ilogb
ilogb
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3
ilogb Exponent as an integer value.

##

intn `ilogb` floatn x int `ilogb` float x intn `ilogb` doublen x int `ilogb` double x intn `ilogb` halfn x int `ilogb` half x

## Description

Returns the exponent as an integer value.

## Notes

&mathFunctionsInc;

The following macros shall expand to integer constant expressions whose values are returned by `ilogb`(`x`) if `x` is zero or NaN, respectively. The value of `FP_ILOGB0` shall be either {`INT_MIN`} or - {`INT_MAX`}. The value of `FP_ILOGBNAN` shall be either {`INT_MAX`} or {`INT_MIN`}.

## Specification

OpenCL Specification

## Also see

Math Functions

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