| 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 | // Address Sanitizer doesn't instrument weak symbols on Linux. When a key |
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| 10 | // function is defined for bad_function_call's vtable, its typeinfo and vtable |
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| 11 | // will be defined as strong symbols in the library and weak symbols in other |
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| 12 | // translation units. Only the strong symbol will be instrumented, increasing |
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| 13 | // its size (due to the redzone) and leading to a serious ODR violation |
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| 14 | // resulting in a crash. |
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| 15 | // Some relevant bugs: |
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| 16 | // https://github.com/google/sanitizers/issues/1017 |
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| 17 | // https://github.com/google/sanitizers/issues/619 |
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| 18 | // https://github.com/google/sanitizers/issues/398 |
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| 19 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68016 |
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| 20 | // UNSUPPORTED: c++03, asan |
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| 21 | |
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| 22 | // <functional> |
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| 23 | |
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| 24 | // template<CopyConstructible Fn, CopyConstructible... Types> |
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| 25 | // unspecified bind(Fn, Types...); |
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| 26 | // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types> |
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| 27 | // unspecified bind(Fn, Types...); |
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| 28 | |
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| 29 | // https://llvm.org/PR16385 |
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| 30 | |
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| 31 | #include <functional> |
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| 32 | #include <cmath> |
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| 33 | #include <cassert> |
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| 34 | |
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| 35 | #include "test_macros.h" |
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| 36 | |
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| 37 | float _pow(float a, float b) |
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| 38 | { |
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| 39 | return std::pow(x: a, y: b); |
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| 40 | } |
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| 41 | |
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| 42 | int main(int, char**) |
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| 43 | { |
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| 44 | std::function<float(float, float)> fnc = _pow; |
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| 45 | auto task = std::bind(f&: fnc, args: 2.f, args: 4.f); |
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| 46 | auto task2(task); |
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| 47 | assert(task() == 16); |
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| 48 | assert(task2() == 16); |
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| 49 | |
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| 50 | return 0; |
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| 51 | } |
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| 52 | |
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