| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS |
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| 10 | |
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| 11 | // <functional> |
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| 12 | |
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| 13 | // divides |
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| 14 | |
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| 15 | #include <functional> |
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| 16 | #include <type_traits> |
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| 17 | #include <cassert> |
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| 18 | |
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| 19 | #include "test_macros.h" |
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| 20 | |
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| 21 | int main(int, char**) |
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| 22 | { |
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| 23 | typedef std::divides<int> F; |
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| 24 | const F f = F(); |
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| 25 | #if TEST_STD_VER <= 17 |
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| 26 | static_assert((std::is_same<int, F::first_argument_type>::value), "" ); |
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| 27 | static_assert((std::is_same<int, F::second_argument_type>::value), "" ); |
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| 28 | static_assert((std::is_same<int, F::result_type>::value), "" ); |
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| 29 | #endif |
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| 30 | assert(f(36, 4) == 9); |
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| 31 | #if TEST_STD_VER > 11 |
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| 32 | typedef std::divides<> F2; |
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| 33 | const F2 f2 = F2(); |
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| 34 | assert(f2(36, 4) == 9); |
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| 35 | assert(f2(36.0, 4) == 9); |
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| 36 | assert(f2(18, 4.0) == 4.5); // exact in binary |
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| 37 | |
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| 38 | constexpr int foo = std::divides<int> () (3, 2); |
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| 39 | static_assert ( foo == 1, "" ); |
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| 40 | |
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| 41 | constexpr double bar = std::divides<> () (3.0, 2); |
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| 42 | static_assert ( bar == 1.5, "" ); // exact in binary |
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| 43 | #endif |
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| 44 | |
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| 45 | return 0; |
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| 46 | } |
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| 47 | |
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