Function SDL_CompareAndSwapAtomicU32

pub unsafe extern "C" fn SDL_CompareAndSwapAtomicU32(
    a: *mut SDL_AtomicU32,
    oldval: u32,
    newval: u32,
) -> bool

Available on crate feature dep_sdl3 only.

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

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

Parameters

• a: a pointer to an SDL_AtomicU32 variable to be modified.
• oldval: the old value.
• newval: the new value.

Return value

Returns true if the atomic variable was set, false otherwise.

Thread safety

It is safe to call this function from any thread.

Availability

This function is available since SDL 3.2.0.

See also

• SDL_GetAtomicU32
• SDL_SetAtomicU32