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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: no-localization
// test:
// template <class charT, class traits, size_t N>
// basic_istream<charT, traits>&
// operator>>(basic_istream<charT, traits>& is, bitset<N>& x);
#include <bitset>
#include <sstream>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
{
std::istringstream in("01011010");
std::bitset<8> b;
in >> b;
assert(b.to_ulong() == 0x5A);
}
{
// Make sure that input-streaming an empty bitset does not cause the
// failbit to be set (LWG 3199).
std::istringstream in("01011010");
std::bitset<0> b;
in >> b;
assert(b.to_string() == "");
assert(!in.bad());
assert(!in.fail());
assert(!in.eof());
assert(in.good());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
std::stringbuf sb;
std::istream is(&sb);
is.exceptions(std::ios::failbit);
bool threw = false;
try {
std::bitset<8> b;
is >> b;
} catch (std::ios::failure const&) {
threw = true;
}
assert(!is.bad());
assert(is.fail());
assert(is.eof());
assert(threw);
}
{
std::stringbuf sb;
std::istream is(&sb);
is.exceptions(std::ios::eofbit);
bool threw = false;
try {
std::bitset<8> b;
is >> b;
} catch (std::ios::failure const&) {
threw = true;
}
assert(!is.bad());
assert(is.fail());
assert(is.eof());
assert(threw);
}
#endif // TEST_HAS_NO_EXCEPTIONS
return 0;
}
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