| 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 | // UNSUPPORTED: c++03, c++11, c++14 |
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| 10 | |
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| 11 | // <ratio> |
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| 12 | // |
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| 13 | // [ratio.general]/2 |
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| 14 | // Throughout subclause [ratio], the names of template parameters are |
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| 15 | // used to express type requirements. If a template parameter is named |
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| 16 | // R1 or R2, and the template argument is not a specialization of the |
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| 17 | // ratio template, the program is ill-formed. |
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| 18 | // |
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| 19 | // Since all std::ratio_xxx_v variables use the same instantiation, only one |
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| 20 | // error will be generated. These values are tested in a separate test. |
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| 21 | |
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| 22 | #include <ratio> |
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| 23 | |
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| 24 | struct invalid { |
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| 25 | constexpr static int num = 1; |
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| 26 | constexpr static int den = 1; |
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| 27 | }; |
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| 28 | |
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| 29 | using valid = std::ratio<1, 1>; |
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| 30 | |
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| 31 | void test() { |
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| 32 | // equal |
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| 33 | (void)std::ratio_equal_v<valid, valid>; |
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| 34 | (void)std::ratio_equal_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 35 | (void)std::ratio_equal_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 36 | |
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| 37 | // not_equal |
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| 38 | (void)std::ratio_not_equal_v<valid, valid>; |
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| 39 | (void)std::ratio_not_equal_v<invalid, |
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| 40 | valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 41 | (void)std::ratio_not_equal_v<valid, |
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| 42 | invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 43 | |
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| 44 | // less |
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| 45 | (void)std::ratio_less_v<valid, valid>; |
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| 46 | (void)std::ratio_less_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 47 | (void)std::ratio_less_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 48 | |
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| 49 | // less_equal |
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| 50 | (void)std::ratio_less_equal_v<valid, valid>; |
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| 51 | (void)std::ratio_less_equal_v<invalid, |
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| 52 | valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 53 | (void)std::ratio_less_equal_v<valid, |
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| 54 | invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 55 | |
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| 56 | // greater |
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| 57 | (void)std::ratio_greater_v<valid, valid>; |
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| 58 | (void)std::ratio_greater_v<invalid, valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 59 | (void)std::ratio_greater_v<valid, invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 60 | |
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| 61 | // greater_equal |
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| 62 | (void)std::ratio_greater_equal_v<valid, valid>; |
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| 63 | |
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| 64 | (void)std::ratio_greater_equal_v<invalid, |
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| 65 | valid>; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 66 | |
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| 67 | (void)std::ratio_greater_equal_v<valid, |
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| 68 | invalid>; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 69 | } |
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| 70 | |
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