52 lines
1.8 KiB
C++
52 lines
1.8 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 "../subrange_test_types.h"
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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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static_assert( std::is_constructible_v<ForwardSubrange, ForwardBorrowedRange>); // Default case.
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static_assert(!std::is_constructible_v<ForwardSubrange, ForwardRange>); // Not borrowed.
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// Iter convertible to sentinel (pointer) type.
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static_assert( std::is_constructible_v<ConvertibleForwardSubrange, ConvertibleForwardBorrowedRange>);
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// Where neither iter or sentinel are pointers, but they are different.
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static_assert( std::is_constructible_v<DifferentSentinelSubrange, ForwardBorrowedRangeDifferentSentinel>);
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static_assert( std::is_constructible_v<DifferentSentinelWithSizeMemberSubrange, DifferentSentinelWithSizeMember>);
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constexpr bool test() {
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ForwardSubrange a{ForwardBorrowedRange()};
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assert(a.begin().base() == globalBuff);
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assert(a.end().base() == globalBuff + 8);
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ConvertibleForwardSubrange b{ConvertibleForwardBorrowedRange()};
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assert(b.begin() == globalBuff);
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assert(b.end() == globalBuff + 8);
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DifferentSentinelSubrange c{ForwardBorrowedRangeDifferentSentinel()};
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assert(c.begin().base() == globalBuff);
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assert(c.end().value == globalBuff + 8);
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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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