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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 T, StrictWeakOrder<auto, T> Compare>
// requires !SameType<T, Compare> && CopyConstructible<Compare>
// const T&
// max(const T& a, const T& b, Compare comp);
#include <algorithm>
#include <functional>
#include <cassert>
#include "test_macros.h"
template <class T, class C>
void
test(const T& a, const T& b, C c, const T& x)
{
assert(&std::max(a, b, c) == &x);
}
int main(int, char**)
{
{
int x = 0;
int y = 0;
test(x, y, std::greater<int>(), x);
test(y, x, std::greater<int>(), y);
}
{
int x = 0;
int y = 1;
test(x, y, std::greater<int>(), x);
test(y, x, std::greater<int>(), x);
}
{
int x = 1;
int y = 0;
test(x, y, std::greater<int>(), y);
test(y, x, std::greater<int>(), y);
}
#if TEST_STD_VER >= 14
{
constexpr int x = 1;
constexpr int y = 0;
static_assert(std::max(x, y, std::greater<int>()) == y, "" );
static_assert(std::max(y, x, std::greater<int>()) == y, "" );
}
#endif
return 0;
}
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