tests/lib/libc/sync/cpp_atomic_ops_linkable.cc

   1 /* $NetBSD: cpp_atomic_ops_linkable.cc,v 1.3 2014/10/12 12:26:41 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Martin Husemann <martin@NetBSD.org>.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * This is a simple link-time test to verify all builtin atomic sync
  34  * operations for C++ <atomic> are available.
  35  */
  36
  37 #include <atomic>
  38 #include <machine/types.h>      // for __HAVE_ATOMIC64_OPS
  39
  40 template <class T>
  41 class ATest {
  42 public:
  43   ATest() : m_val(0)
  44   {
  45     m_val.exchange(std::atomic<T>(8));
  46     m_val--;
  47     m_val++;
  48     m_val ^= 0x0f;
  49     m_val &= 0x0f;
  50     m_val |= 2;
  51
  52     T tval(1), other(42);
  53     m_val.compare_exchange_weak(tval, other,
  54       std::memory_order_release, std::memory_order_relaxed);
  55   }
  56
  57 private:
  58   volatile std::atomic<T> m_val;
  59 };
  60
  61 int main(int argc, char **argv)
  62 {
  63   ATest<char>();
  64   ATest<signed char>();
  65   ATest<unsigned char>();
  66   ATest<short>();
  67   ATest<unsigned short>();
  68   ATest<int>();
  69   ATest<unsigned int>();
  70   ATest<long>();
  71   ATest<unsigned long>();
  72 #ifdef __HAVE_ATOMIC64_OPS
  73   ATest<long long>();
  74   ATest<unsigned long long>();
  75 #endif
  76   ATest<char16_t>();
  77   ATest<char32_t>();
  78   ATest<wchar_t>();
  79   ATest<int_least8_t>();
  80   ATest<uint_least8_t>();
  81   ATest<int_least16_t>();
  82   ATest<uint_least16_t>();
  83   ATest<int_least32_t>();
  84   ATest<uint_least32_t>();
  85 #ifdef __HAVE_ATOMIC64_OPS
  86   ATest<int_least64_t>();
  87   ATest<uint_least64_t>();
  88 #endif
  89   ATest<int_fast8_t>();
  90   ATest<uint_fast8_t>();
  91   ATest<int_fast16_t>();
  92   ATest<uint_fast16_t>();
  93   ATest<int_fast32_t>();
  94   ATest<uint_fast32_t>();
  95 #ifdef __HAVE_ATOMIC64_OPS
  96   ATest<int_fast64_t>();
  97   ATest<uint_fast64_t>();
  98 #endif
  99   ATest<intptr_t>();
 100   ATest<uintptr_t>();
 101   ATest<std::size_t>();
 102   ATest<std::ptrdiff_t>();
 103 #ifdef __HAVE_ATOMIC64_OPS
 104   ATest<intmax_t>();
 105   ATest<uintmax_t>();
 106 #endif
 107 }