Name

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

FunctionVersion 1.10Version 1.20Version 1.30Version 1.40Version 1.50Version 3.30Version 4.00Version 4.10Version 4.20Version 4.30
frexp (genType)------YYYY
frexp (genDType)------YYYY

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/.