2011 Khronos Group
frexp 3G
frexp split a floating point number

## Declaration

genType `frexp` genType x out genIType exp genDType `frexp` genDType x out genIType exp

## Parameters

x

  Specifies the value from which significand and exponent are to be extracted.

out exp

  Specifies the variable into which to place the exponent

## Description

`frexp` extracts x into a floating-point significand in the range [0.5, 1.0) and in integral exponent of two, such that:

x = significand ⋅ 2 exponent

The significand is returned by the function and the exponent is returned in the output parameter exp. For a floating-point value of zero, the significand and exponent are both zero. For a floating-point value that is an infinity or a floating-point NaN, the results are undefined.

## Version Support

#VARTABLECOLS#
#FUNCTABLEHEADER#
frexp (genType)#newin40#
frexp (genDType)#newin40#

## See Also

ldexp

## Copyright

Copyright 2011 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/.