1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // Address Sanitizer doesn't instrument weak symbols on Linux. When a key
10 // function is defined for bad_function_call's vtable, its typeinfo and vtable
11 // will be defined as strong symbols in the library and weak symbols in other
12 // translation units. Only the strong symbol will be instrumented, increasing
13 // its size (due to the redzone) and leading to a serious ODR violation
14 // resulting in a crash.
15 // Some relevant bugs:
16 // https://github.com/google/sanitizers/issues/1017
17 // https://github.com/google/sanitizers/issues/619
18 // https://github.com/google/sanitizers/issues/398
19 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68016
20 // UNSUPPORTED: c++03, asan
21
22 // <functional>
23
24 // template<CopyConstructible Fn, CopyConstructible... Types>
25 // unspecified bind(Fn, Types...);
26 // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
27 // unspecified bind(Fn, Types...);
28
29 // https://llvm.org/PR16385
30
31 #include <functional>
32 #include <cmath>
33 #include <cassert>
34
35 #include "test_macros.h"
36
_pow(float a,float b)37 float _pow(float a, float b)
38 {
39 return std::pow(a, b);
40 }
41
main(int,char **)42 int main(int, char**)
43 {
44 std::function<float(float, float)> fnc = _pow;
45 auto task = std::bind(fnc, 2.f, 4.f);
46 auto task2(task);
47 assert(task() == 16);
48 assert(task2() == 16);
49
50 return 0;
51 }
52