atomic_xchg

atomic_xchg functions.

int atomic_xchg ( volatile __global int *p,
  int val)
uint atomic_xchg ( volatile __global uint *p,
  uint val)
float atomic_xchg ( volatile __global float *p,
  float val)
int atomic_xchg ( volatile __local int *p,
  int val)
uint atomic_xchg ( volatile __local uint *p,
  uint val)
float atomic_xchg ( volatile __local float *p,
  float val)

Description

Swaps the old value stored at location p with new value given by val. Returns old value.

Specification

OpenCL Specification

Also see

Atomic Functions, cl_khr_int64_base_atomics

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