws | is.dec));
assert(is.precision() == 6);
assert(is.getloc().name() == "C");
assert(is.gcount() == 0);
}
#endif
return 0;
}
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