62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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<ForwardIterator Iter, class T>
|
|
// requires OutputIterator<Iter, Iter::reference>
|
|
// && OutputIterator<Iter, const T&>
|
|
// && HasEqualTo<Iter::value_type, T>
|
|
// constexpr void // constexpr after C++17
|
|
// replace(Iter first, Iter last, const T& old_value, const T& new_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[] = {0, 1, 2, 3, 4};
|
|
const int expected[] = {0, 1, 5, 3, 4};
|
|
|
|
std::replace(std::begin(ia), std::end(ia), 2, 5);
|
|
return std::equal(std::begin(ia), std::end(ia), std::begin(expected), std::end(expected))
|
|
;
|
|
}
|
|
#endif
|
|
|
|
template <class Iter>
|
|
void
|
|
test()
|
|
{
|
|
int ia[] = {0, 1, 2, 3, 4};
|
|
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
|
|
std::replace(Iter(ia), Iter(ia+sa), 2, 5);
|
|
assert(ia[0] == 0);
|
|
assert(ia[1] == 1);
|
|
assert(ia[2] == 5);
|
|
assert(ia[3] == 3);
|
|
assert(ia[4] == 4);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test<forward_iterator<int*> >();
|
|
test<bidirectional_iterator<int*> >();
|
|
test<random_access_iterator<int*> >();
|
|
test<int*>();
|
|
|
|
#if TEST_STD_VER > 17
|
|
static_assert(test_constexpr());
|
|
#endif
|
|
}
|