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NAME
atomicAnd - perform an atomic logical AND operation to a variable
DECLARATION
int atomicAnd(inout int mem, int data);
uint atomicAnd(inout uint mem, uint data);
PARAMETERS
mem
The variable to use as the target of the operation.
data
The data to be logically ANDed with to mem.
DESCRIPTION
atomicAnd performs an atomic logical AND with data to the contents of mem and returns the original
contents of mem from before the logical operation occured. The contents of the memory being updated by
the atomic operation are guaranteed not to be modified by any other assignment or atomic memory function
in any shader invocation between the time the original value is read and the time the new value is
written.
Atomic memory functions are supported only for a limited set of variables. A shader will fail to compile
if the value passed to the mem argument of an atomic memory function does not correspond to a buffer or
shared variable. It is acceptable to pass an element of an array or a single component of a vector to the
mem argument of an atomic memory function, as long as the underlying array or vector is a buffer or
shared variable.
VERSION SUPPORT
┌──────────┬───────────────────────────────────────────────────────────────────────────────────┐
│ │ OpenGL Shading Language Version │
├──────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
│Function │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
│Name │ │ │ │ │ │ │ │ │ │ │ │ │
├──────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
│atomicAnd │ - │ - │ - │ - │ - │ - │ - │ - │ - │ ✔ │ ✔ │ ✔ │
└──────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘
SEE ALSO
atomicAdd(), atomicOr(), atomicXor(), atomicMin(), atomicMax(), atomicExchange(), atomicCompSwap()
COPYRIGHT
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions
set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
COPYRIGHT
Copyright © 2012-2014 Khronos Group [FIXME: source] 01/03/2018 ATOMICAND(3G)