'\" t
.\"     Title: bitselect
.\"    Author: The Khronos Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 02/03/2019
.\"    Manual: OpenCL Manual
.\"    Source: The Khronos Group
.\"  Language: English
.\"
.TH "BITSELECT" "3clc" "02/03/2019" "The Khronos Group" "OpenCL Manual"
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.SH "NAME"
bitselect \- Each bit of result is corresponding bit of a if corresponding bit of c is 0\&.
.SH ""
.HP \w'gentype\ bitselect('u
.BI "gentype bitselect(gentype\ " "a" ", gentype\ " "b" ", gentype\ " "c" ");"
.SS ""
.TS
tab(:);
l.
T{
\fBhalfn\fR \fBbitselect\fR (\fBhalfn\fR \fIa\fR, \fBhalfn\fR \fIb\fR,
\fBhalfn\fR \fIc\fR)      // if half extension enabled
T}
.TE
.sp 1
.SH "DESCRIPTION"
.PP
Each bit of result is corresponding bit of
\fIa\fR
if corresponding bit of
\fIc\fR
is 0\&. Otherwise it is the corresponding bit of
\fIb\fR\&.
.SH "NOTES"
.PP
If an implementation extends this specification to support IEEE\-754 flags or exceptions, then all built\-in relational functions shall proceed without raising the
\fIinvalid\fR
floating\-point exception when one or more of the operands are NaNs\&.
.PP
The built\-in relational functions are extended with
\fBcl_khr_fp16\fR(3clc)
to include appropriate versions of functions that take
\fBhalf\fR, and
\fBhalf{2|3|4|8|16}\fR
as arguments and return values\&.
.PP
The argment type
\fBgentype\fR
can be
\fBchar\fR,
\fBchar\fR\fB\fIn\fR\fR,\fBuchar\fR,
\fBuchar\fR\fB\fIn\fR\fR,
\fBshort\fR,
\fBshort\fR\fB\fIn\fR\fR,
\fBushort\fR,
\fBushort\fR\fB\fIn\fR\fR,
\fBint\fR,
\fBint\fR\fB\fIn\fR\fR,
\fBuint\fR,
\fBuint\fR\fB\fIn\fR\fR,
\fBlong\fR,
\fBlong\fR\fB\fIn\fR\fR,
\fBulong\fR,
\fBulong\fR\fB\fIn\fR\fR,
\fBfloat\fR,
\fBfloat\fR\fB\fIn\fR\fR,
\fBdouble\fR, and
\fBdouble\fR\fB\fIn\fR\fR\&.
.SH "SPECIFICATION"
.PP
\m[blue]\fBOpenCL Specification\fR\m[]\&\s-2\u[1]\d\s+2
.SH "SEE ALSO"
.PP
\fBrelationalFunctions\fR(3clc)
.SH "AUTHORS"
.PP
\fBThe Khronos Group\fR
.SH "COPYRIGHT"
.br
Copyright \(co 2007-2011 The Khronos Group Inc.
.br
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.
.sp
.SH "NOTES"
.IP " 1." 4
OpenCL Specification
.RS 4
\%page 264, section 6.12.6 - Relational Functions
.RE