| 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 |
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| 10 | |
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| 11 | // check that <limits> functions are marked [[nodiscard]] |
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| 12 | |
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| 13 | #include <limits> |
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| 14 | |
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| 15 | #include "test_macros.h" |
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| 16 | |
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| 17 | void func() { |
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| 18 | // clang-format off |
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| 19 | // arithmetic |
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| 20 | std::numeric_limits<int>::min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 21 | std::numeric_limits<int>::max(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 22 | std::numeric_limits<int>::lowest(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 23 | std::numeric_limits<int>::epsilon(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 24 | std::numeric_limits<int>::round_error(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 25 | std::numeric_limits<int>::infinity(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 26 | std::numeric_limits<int>::quiet_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 27 | std::numeric_limits<int>::signaling_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 28 | std::numeric_limits<int>::denorm_min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 29 | // bool |
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| 30 | std::numeric_limits<bool>::min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 31 | std::numeric_limits<bool>::max(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 32 | std::numeric_limits<bool>::lowest(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 33 | std::numeric_limits<bool>::epsilon(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 34 | std::numeric_limits<bool>::round_error(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 35 | std::numeric_limits<bool>::infinity(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 36 | std::numeric_limits<bool>::quiet_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 37 | std::numeric_limits<bool>::signaling_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 38 | std::numeric_limits<bool>::denorm_min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 39 | // float |
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| 40 | std::numeric_limits<float>::min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 41 | std::numeric_limits<float>::max(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 42 | std::numeric_limits<float>::lowest(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 43 | std::numeric_limits<float>::epsilon(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 44 | std::numeric_limits<float>::round_error(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 45 | std::numeric_limits<float>::infinity(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 46 | std::numeric_limits<float>::quiet_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 47 | std::numeric_limits<float>::signaling_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 48 | std::numeric_limits<float>::denorm_min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 49 | // double |
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| 50 | std::numeric_limits<double>::min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 51 | std::numeric_limits<double>::max(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 52 | std::numeric_limits<double>::lowest(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 53 | std::numeric_limits<double>::epsilon(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 54 | std::numeric_limits<double>::round_error(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 55 | std::numeric_limits<double>::infinity(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 56 | std::numeric_limits<double>::quiet_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 57 | std::numeric_limits<double>::signaling_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 58 | std::numeric_limits<double>::denorm_min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 59 | // long double |
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| 60 | std::numeric_limits<long double>::min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 61 | std::numeric_limits<long double>::max(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 62 | std::numeric_limits<long double>::lowest(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 63 | std::numeric_limits<long double>::epsilon(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 64 | std::numeric_limits<long double>::round_error(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 65 | std::numeric_limits<long double>::infinity(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 66 | std::numeric_limits<long double>::quiet_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 67 | std::numeric_limits<long double>::signaling_NaN(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 68 | std::numeric_limits<long double>::denorm_min(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
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| 69 | // clang-format on |
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| 70 | } |
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| 71 | |
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