1 /* Test generic atomic routines for proper function calling. */
2 /* { dg-do run } */
3 /* { dg-options "-std=c11 -pedantic-errors" } */
4
5 #include <stdatomic.h>
6
7 extern void abort ();
8 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
9
10 typedef struct test {
11 int array[10];
12 } test_struct;
13
14 test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
15 test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
16 _Atomic test_struct a;
17 test_struct b;
18
19 int size = sizeof (test_struct);
20 /* Test for consistency on sizes 1, 2, 4, 8, 16 and 32. */
21 int
main()22 main ()
23 {
24 test_struct c;
25
26 atomic_store_explicit (&a, zero, memory_order_relaxed);
27 if (memcmp (&a, &zero, size))
28 abort ();
29
30 c = atomic_exchange_explicit (&a, ones, memory_order_seq_cst);
31 if (memcmp (&c, &zero, size))
32 abort ();
33 if (memcmp (&a, &ones, size))
34 abort ();
35
36 b = atomic_load_explicit (&a, memory_order_relaxed);
37 if (memcmp (&b, &ones, size))
38 abort ();
39
40 if (!atomic_compare_exchange_strong_explicit (&a, &b, zero, memory_order_seq_cst, memory_order_acquire))
41 abort ();
42 if (memcmp (&a, &zero, size))
43 abort ();
44
45 if (atomic_compare_exchange_weak_explicit (&a, &b, ones, memory_order_seq_cst, memory_order_acquire))
46 abort ();
47 if (memcmp (&b, &zero, size))
48 abort ();
49
50 return 0;
51 }
52
53