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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// <ratio>
//
// [ratio.general]/2
// Throughout subclause [ratio], the names of template parameters are
// used to express type requirements. If a template parameter is named
// R1 or R2, and the template argument is not a specialization of the
// ratio template, the program is ill-formed.
//
// Since all std::ratio_xxx_v variables use the same instantiation, only one
// error will be generated. These values are tested in a separate test.
#include <ratio>
struct invalid {
constexpr static int num = 1;
constexpr static int den = 1;
};
using valid = std::ratio<1, 1>;
void test() {
// equal
(void)std::ratio_equal_v<valid, valid>;
(void)std::ratio_equal_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_equal_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
// not_equal
(void)std::ratio_not_equal_v<valid, valid>;
(void)std::ratio_not_equal_v<invalid,
valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_not_equal_v<valid,
invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
// less
(void)std::ratio_less_v<valid, valid>;
(void)std::ratio_less_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_less_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
// less_equal
(void)std::ratio_less_equal_v<valid, valid>;
(void)std::ratio_less_equal_v<invalid,
valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_less_equal_v<valid,
invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
// greater
(void)std::ratio_greater_v<valid, valid>;
(void)std::ratio_greater_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_greater_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
// greater_equal
(void)std::ratio_greater_equal_v<valid, valid>;
(void)std::ratio_greater_equal_v<invalid,
valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}}
(void)std::ratio_greater_equal_v<valid,
invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}}
}
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