FLS(9) | Basic C Library Functions | FLS(9) |
NAME¶
fls - find last set bit in wordSYNOPSIS¶
int fls(int x);
ARGUMENTS¶
xthe word to search
DESCRIPTION¶
This is defined in a similar way as the libc and compiler builtin ffs, but returns the position of the most significant set bit. fls(value) returns 0 if value is 0 or the position of the last set bit if value is nonzero. The last (most significant) bit is at position 32.COPYRIGHT¶
May 2018 | Kernel Hackers Manual 3.16 |