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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
// UNSUPPORTED: c++03, c++11, c++14, c++17
// friend bool operator==(const iterator& x, default_sentinel_t);
#include <cassert>
#include <ranges>
#include <sstream>
#include "test_macros.h"
#include "../utils.h"
template <class CharT>
void test() {
// fail to read
{
auto iss = make_string_stream<CharT>("a123 4");
std::ranges::basic_istream_view<int, CharT> isv{iss};
auto it = isv.begin();
assert(it == std::default_sentinel);
}
// iterate through the end
{
auto iss = make_string_stream<CharT>("123 ");
std::ranges::basic_istream_view<int, CharT> isv{iss};
auto it = isv.begin();
assert(it != std::default_sentinel);
++it;
assert(it == std::default_sentinel);
}
// empty stream
{
auto iss = make_string_stream<CharT>("");
std::ranges::basic_istream_view<int, CharT> isv{iss};
auto it = isv.begin();
assert(it == std::default_sentinel);
}
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}
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