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Function `core.stdc.stdatomic.atomic_init`

Initializes an atomic variable, the destination should not have any expression associated with it prior to this call.


						
				void atomic_init(A, C)(
				
  scope ref return shared(A) obj,
				
  C desired
				

				) @trusted;

We use an ref parameter instead of a pointer for destination in an attempt to communicate to the compiler that it initializers. We use ref and not out because out would write to a shared value, which is not allowed with -preview=nosharedaccess.

Example

shared int val;
atomic_init(val, 2);

// Avoid compiler-generated code that would store `float.init` (a NaN),
// which `-preview=nosharedaccess` treats as shared access.
shared float valF = 0.0f;
atomic_init(valF, 3.2f);

Authors

Richard (Rikki) Andrew cattermole

License

Boost License 1.0