blob: faff926d3d67d78a9b293447cdaa68a5d542ca41 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<InputIterator Iter, class T>
// requires HasEqualTo<Iter::value_type, T>
// constexpr Iter // constexpr after C++17
// find(Iter first, Iter last, const T& value);
#include <algorithm>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
#if TEST_STD_VER > 17
TEST_CONSTEXPR bool test_constexpr() {
int ia[] = {1, 3, 5, 2, 4, 6};
int ib[] = {1, 2, 3, 4, 5, 6};
return (std::find(std::begin(ia), std::end(ia), 5) == ia+2)
&& (std::find(std::begin(ib), std::end(ib), 9) == ib+6)
;
}
#endif
int main()
{
int ia[] = {0, 1, 2, 3, 4, 5};
const unsigned s = sizeof(ia)/sizeof(ia[0]);
input_iterator<const int*> r = std::find(input_iterator<const int*>(ia),
input_iterator<const int*>(ia+s), 3);
assert(*r == 3);
r = std::find(input_iterator<const int*>(ia), input_iterator<const int*>(ia+s), 10);
assert(r == input_iterator<const int*>(ia+s));
#if TEST_STD_VER > 17
static_assert(test_constexpr());
#endif
}