1  /* Test atomic_store routines for existence and proper execution on
       2     4-byte values with each valid memory model.  */
       3  /* { dg-do run } */
       4  /* { dg-options "-std=c11 -pedantic-errors" } */
       5  
       6  #include <stdatomic.h>
       7  
       8  extern void abort (void);
       9  
      10  _Atomic int v;
      11  int count;
      12  
      13  int
      14  main ()
      15  {
      16    v = 0;
      17    count = 0;
      18  
      19    atomic_init (&v, count + 1);
      20    if (v != ++count)
      21      abort ();
      22  
      23    atomic_store_explicit (&v, count + 1, memory_order_relaxed);
      24    if (v != ++count)
      25      abort ();
      26  
      27    atomic_store_explicit (&v, count + 1, memory_order_release);
      28    if (v != ++count)
      29      abort ();
      30  
      31    atomic_store_explicit (&v, count + 1, memory_order_seq_cst);
      32    if (v != ++count)
      33      abort ();
      34  
      35    count++;
      36  
      37    atomic_store (&v, count);
      38    if (v != count)
      39      abort ();
      40  
      41    return 0;
      42  }
      43