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ffs
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
ffs - find first set bit in wordSYNOPSIS
- int ffs(int x);
ARGUMENTS
x
- the word to search
DESCRIPTION
This is defined the same way as the libc and compiler builtin ffs routines, therefore differs in spirit from the other bitops.
ffs(value) returns 0 if value is 0 or the position of the first set bit if value is nonzero. The first (least significant) bit is at position 1.
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