isnormal

Test for a normal value.

int isnormal ( float )
intn isnormal ( floatn )
int isnormal ( double )
longn isnormal ( doublen )

int isnormal (half) // if half extension enabled shortn isnormal (halfn) // if half extension enabled

Description

Test for a normal value.

Notes

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 to include appropriate versions of functions that take half, and half{2|3|4|8|16} as arguments and return values.

The function returns a 0 if the specified relation is false and a 1 if the specified relation is true for scalar argument types. These functions shall return a 0 if the specified relation is false and a - 1 (i.e. all bits set) if the specified relation is true for vector argument types.

Specification

OpenCL Specification

Also see

Relational Functions

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