| 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 | // <ratio> |
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| 10 | // |
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| 11 | // [ratio.general]/2 |
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| 12 | // Throughout subclause [ratio], the names of template parameters are |
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| 13 | // used to express type requirements. If a template parameter is named |
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| 14 | // R1 or R2, and the template argument is not a specialization of the |
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| 15 | // ratio template, the program is ill-formed. |
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| 16 | // |
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| 17 | // Since all std::ratio_xxx_v variables use the same instantiation, only one |
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| 18 | // error will be generated. These values are tested in a separate test. |
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| 19 | |
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| 20 | #include <ratio> |
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| 21 | |
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| 22 | struct invalid { |
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| 23 | static const int num = 1; |
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| 24 | static const int den = 1; |
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| 25 | }; |
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| 26 | |
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| 27 | using valid = std::ratio<1, 1>; |
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| 28 | |
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| 29 | namespace equal { |
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| 30 | using valid_valid = std::ratio_equal<valid, valid>::type; |
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| 31 | using invalid_valid = |
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| 32 | std::ratio_equal<invalid, valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 33 | using valid_invalid = |
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| 34 | std::ratio_equal<valid, invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 35 | } // namespace equal |
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| 36 | |
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| 37 | namespace not_equal { |
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| 38 | using valid_valid = std::ratio_not_equal<valid, valid>::type; |
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| 39 | using invalid_valid = |
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| 40 | std::ratio_not_equal<invalid, |
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| 41 | valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 42 | using valid_invalid = |
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| 43 | std::ratio_not_equal<valid, |
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| 44 | invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 45 | } // namespace not_equal |
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| 46 | |
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| 47 | namespace less { |
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| 48 | using valid_valid = std::ratio_less<valid, valid>::type; |
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| 49 | using invalid_valid = |
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| 50 | std::ratio_less<invalid, valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 51 | using valid_invalid = |
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| 52 | std::ratio_less<valid, invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 53 | } // namespace less |
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| 54 | |
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| 55 | namespace less_equal { |
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| 56 | using valid_valid = std::ratio_less_equal<valid, valid>::type; |
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| 57 | using invalid_valid = |
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| 58 | std::ratio_less_equal<invalid, |
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| 59 | valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 60 | using valid_invalid = |
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| 61 | std::ratio_less_equal<valid, |
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| 62 | invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 63 | } // namespace less_equal |
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| 64 | |
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| 65 | namespace greater { |
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| 66 | using valid_valid = std::ratio_greater<valid, valid>::type; |
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| 67 | using invalid_valid = |
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| 68 | std::ratio_greater<invalid, valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 69 | using valid_invalid = |
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| 70 | std::ratio_greater<valid, invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 71 | } // namespace greater |
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| 72 | |
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| 73 | namespace greater_equal { |
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| 74 | using valid_valid = std::ratio_greater_equal<valid, valid>::type; |
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| 75 | using invalid_valid = |
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| 76 | std::ratio_greater_equal<invalid, |
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| 77 | valid>::type; // expected-error@*:* {{R1 to be a specialisation of the ratio template}} |
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| 78 | using valid_invalid = |
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| 79 | std::ratio_greater_equal<valid, |
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| 80 | invalid>::type; // expected-error@*:* {{R2 to be a specialisation of the ratio template}} |
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| 81 | } // namespace greater_equal |
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| 82 | |
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