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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template <class InputIterator, class Predicate>
// constexpr bool // constexpr after C++17
// all_of(InputIterator first, InputIterator last, Predicate pred);
#include <algorithm>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
struct test1
{
TEST_CONSTEXPR bool operator()(const int& i) const
{
return i % 2 == 0;
}
};
#if TEST_STD_VER > 17
TEST_CONSTEXPR bool test_constexpr() {
int ia[] = {2, 4, 6, 8};
int ib[] = {2, 4, 5, 8};
return std::all_of(std::begin(ia), std::end(ia), test1())
&& !std::all_of(std::begin(ib), std::end(ib), test1())
;
}
#endif
int main(int, char**)
{
{
int ia[] = {2, 4, 6, 8};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::all_of(cpp17_input_iterator<const int*>(ia),
cpp17_input_iterator<const int*>(ia + sa), test1()) == true);
assert(std::all_of(cpp17_input_iterator<const int*>(ia),
cpp17_input_iterator<const int*>(ia), test1()) == true);
}
{
const int ia[] = {2, 4, 5, 8};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::all_of(cpp17_input_iterator<const int*>(ia),
cpp17_input_iterator<const int*>(ia + sa), test1()) == false);
assert(std::all_of(cpp17_input_iterator<const int*>(ia),
cpp17_input_iterator<const int*>(ia), test1()) == true);
}
#if TEST_STD_VER > 17
static_assert(test_constexpr());
#endif
return 0;
}
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