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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// test ratio_subtract
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#include <ratio>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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typedef std::ratio<1, 1> R1;
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typedef std::ratio<1, 1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == 0 && R::den == 1, "");
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}
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{
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typedef std::ratio<1, 2> R1;
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typedef std::ratio<1, 1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == -1 && R::den == 2, "");
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}
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{
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typedef std::ratio<-1, 2> R1;
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typedef std::ratio<1, 1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == -3 && R::den == 2, "");
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}
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{
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typedef std::ratio<1, -2> R1;
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typedef std::ratio<1, 1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == -3 && R::den == 2, "");
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}
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{
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typedef std::ratio<1, 2> R1;
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typedef std::ratio<-1, 1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == 3 && R::den == 2, "");
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}
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{
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typedef std::ratio<1, 2> R1;
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typedef std::ratio<1, -1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == 3 && R::den == 2, "");
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}
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{
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typedef std::ratio<56987354, 467584654> R1;
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typedef std::ratio<544668, 22145> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == -126708206685271LL && R::den == 5177331081415LL, "");
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}
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{
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typedef std::ratio<0> R1;
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typedef std::ratio<0> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == 0 && R::den == 1, "");
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}
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{
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typedef std::ratio<1> R1;
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typedef std::ratio<0> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == 1 && R::den == 1, "");
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}
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{
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typedef std::ratio<0> R1;
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typedef std::ratio<1> R2;
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typedef std::ratio_subtract<R1, R2>::type R;
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static_assert(R::num == -1 && R::den == 1, "");
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}
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return 0;
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}
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