Provided by: opengl-4-man-doc_1.0~svn33624-1_all bug

NAME
       log2 - return the base 2 logarithm of the parameter


DECLARATION
       genType log2(genType x);


PARAMETERS
       x
           Specify the value of which to take the base 2 logarithm.


DESCRIPTION
       log2 returns the base 2 logarithm of $x$, i.e. the value $y$ which satisfies $x = 2^y$.
       The result is undefined if $x \leq 0$.


VERSION SUPPORT
       ┌─────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │         │        OpenGL Shading Language Version                                            │
       ├─────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │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     │      │      │      │      │      │      │      │      │      │      │      │      │
       ├─────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │log2     │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       └─────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘


SEE ALSO
       exp(), log(), exp2()


COPYRIGHT
       Copyright © 2011-2014 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/.


COPYRIGHT
       Copyright © 2011-2014 Khronos Group

[FIXME: source]                             01/03/2018                                   LOG2(3G)