NAME¶

atomic_dec - atomic_dec functions.

¶

int atomic_dec(volatile global(3clc) int *p);

unsigned int atomic_dec(volatile global(3clc) unsigned int *p);

int atomic_dec(volatile local(3clc) int *p);

unsigned int atomic_dec(volatile local(3clc) unsigned int *p);

DESCRIPTION¶

Read the 32-bit value (referred to as old) stored at location pointed by p. Compute (old - 1) and store result at location pointed by p. The function returns old.

A 64-bit version of this function, atom_dec(3clc), is enabled by cl_khr_int64_base_atomics(3clc).

SPECIFICATION¶

OpenCL Specification[1]

SEE ALSO¶

atomicFunctions(3clc), atom_dec(3clc)

AUTHORS¶

The Khronos Group

COPYRIGHT¶

Copyright © 2007-2011 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or associated documentation files (the "Materials"), to deal in the Materials without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to the condition that this copyright notice and permission notice shall be included in all copies or substantial portions of the Materials.

NOTES¶

1.

OpenCL Specification