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| author | Mattias Andrée <maandree@operamail.com> | 2015-09-02 17:30:24 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@operamail.com> | 2015-09-02 17:30:24 +0200 |
| commit | d0a041e7e8e5d26b530855dc75f35733b334ee54 (patch) | |
| tree | 3df6c47f40bc80e54a662db22c92415dac90a689 /include | |
| parent | add prototypes for strcasecmp_l and strncasecmp_l (diff) | |
| download | slibc-d0a041e7e8e5d26b530855dc75f35733b334ee54.tar.gz slibc-d0a041e7e8e5d26b530855dc75f35733b334ee54.tar.bz2 slibc-d0a041e7e8e5d26b530855dc75f35733b334ee54.tar.xz | |
add ffs functions
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
| -rw-r--r-- | include/strings.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/strings.h b/include/strings.h index 224c9a4..7a02d1e 100644 --- a/include/strings.h +++ b/include/strings.h @@ -145,6 +145,34 @@ char* rindex(const char*, int) __GCC_ONLY(__attribute__((warn_unused_result, nonnull, pure))); +/** + * Find the first set bit in an integer. + * + * @param i The integer + * @return The value of the least significant set bit, zero if none. + */ +int ffs(int) + __GCC_ONLY(__attribute__((warn_unused_result, const))); + +/** + * Find the first set bit in an integer. + * + * @param i The integer + * @return The value of the least significant set bit, zero if none. + */ +int ffsl(long) + __GCC_ONLY(__attribute__((warn_unused_result, const))); + +/** + * Find the first set bit in an integer. + * + * @param i The integer + * @return The value of the least significant set bit, zero if none. + */ +int ffsll(long long) + __GCC_ONLY(__attribute__((warn_unused_result, const))); + + #endif |