Atomic increment on mac OS X

Question

I have googled for atomic increment and decrement operators on Mac OS X and found \"OSAtomic.h\", but it seems you can only use this in kernel space.

Jeremy Friesner poi

Answer 1

What makes you think OSAtomic is kernel space only? The following compiles and works fine.

#include 
#include 

int main(int argc, char** argv) {
  int32_t foo = 1;
  OSAtomicDecrement32(&foo);
  printf("%d\n", foo);

  return 0;
}