| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| |
| // divides |
| |
| #include <functional> |
| #include <type_traits> |
| #include <cassert> |
| |
| int main() |
| { |
| typedef std::divides<int> F; |
| const F f = F(); |
| static_assert((std::is_base_of<std::binary_function<int, int, int>, F>::value), ""); |
| assert(f(36, 4) == 9); |
| #if _LIBCPP_STD_VER > 11 |
| typedef std::divides<> F2; |
| const F2 f2 = F2(); |
| assert(f2(36, 4) == 9); |
| assert(f2(36.0, 4) == 9); |
| assert(f2(18, 4.0) == 4.5); // exact in binary |
| |
| constexpr int foo = std::divides<int> () (3, 2); |
| static_assert ( foo == 1, "" ); |
| |
| constexpr int bar = std::divides<> () (3.0, 2); |
| static_assert ( bar == 1, "" ); |
| #endif |
| } |