Answer by R.. GitHub STOP HELPING ICE for gcc builtin atomic compare and...
Sure, but you just have to call it in a loop. On each loop iteration, read the old value. If it's null, break out of the loop and return failure. If it's not null, use that old value as the "expected"...
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I want to use the gcc builtin function __atomic_compare_exchange() but I need it slightly different than it is specified as and it I am unsure it`s possible to achieve.the function...
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