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libcxx/test/std/utilities/function.objects/arithmetic.operations/modulus.pass.cpp

42 lines
1.1 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.
//
//===----------------------------------------------------------------------===//
// <functional>
// modulus
#include <functional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
typedef std::modulus<int> F;
const F f = F();
static_assert((std::is_same<int, F::first_argument_type>::value), "" );
static_assert((std::is_same<int, F::second_argument_type>::value), "" );
static_assert((std::is_same<int, F::result_type>::value), "" );
assert(f(36, 8) == 4);
#if TEST_STD_VER > 11
typedef std::modulus<> F2;
const F2 f2 = F2();
assert(f2(36, 8) == 4);
assert(f2(36L, 8) == 4);
assert(f2(36, 8L) == 4);
constexpr int foo = std::modulus<int> () (3, 2);
static_assert ( foo == 1, "" );
constexpr int bar = std::modulus<> () (3L, 2);
static_assert ( bar == 1, "" );
#endif
}