Each bit of result is corresponding bit of a if corresponding bit of c is 0.
gentype bitselect(gentype a, gentype b, gentype c);
| halfn bitselect (halfn a, halfn b, halfn c) // if half extension enabled |
|---|
Each bit of result is corresponding bit of a if corresponding bit of c is 0. Otherwise it is the corresponding bit of b.
If an implementation extends this specification to support IEEE-754 flags or exceptions, then all built-in relational functions shall proceed without raising the invalid floating-point exception when one or more of the operands are NaNs.
The built-in relational functions are extended with cl_khr_fp16(3clc) to include appropriate versions of functions that take half, and half{2|3|4|8|16} as arguments and return values.
The argment type gentype can be char, charn,uchar, ucharn, short, shortn, ushort, ushortn, int, intn, uint, uintn, long, longn, ulong, ulongn, float, floatn, double, and doublen.
\m[blue]OpenCL Specification\m[]\s-2\u[1]\d\s+2
relationalFunctions(3clc)
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OpenCL Specification
page 264, section 6.12.6 - Relational Functions