(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_AtomicCASPtr

Set a pointer to a new value if it is currently an old value.

Header File

Defined in SDL_atomic.h

Syntax

SDL_bool SDL_AtomicCASPtr(void **a, void *oldval, void *newval);

Function Parameters

void **	a	a pointer to a pointer.
void *	oldval	the old pointer value.
void *	newval	the new pointer value.

Return Value

(SDL_bool) Returns SDL_TRUE if the pointer was set, SDL_FALSE otherwise.

Remarks

Note: If you don't know what this function is for, you shouldn't use it!

Version

This function is available since SDL 2.0.0.

See Also

• SDL_AtomicCAS
• SDL_AtomicGetPtr
• SDL_AtomicSetPtr

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CategoryAPI, CategoryAPIFunction, CategoryAtomic

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