| 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 | // <functional> |
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| 10 | |
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| 11 | // unary_negate |
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| 12 | // deprecated in C++17 |
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| 13 | |
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| 14 | // UNSUPPORTED: c++03, c++11, c++14 |
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| 15 | // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS |
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| 16 | |
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| 17 | #include <functional> |
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| 18 | |
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| 19 | struct Predicate { |
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| 20 | typedef int argument_type; |
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| 21 | bool operator()(argument_type) const { return true; } |
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| 22 | }; |
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| 23 | |
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| 24 | void test() { |
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| 25 | std::unary_negate<Predicate> f((Predicate())); // expected-warning {{'unary_negate<Predicate>' is deprecated}} |
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| 26 | (void)f; |
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| 27 | } |
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| 28 | |
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