//===----------------------------------------------------------------------===// // // 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. // //===----------------------------------------------------------------------===// // Copyright (C) 2011 Vicente J. Botet Escriba // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // // class mutex; // mutex& operator=(const mutex&) = delete; #include #include int main() { boost::mutex m0; boost::mutex m1(m0); } void remove_unused_warning() { //../../../boost/system/error_code.hpp:214:36: warning: Ôboost::system::posix_categoryÕ defined but not used [-Wunused-variable] //../../../boost/system/error_code.hpp:215:36: warning: Ôboost::system::errno_ecatÕ defined but not used [-Wunused-variable] //../../../boost/system/error_code.hpp:216:36: warning: Ôboost::system::native_ecatÕ defined but not used [-Wunused-variable] (void)boost::system::posix_category; (void)boost::system::errno_ecat; (void)boost::system::native_ecat; }