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| author | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2023-02-03 12:01:33 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2023-02-06 16:16:19 +0000 |
| commit | 32c7acd46401530fdbd4e98508c9baaa705f8b53 (patch) | |
| tree | 000fcd17f9b6ddbc14af397f33963e72a3c9d4bb /manual/string.texi | |
| parent | d2d3f3720ce627a4fe154d8dd14db716a32bcc6e (diff) | |
| download | glibc-32c7acd46401530fdbd4e98508c9baaa705f8b53.tar.gz glibc-32c7acd46401530fdbd4e98508c9baaa705f8b53.tar.xz glibc-32c7acd46401530fdbd4e98508c9baaa705f8b53.zip | |
Replace rawmemchr (s, '\0') with strchr
Almost all uses of rawmemchr find the end of a string. Since most targets use a generic implementation, replacing it with strchr is better since that is optimized by compilers into strlen (s) + s. Also fix the generic rawmemchr implementation to use a cast to unsigned char in the if statement. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'manual/string.texi')
| -rw-r--r-- | manual/string.texi | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/manual/string.texi b/manual/string.texi index 7578aa1c26..e06433187e 100644 --- a/manual/string.texi +++ b/manual/string.texi @@ -1726,15 +1726,7 @@ made an error in assuming that the byte @var{c} is present in the block. In this case the result is unspecified. Otherwise the return value is a pointer to the located byte. -This function is of special interest when looking for the end of a -string. Since all strings are terminated by a null byte a call like - -@smallexample - rawmemchr (str, '\0') -@end smallexample - -@noindent -will never go beyond the end of the string. +When looking for the end of a string, use @code{strchr}. This function is a GNU extension. @end deftypefun |