| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <functional> |
| |
| // class function<R(ArgTypes...)> |
| |
| // function& operator=(nullptr_t); |
| |
| #include <functional> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| struct A |
| { |
| static std::function<void()> global; |
| static bool cancel; |
| |
| ~A() { |
| DoNotOptimize(cancel); |
| if (cancel) |
| global = nullptr; |
| } |
| void operator()() {} |
| }; |
| |
| std::function<void()> A::global; |
| bool A::cancel = false; |
| |
| int main() |
| { |
| A::global = A(); |
| assert(A::global.target<A>()); |
| |
| // Check that we don't recurse in A::~A(). |
| A::cancel = true; |
| A::global = nullptr; |
| assert(!A::global.target<A>()); |
| } |