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#include <stdatomic.h>
int printf(const char*,...);
#if defined test_atomic_compare_exchange
int main()
{
_Atomic int a = 12;
int b = 77;
int r;
atomic_store(&a, b + 0);
r = atomic_compare_exchange_strong(&a, &b, 99);
printf("%d %d %d\n", r, a, b);
atomic_store(&a, b + 3);
r = atomic_compare_exchange_strong(&a, &b, 99);
printf("%d %d %d\n", r, a, b);
return 0;
}
#elif defined test_atomic_store
int main()
{
int _Atomic i;
int r;
atomic_store(&i, 12);
r = atomic_fetch_add(&i, i);
printf("r = %d, i = %d\n", r, i);
}
#elif defined test_atomic_store_pointer
typedef struct { char c[4]; } c4;
int main()
{
int i = 1;
int _Atomic *p = &i;
int k = 2;
atomic_store(&p, &k);
printf("*p = %d\n", *p);
}
#elif defined test_atomic_store_struct
typedef struct { char c[4]; } c4;
int main()
{
c4 _Atomic p;
c4 v = { 1,2,3,4 };
atomic_store(&p, v);
printf("%d %d %d %d\n", p.c[0], p.c[1], p.c[2], p.c[3]);
}
#elif defined test_atomic_error_1
int main()
{
int _Atomic i;
atomic_load(i);
}
#elif defined test_atomic_error_2
int main()
{
struct { char c[3]; } _Atomic c3;
atomic_load(&c3);
}
#elif defined test_atomic_error_3
int main()
{
_Atomic int *p = 0;
atomic_fetch_add(&p, 1);
}
#elif defined test_atomic_error_4
int main()
{
int _Atomic i = 1;
char c = 2;
atomic_compare_exchange_strong(&i, &c, 0);
}
#elif defined test_atomic_warn_1
int main()
{
size_t _Atomic i = 1;
/* assignment to integer from pointer */
atomic_store(&i, &i);
}
#elif defined test_atomic_warn_2
int main()
{
int i = 1;
char c = 2;
int _Atomic *p = &i;
/* assignment from incompatible pointer */
atomic_store(&p, &c);
}
#elif defined test_atomic_warn_3
int main()
{
int const i = 1;
/* assignment to read-only -location */
atomic_fetch_add(&i, 2);
}
#endif
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