f642436cc2
AIX's system header provides these C++ overloads for compatibility with older XL C++ implementations, but they can be disabled by defining __LIBC_NO_CPP_MATH_OVERLOADS__ since AIX 7.2 TL 5 SP 3. Since D109078 landed clang will define this macro when using libc++ on AIX and we already run the lit tests with it too. This change will enable the overloads in libc++'s math.h and we'll continue to require the compiler to define the macro going forward. Reviewed By: ldionne, jsji, EricWF Differential Revision: https://reviews.llvm.org/D102172 co-authored-by: Jason Liu <jasonliu.development@gmail.com>
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Address Sanitizer doesn't instrument weak symbols on Linux. When a key
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// function is defined for bad_function_call's vtable, its typeinfo and vtable
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// will be defined as strong symbols in the library and weak symbols in other
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// translation units. Only the strong symbol will be instrumented, increasing
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// its size (due to the redzone) and leading to a serious ODR violation
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// resulting in a crash.
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// Some relevant bugs:
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// https://github.com/google/sanitizers/issues/1017
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// https://github.com/google/sanitizers/issues/619
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// https://github.com/google/sanitizers/issues/398
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// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68016
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// UNSUPPORTED: c++03, asan
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// <functional>
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// template<CopyConstructible Fn, CopyConstructible... Types>
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// unspecified bind(Fn, Types...);
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// template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
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// unspecified bind(Fn, Types...);
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// https://llvm.org/PR16385
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#include <functional>
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#include <cmath>
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#include <cassert>
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#include "test_macros.h"
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float _pow(float a, float b)
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{
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return std::pow(a, b);
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}
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int main(int, char**)
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{
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std::function<float(float, float)> fnc = _pow;
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auto task = std::bind(fnc, 2.f, 4.f);
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auto task2(task);
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assert(task() == 16);
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assert(task2() == 16);
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return 0;
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}
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