//===----------------------------------------------------------------------===//
//
// 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_istream;
// basic_istream<charT,traits>& operator>>(basic_ios<charT,traits>&
// (*pf)(basic_ios<charT,traits>&));
#include <istream>
#include <cassert>
#include "test_macros.h"
int f_called = 0;
template <class CharT>
std::basic_ios<CharT>&
f(std::basic_ios<CharT>& is)
{
++f_called;
return is;
}
int main(int, char**)
{
{
std::istream is((std::streambuf*)0);
is >> f;
assert(f_called == 1);
}
return 0;
}