328b52d675
* doc/doxygen/user.cfg.in: Add new header. * include/Makefile.am: Add new header. * include/Makefile.in: Regenerate. * include/precompiled/stdc++.h: Include new header. * include/std/ranges: New header. (ranges::sentinel_t, ranges::range_value_t, ranges::range_reference_t) (ranges::range_rvalue_reference_t, ranges::sized_range) (ranges::output_range, ranges::input_ranges, ranges::forward_range) (ranges::bidirectional_range, ranges::random_access_range) (ranges::contiguous_range, ranges::common::range): Define. * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Check that disabled_sized_sentinel can be specialized. * testsuite/std/ranges/access/begin.cc: Include <ranges> instead of <iterator>. * testsuite/std/ranges/access/cbegin.cc: Likewise. * testsuite/std/ranges/access/cdata.cc: Likewise. * testsuite/std/ranges/access/cend.cc: Likewise. * testsuite/std/ranges/access/crbegin.cc: Likewise. * testsuite/std/ranges/access/crend.cc: Likewise. * testsuite/std/ranges/access/data.cc: Likewise. * testsuite/std/ranges/access/empty.cc: Likewise. * testsuite/std/ranges/access/end.cc: Likewise. * testsuite/std/ranges/access/end_neg.cc: Likewise. * testsuite/std/ranges/access/rbegin.cc: Likewise. * testsuite/std/ranges/access/rend.cc: Likewise. * testsuite/std/ranges/access/size.cc: Likewise. * testsuite/std/ranges/access/size_neg.cc: Likewise. * testsuite/std/ranges/headers/ranges/synopsis.cc: New test. * testsuite/std/ranges/range.cc: New test. * testsuite/std/ranges/refinements.cc: New test. * testsuite/std/ranges/sized.cc: New test. * testsuite/util/testsuite_iterators.h: Add aliases for range types. (output_iterator_wrapper::WritableObject::operator=): Add const qualifier so that output_iterator_wrapper satisfies writable. From-SVN: r277697
76 lines
3.8 KiB
C++
76 lines
3.8 KiB
C++
// Copyright (C) 2019 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-options "-std=gnu++2a" }
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// { dg-do compile { target c++2a } }
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#include <ranges>
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#include <testsuite_iterators.h>
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static_assert( std::ranges::sized_range<int(&)[1]> );
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static_assert( std::ranges::sized_range<const int(&)[1]> );
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static_assert( std::ranges::sized_range<int[1]> );
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static_assert( !std::ranges::sized_range<int*> );
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using namespace __gnu_test;
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// ranges::size(r) uses (end(r) - begin(r))
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static_assert( std::ranges::sized_range<test_contiguous_range<int>> );
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static_assert( std::ranges::sized_range<test_contiguous_range<int>&> );
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static_assert( std::ranges::sized_range<test_random_access_range<int>> );
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static_assert( std::ranges::sized_range<test_random_access_range<int>&> );
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// ranges::size(r) is invalid, (end(r) - begin(r)) requires sized sentinel
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static_assert(!std::ranges::sized_range<test_bidirectional_range<int>> );
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static_assert(!std::ranges::sized_range<test_bidirectional_range<int>&> );
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static_assert(!std::ranges::sized_range<test_forward_range<int>> );
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static_assert(!std::ranges::sized_range<test_forward_range<int>&> );
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static_assert(!std::ranges::sized_range<test_input_range<int>> );
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static_assert(!std::ranges::sized_range<test_input_range<int>&> );
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static_assert(!std::ranges::sized_range<test_output_range<int>> );
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static_assert(!std::ranges::sized_range<test_output_range<int>&> );
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// ranges::size(r) uses r.size()
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static_assert( std::ranges::sized_range<test_contiguous_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_contiguous_sized_range<int>&> );
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static_assert( std::ranges::sized_range<test_random_access_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_random_access_sized_range<int>&> );
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static_assert( std::ranges::sized_range<test_bidirectional_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_bidirectional_sized_range<int>&> );
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static_assert( std::ranges::sized_range<test_forward_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_forward_sized_range<int>&> );
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static_assert( std::ranges::sized_range<test_input_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_input_sized_range<int>&> );
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static_assert( std::ranges::sized_range<test_output_sized_range<int>> );
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static_assert( std::ranges::sized_range<test_output_sized_range<int>&> );
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using long_range = __gnu_test::test_random_access_sized_range<long>;
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template<> constexpr bool std::ranges::disable_sized_range<long_range> = true;
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// Despite being disabled, this is still a sized_range because ranges::size(r)
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// works, by using (ranges::end(r) - ranges::begin(r)).
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static_assert( std::ranges::sized_range<long_range> );
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static_assert( std::ranges::sized_range<long_range&> );
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using short_range = __gnu_test::test_bidirectional_sized_range<short>;
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template<> constexpr bool std::ranges::disable_sized_range<short_range> = true;
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// This is not a sized range because ranges::size(r) cannot use member size,
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// or ADL size, and (ranges::end(r) - ranges::begin(r)) is ill-formed for
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// bidirectional iterators.
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static_assert( !std::ranges::sized_range<short_range> );
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static_assert( !std::ranges::sized_range<short_range&> );
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