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strings/ffs: avoid possible recursion #343

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merged 1 commit into from
Feb 12, 2024
Merged

strings/ffs: avoid possible recursion #343

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2 changes: 1 addition & 1 deletion string/string.c
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Original file line number Diff line number Diff line change
Expand Up @@ -537,5 +537,5 @@ size_t strxfrm(char *dest, const char *src, size_t n)

int ffs(int i)
{
return __builtin_ffs(i);
return (i == 0) ? 0 : __builtin_ctz(i) + 1;
}
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