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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
// iterator& operator++();
// void operator++(int);
#include <cassert>
#include <ranges>
#include <sstream>
#include "test_macros.h"
#include "../utils.h"
template <class CharT>
void test() {
// operator ++()
{
auto iss = make_string_stream<CharT>("1 2 345 ");
std::ranges::basic_istream_view<int, CharT> isv{iss};
auto it = isv.begin();
assert(*it == 1);
std::same_as<decltype(it)&> decltype(auto) it2 = ++it;
assert(&it2 == &it);
assert(*it2 == 2);
++it2;
assert(*it2 == 345);
++it2;
assert(it2 == isv.end());
}
// operator ++(int)
{
auto iss = make_string_stream<CharT>("1 2 345 ");
std::ranges::basic_istream_view<int, CharT> isv{iss};
auto it = isv.begin();
assert(*it == 1);
static_assert(std::same_as<decltype(it++), void>);
it++;
assert(*it == 2);
}
}
int main(int, char**) {
test<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test<wchar_t>();
#endif
return 0;
}
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