frexp - split a floating point number

Copyright

       Copyright © 2011-2014 Khronos Group

[FIXME: source]                                    11/18/2024                                          FREXP(3G)

Declaration

genTypefrexp(genTypex,outgenITypeexp);genDTypefrexp(genDTypex,outgenITypeexp);

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.

Name

       frexp - split a floating point number

Parameters

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

       outexp
           Specifies the variable into which to place the exponent

Version Support

       ┌────────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │            │        OpenGLShadingLanguageVersion                                            │
       ├────────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │ Function   │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
       │ Name       │      │      │      │      │      │      │      │      │      │      │      │      │
       ├────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │ frexp      │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       │ (genType)  │      │      │      │      │      │      │      │      │      │      │      │      │
       ├────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │ frexp      │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       │ (genDType) │      │      │      │      │      │      │      │      │      │      │      │      │
       └────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘