50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: libcpp-no-concepts
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// UNSUPPORTED: gcc-10
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// class std::ranges::subrange;
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#include <ranges>
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#include <cassert>
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "../subrange_test_types.h"
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template<size_t I, class S>
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concept GetInvocable = requires {
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std::get<I>(std::declval<S>());
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};
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static_assert( GetInvocable<0, std::ranges::subrange<int*>>);
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static_assert( GetInvocable<1, std::ranges::subrange<int*>>);
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static_assert(!GetInvocable<2, std::ranges::subrange<int*>>);
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static_assert(!GetInvocable<3, std::ranges::subrange<int*>>);
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constexpr bool test() {
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std::ranges::subrange<int*> a(globalBuff, globalBuff + 8, 8);
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assert(std::get<0>(a) == a.begin());
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assert(std::get<1>(a) == a.end());
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assert(a.begin() == std::get<0>(std::move(a)));
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std::ranges::subrange<int*> b(globalBuff, globalBuff + 8, 8);
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assert(b.end() == std::get<1>(std::move(b)));
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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