cda469a59e
For an integer-class type we need to use an explicit conversion to size_t. libstdc++-v3/ChangeLog: PR libstdc++/115799 * include/bits/ranges_util.h (__find_fn): Make conversion from difference type ti size_t explicit. * testsuite/25_algorithms/find/bytes.cc: Check ranges::find with __gnu_test::test_contiguous_range. * testsuite/std/ranges/range.cc: Adjust expected difference_type for __gnu_test::test_contiguous_range. * testsuite/util/testsuite_iterators.h (contiguous_iterator_wrapper): Use __max_diff_type as difference type. (test_range::sentinel, test_sized_range_sized_sent::sentinel): Ensure that operator- returns difference_type.
94 lines
4 KiB
C++
94 lines
4 KiB
C++
// Copyright (C) 2019-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-do compile { target c++20 } }
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#include <ranges>
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#include <testsuite_iterators.h>
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static_assert( std::ranges::range<int(&)[1]> );
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static_assert( std::ranges::range<const int(&)[1]> );
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static_assert( std::ranges::range<int[1]> );
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static_assert( !std::ranges::range<int*> );
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using namespace __gnu_test;
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static_assert( std::ranges::range<test_contiguous_range<int>> );
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static_assert( std::ranges::range<test_contiguous_range<int>&> );
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static_assert( std::ranges::range<test_random_access_range<int>> );
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static_assert( std::ranges::range<test_random_access_range<int>&> );
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static_assert( std::ranges::range<test_bidirectional_range<int>> );
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static_assert( std::ranges::range<test_bidirectional_range<int>&> );
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static_assert( std::ranges::range<test_forward_range<int>> );
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static_assert( std::ranges::range<test_forward_range<int>&> );
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static_assert( std::ranges::range<test_input_range<int>> );
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static_assert( std::ranges::range<test_input_range<int>&> );
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static_assert( std::ranges::range<test_output_range<int>> );
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static_assert( std::ranges::range<test_output_range<int>&> );
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static_assert( std::ranges::range<test_contiguous_sized_range<int>> );
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static_assert( std::ranges::range<test_contiguous_sized_range<int>&> );
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static_assert( std::ranges::range<test_random_access_sized_range<int>> );
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static_assert( std::ranges::range<test_random_access_sized_range<int>&> );
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static_assert( std::ranges::range<test_bidirectional_sized_range<int>> );
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static_assert( std::ranges::range<test_bidirectional_sized_range<int>&> );
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static_assert( std::ranges::range<test_forward_sized_range<int>> );
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static_assert( std::ranges::range<test_forward_sized_range<int>&> );
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static_assert( std::ranges::range<test_input_sized_range<int>> );
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static_assert( std::ranges::range<test_input_sized_range<int>&> );
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static_assert( std::ranges::range<test_output_sized_range<int>> );
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static_assert( std::ranges::range<test_output_sized_range<int>&> );
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using std::same_as;
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using C = test_contiguous_range<char>;
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using R = test_random_access_range<char>;
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using I = test_input_range<char>;
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using O = test_output_range<char>;
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static_assert( same_as<std::ranges::iterator_t<C>,
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contiguous_iterator_wrapper<char>> );
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static_assert( same_as<std::ranges::iterator_t<O>,
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decltype(std::declval<O&>().begin())> );
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static_assert( same_as<std::ranges::sentinel_t<C>,
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decltype(std::declval<C&>().end())> );
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static_assert( same_as<std::ranges::sentinel_t<O>,
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decltype(std::declval<O&>().end())> );
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static_assert( ! same_as<std::ranges::range_difference_t<C>,
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std::ptrdiff_t> ); // __detail::__max_diff_type
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static_assert( same_as<std::ranges::range_difference_t<R>,
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std::ptrdiff_t> );
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static_assert( same_as<std::ranges::range_difference_t<O>,
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std::ptrdiff_t> );
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static_assert( same_as<std::ranges::range_reference_t<I>,
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char&> );
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static_assert( same_as<std::ranges::range_reference_t<O>,
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WritableObject<char>> );
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static_assert( same_as<std::ranges::range_rvalue_reference_t<I>,
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char&&> );
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static_assert( same_as<std::ranges::range_rvalue_reference_t<O>,
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WritableObject<char>> );
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// LWG 3860. range_common_reference_t is missing
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static_assert( same_as<std::ranges::range_common_reference_t<C>,
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char&> );
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static_assert( same_as<std::ranges::range_common_reference_t<I>,
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char&> );
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