1FLS(9)                     Basic C Library Functions                    FLS(9)
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NAME

6       fls - find last set bit in word
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SYNOPSIS

9       int fls(int x);
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ARGUMENTS

12       x
13           the word to search
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DESCRIPTION

16       This is defined in a similar way as the libc and compiler builtin ffs,
17       but returns the position of the most significant set bit.
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19       fls(value) returns 0 if value is 0 or the position of the last set bit
20       if value is nonzero. The last (most significant) bit is at position 32.
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23Kernel Hackers Manual 2.6.         June 2019                            FLS(9)
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