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 // <atomic>
11 
12 // typedef enum memory_order
13 // {
14 //     memory_order_relaxed, memory_order_consume, memory_order_acquire,
15 //     memory_order_release, memory_order_acq_rel, memory_order_seq_cst
16 // } memory_order;
17 
18 #include <atomic>
19 #include <cassert>
20 
main()21 int main()
22 {
23     assert(std::memory_order_relaxed == 0);
24     assert(std::memory_order_consume == 1);
25     assert(std::memory_order_acquire == 2);
26     assert(std::memory_order_release == 3);
27     assert(std::memory_order_acq_rel == 4);
28     assert(std::memory_order_seq_cst == 5);
29     std::memory_order o = std::memory_order_seq_cst;
30     assert(o == 5);
31 }
32