57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
92 lines
3.6 KiB
C++
92 lines
3.6 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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// <algorithm>
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// template<InputIterator Iter1, InputIterator Iter2>
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// requires HasEqualTo<Iter1::value_type, Iter2::value_type>
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// constexpr bool // constexpr after c++17
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// equal(Iter1 first1, Iter1 last1, Iter2 first2);
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//
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// Introduced in C++14:
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// template<InputIterator Iter1, InputIterator Iter2>
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// constexpr bool // constexpr after c++17
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// equal(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2);
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#include <algorithm>
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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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#if TEST_STD_VER > 17
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TEST_CONSTEXPR bool test_constexpr() {
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int ia[] = {1, 3, 6, 7};
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int ib[] = {1, 3};
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int ic[] = {1, 3, 5, 7};
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typedef input_iterator<int*> II;
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typedef bidirectional_iterator<int*> BI;
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return !std::equal(std::begin(ia), std::end(ia), std::begin(ic))
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&& !std::equal(std::begin(ia), std::end(ia), std::begin(ic), std::end(ic))
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&& std::equal(std::begin(ib), std::end(ib), std::begin(ic))
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&& !std::equal(std::begin(ib), std::end(ib), std::begin(ic), std::end(ic))
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&& std::equal(II(std::begin(ib)), II(std::end(ib)), II(std::begin(ic)))
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&& !std::equal(BI(std::begin(ib)), BI(std::end(ib)), BI(std::begin(ic)), BI(std::end(ic)))
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;
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}
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#endif
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int main()
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{
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int ia[] = {0, 1, 2, 3, 4, 5};
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const unsigned s = sizeof(ia)/sizeof(ia[0]);
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int ib[s] = {0, 1, 2, 5, 4, 5};
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assert(std::equal(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s),
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input_iterator<const int*>(ia)));
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#if TEST_STD_VER >= 14
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assert(std::equal(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s),
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input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s)));
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assert(std::equal(random_access_iterator<const int*>(ia),
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random_access_iterator<const int*>(ia+s),
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random_access_iterator<const int*>(ia),
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random_access_iterator<const int*>(ia+s)));
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#endif
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assert(!std::equal(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s),
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input_iterator<const int*>(ib)));
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#if TEST_STD_VER >= 14
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assert(!std::equal(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s),
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input_iterator<const int*>(ib),
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input_iterator<const int*>(ib+s)));
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assert(!std::equal(random_access_iterator<const int*>(ia),
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random_access_iterator<const int*>(ia+s),
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random_access_iterator<const int*>(ib),
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random_access_iterator<const int*>(ib+s)));
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assert(!std::equal(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s),
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input_iterator<const int*>(ia),
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input_iterator<const int*>(ia+s-1)));
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assert(!std::equal(random_access_iterator<const int*>(ia),
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random_access_iterator<const int*>(ia+s),
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random_access_iterator<const int*>(ia),
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random_access_iterator<const int*>(ia+s-1)));
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#endif
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#if TEST_STD_VER > 17
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static_assert(test_constexpr());
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#endif
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}
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