1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// On Windows Clang bugs out when both __declspec and __attribute__ are present, 11// the processing goes awry preventing the definition of the types. 12// XFAIL: LIBCXX-WINDOWS-FIXME 13 14// UNSUPPORTED: libcpp-has-no-threads 15// REQUIRES: thread-safety 16 17// <mutex> 18 19// MODULES_DEFINES: _LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS 20#define _LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS 21 22#include <mutex> 23 24std::mutex m; 25 26int main() { 27 m.lock(); 28} // expected-error {{mutex 'm' is still held at the end of function}} 29