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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
//
//===----------------------------------------------------------------------===//
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
// <strstream>
// class istrstream
// explicit istrstream(const char* s, streamsize n);
#include <strstream>
#include <cassert>
#include <string>
#include "test_macros.h"
int main(int, char**)
{
{
const char buf[] = "123 4.5 dog";
std::istrstream in(buf, 7);
int i;
in >> i;
assert(i == 123);
double d;
in >> d;
assert(d == 4.5);
std::string s;
in >> s;
assert(s == "");
assert(in.eof());
assert(in.fail());
in.clear();
in.putback('5');
assert(!in.fail());
in.putback('5');
assert(in.fail());
assert(buf[5] == '.');
assert(buf[6] == '5');
}
return 0;
}
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