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91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
// (C) Copyright John Maddock 2013
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/config for more information.
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// MACRO: BOOST_NO_CXX11_HDR_ATOMIC
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// TITLE: C++11 <atomic> header is either not present or too broken to be used
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// DESCRIPTION: The compiler does not support the C++11 header <atomic>
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#include <atomic>
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#if !defined(ATOMIC_BOOL_LOCK_FREE) || !defined(ATOMIC_CHAR_LOCK_FREE) || !defined(ATOMIC_CHAR16_T_LOCK_FREE) \
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|| !defined(ATOMIC_CHAR32_T_LOCK_FREE) || !defined(ATOMIC_WCHAR_T_LOCK_FREE) || !defined(ATOMIC_SHORT_LOCK_FREE)\
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|| !defined(ATOMIC_INT_LOCK_FREE) || !defined(ATOMIC_LONG_LOCK_FREE) || !defined(ATOMIC_LLONG_LOCK_FREE)\
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|| !defined(ATOMIC_POINTER_LOCK_FREE)
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# error "required macros not defined"
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#endif
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namespace boost_no_cxx11_hdr_atomic {
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int test()
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{
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std::memory_order m = static_cast<std::memory_order>(std::memory_order_relaxed | std::memory_order_consume | std::memory_order_acquire | std::memory_order_release
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| std::memory_order_acq_rel | std::memory_order_seq_cst);
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(void)m;
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std::atomic<int> a1;
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std::atomic<unsigned> a2;
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std::atomic<int*> a3;
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a1.is_lock_free();
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a1.store(1);
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a1.load();
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a1.exchange(2);
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int v;
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a1.compare_exchange_weak(v, 2, std::memory_order_relaxed, std::memory_order_relaxed);
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a1.compare_exchange_strong(v, 2, std::memory_order_relaxed, std::memory_order_relaxed);
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a1.fetch_add(2);
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a1.fetch_sub(3);
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a1.fetch_and(3);
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a1.fetch_or(1);
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a1.fetch_xor(1);
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a1++;
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++a1;
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a1--;
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--a1;
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a1 += 2;
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a1 -= 2;
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a1 &= 1;
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a1 |= 2;
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a1 ^= 3;
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a3.store(&v);
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a3.fetch_add(1);
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a3.fetch_sub(1);
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++a3;
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--a3;
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a3++;
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a3--;
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a3 += 1;
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a3 -= 1;
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std::atomic_is_lock_free(&a1);
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// This produces linker errors on Mingw32 for some reason, probably not required anyway for most uses??
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//std::atomic_init(&a1, 2);
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std::atomic_store(&a1, 3);
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std::atomic_store_explicit(&a1, 3, std::memory_order_relaxed);
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std::atomic_load(&a1);
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std::atomic_load_explicit(&a1, std::memory_order_relaxed);
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std::atomic_exchange(&a1, 3);
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std::atomic_compare_exchange_weak(&a1, &v, 2);
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std::atomic_compare_exchange_strong(&a1, &v, 2);
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std::atomic_compare_exchange_weak_explicit(&a1, &v, 2, std::memory_order_relaxed, std::memory_order_relaxed);
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std::atomic_compare_exchange_strong_explicit(&a1, &v, 2, std::memory_order_relaxed, std::memory_order_relaxed);
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std::atomic_flag f = ATOMIC_FLAG_INIT;
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f.test_and_set(std::memory_order_relaxed);
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f.test_and_set();
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f.clear(std::memory_order_relaxed);
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f.clear();
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std::atomic_thread_fence(std::memory_order_relaxed);
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std::atomic_signal_fence(std::memory_order_relaxed);
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return 0;
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}
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}
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