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Compares the input to the comparison value, atomically.
Syntax
void InterlockedCompareStore(
in UINT dest,
in UINT compare_value,
in UINT value
);
Parameters
-
dest [in]
-
Type: UINT
The destination address.
-
compare_value [in]
-
Type: UINT
The comparison value.
-
value [in]
-
Type: UINT
The input value.
Return value
This function does not return a value.
Remarks
This operation can only be performed on int or uint typed resources and shared memory variables. There are three possible uses for this function. The first is when R is a shared memory variable type. In this case, the function performs the operation on the shared memory register referenced by dest. The second scenario is when R is a resource variable type. In this scenario, the function performs the operation on the resource location referenced by dest. Finally, the third scenario is when R is a local variable type. In this scenario, the function reduces to the operation performed using local operations.
This function is supported in the following types of shaders:
| VS | HS | DS | GS | PS | CS |
|---|---|---|---|---|---|
| x | x | x | x | x | x |
See also