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frexp

Name

frexp — split a floating point number

Declaration

genType frexp( genType 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

OpenGL ES Shading Language Version
Function Name 1.00 3.00 3.10
frexp - -

See Also

ldexp

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