frexp — split a floating point number
|out genIType exp
Specifies the value from which significand and exponent are to be extracted.
Specifies the variable into which to place the exponent
x into a floating-point significand
in the range [0.5, 1.0) and in integral exponent of two, such that:
The significand is returned by the function and the exponent is returned in the output
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.
|OpenGL ES Shading Language Version|
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