2011 Khronos Group
findMSB 3G
findMSB find the index of the most significant bit set to 1 in an integer

## Declaration

genIType `findMSB` genIType value genIType `findMSB` genUType value

## Parameters

value

  Specifies the value whose bits to scan.

## Description

`findMSB` returns the bit number of the most significant bit that is set to 1 in the binary representation of value. For positive integers, the result will be the bit number of the most significant bit that is set to 1. For negative integers, the result will be the bit number of the most significant bit set to 0. For a value of zero or negative 1, -1 will be returned.

## Version Support

#VARTABLECOLS#
#FUNCTABLEHEADER#
findMSB#newin40#

## See Also

findLSB

## 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/.