C++ (Cpp) __c11_atomic_compare_exchange_strongの例

コード例 #1

ファイル: locks.c プロジェクト: aglab2/darwin-xnu

uint32_t
hw_compare_and_store(uint32_t oldval, uint32_t newval, volatile uint32_t *dest)
{
	ALIGN_TEST(dest,uint32_t);
	return __c11_atomic_compare_exchange_strong(ATOMIC_CAST(uint32_t,dest), &oldval, newval,
			memory_order_acq_rel_smp, memory_order_relaxed);
}

コード例 #2

ファイル: atomic-ops.c プロジェクト: Chxnew/minix

  __atomic_fetch_sub(I, 3, memory_order_seq_cst);
  __atomic_fetch_sub(P, 3, memory_order_seq_cst);
  __atomic_fetch_sub(D, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer or pointer}}
  __atomic_fetch_sub(s1, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer or pointer}}

  __c11_atomic_fetch_and(i, 1, memory_order_seq_cst);
  __c11_atomic_fetch_and(p, 1, memory_order_seq_cst); // expected-error {{must be a pointer to atomic integer}}
  __c11_atomic_fetch_and(d, 1, memory_order_seq_cst); // expected-error {{must be a pointer to atomic integer}}

  __atomic_fetch_and(i, 3, memory_order_seq_cst); // expected-error {{pointer to integer}}
  __atomic_fetch_or(I, 3, memory_order_seq_cst);
  __atomic_fetch_xor(P, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}
  __atomic_fetch_or(D, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}
  __atomic_fetch_and(s1, 3, memory_order_seq_cst); // expected-error {{must be a pointer to integer}}

  _Bool cmpexch_1 = __c11_atomic_compare_exchange_strong(i, 0, 1, memory_order_seq_cst, memory_order_seq_cst);
  _Bool cmpexch_2 = __c11_atomic_compare_exchange_strong(p, 0, (int*)1, memory_order_seq_cst, memory_order_seq_cst);
  _Bool cmpexch_3 = __c11_atomic_compare_exchange_strong(d, (int*)0, 1, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{incompatible pointer types}}

  _Bool cmpexch_4 = __atomic_compare_exchange_n(I, I, 5, 1, memory_order_seq_cst, memory_order_seq_cst);
  _Bool cmpexch_5 = __atomic_compare_exchange_n(I, P, 5, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{; dereference with *}}
  _Bool cmpexch_6 = __atomic_compare_exchange_n(I, I, P, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{passing 'int **' to parameter of type 'int'}}

  _Bool cmpexch_7 = __atomic_compare_exchange(I, I, 5, 1, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{passing 'int' to parameter of type 'int *'}}
  _Bool cmpexch_8 = __atomic_compare_exchange(I, P, I, 0, memory_order_seq_cst, memory_order_seq_cst); // expected-warning {{; dereference with *}}
  _Bool cmpexch_9 = __atomic_compare_exchange(I, I, I, 0, memory_order_seq_cst, memory_order_seq_cst);

  const volatile int flag_k = 0;
  volatile int flag = 0;
  (void)(int)__atomic_test_and_set(&flag_k, memory_order_seq_cst); // expected-warning {{passing 'const volatile int *' to parameter of type 'volatile void *'}}
  (void)(int)__atomic_test_and_set(&flag, memory_order_seq_cst);