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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
//
//===----------------------------------------------------------------------===//
// <streambuf>
// template <class charT, class traits = char_traits<charT> >
// class basic_streambuf;
// int_type pbackfail(int_type c = traits::eof());
#include <streambuf>
#include <cassert>
#include "test_macros.h"
int pbackfail_called = 0;
struct test
: public std::basic_streambuf<char>
{
test() {}
};
int main(int, char**)
{
test t;
assert(t.sputbackc('A') == -1);
return 0;
}
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