/* $NetBSD: cpp_atomic_ops_linkable.cc,v 1.5 2017/01/11 12:10:26 joerg Exp $ */ /*- * Copyright (c) 2014 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Martin Husemann . * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * This is a simple link-time test to verify all builtin atomic sync * operations for C++ are available. */ #include #include // for __HAVE_ATOMIC64_OPS template class ATest { public: ATest() : m_val(0) { m_val.exchange(std::atomic(8)); m_val--; m_val++; m_val ^= 0x0f; m_val &= 0x0f; m_val |= 2; T tval(1), other(42); m_val.compare_exchange_weak(tval, other, std::memory_order_release, std::memory_order_relaxed); } private: volatile std::atomic m_val; }; int main(int argc, char **argv) { ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); #ifdef __HAVE_ATOMIC64_OPS ATest(); ATest(); #endif ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); #ifdef __HAVE_ATOMIC64_OPS ATest(); ATest(); #endif ATest(); ATest(); ATest(); ATest(); ATest(); ATest(); #ifdef __HAVE_ATOMIC64_OPS ATest(); ATest(); #endif ATest(); ATest(); ATest(); ATest(); #ifdef __HAVE_ATOMIC64_OPS ATest(); ATest(); #endif }