On Thu, Jul 09, 2020 at 12:15:57PM +0200, mwilck@xxxxxxxx wrote:
> From: Martin Wilck <mwilck@xxxxxxxx>
>
> Also remove the redundant local variables. It's not necessary to
> make "restrict" work, but it makes the intention more clear.
>
> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
> ---
> libmultipath/util.c | 28 ++++++++++++----------------
> libmultipath/util.h | 4 ++--
> 2 files changed, 14 insertions(+), 18 deletions(-)
>
> diff --git a/libmultipath/util.c b/libmultipath/util.c
> index 957fb97..f965094 100644
> --- a/libmultipath/util.c
> +++ b/libmultipath/util.c
> @@ -113,46 +113,42 @@ get_word (const char *sentence, char **word)
> return skip + len;
> }
>
> -size_t strlcpy(char *dst, const char *src, size_t size)
> +size_t strlcpy(char * restrict dst, const char * restrict src, size_t size)
> {
> size_t bytes = 0;
> - char *q = dst;
> - const char *p = src;
> char ch;
>
> - while ((ch = *p++)) {
> - if (bytes+1 < size)
> - *q++ = ch;
> + while ((ch = *src++)) {
> + if (bytes + 1 < size)
> + *dst++ = ch;
> bytes++;
> }
>
> /* If size == 0 there is no space for a final null... */
> if (size)
> - *q = '\0';
> + *dst = '\0';
> return bytes;
> }
>
> -size_t strlcat(char *dst, const char *src, size_t size)
> +size_t strlcat(char * restrict dst, const char * restrict src, size_t size)
> {
> size_t bytes = 0;
> - char *q = dst;
> - const char *p = src;
> char ch;
>
> - while (bytes < size && *q) {
> - q++;
> + while (bytes < size && *dst) {
> + dst++;
> bytes++;
> }
> if (bytes == size)
this should return the strlen(dst) + strlen(src). It wouldn't in the
admittedly weird case where size isn't large enough to fit dst.
> return (bytes + strlen(src));
>
> - while ((ch = *p++)) {
> - if (bytes+1 < size)
> - *q++ = ch;
> + while ((ch = *src++)) {
> + if (bytes + 1 < size)
> + *dst++ = ch;
> bytes++;
> }
>
> - *q = '\0';
> + *dst = '\0';
> return bytes;
> }
>
> diff --git a/libmultipath/util.h b/libmultipath/util.h
> index ae18d8b..7e29b26 100644
> --- a/libmultipath/util.h
> +++ b/libmultipath/util.h
> @@ -15,8 +15,8 @@ int basenamecpy (const char *src, char *dst, size_t size);
> int filepresent (const char *run);
> char *get_next_string(char **temp, const char *split_char);
> int get_word (const char * sentence, char ** word);
> -size_t strlcpy(char *dst, const char *src, size_t size);
> -size_t strlcat(char *dst, const char *src, size_t size);
> +size_t strlcpy(char * restrict dst, const char * restrict src, size_t size);
> +size_t strlcat(char * restrict dst, const char * restrict src, size_t size);
> int devt2devname (char *, int, const char *);
> dev_t parse_devt(const char *dev_t);
> char *convert_dev(char *dev, int is_path_device);
> --
> 2.26.2
--
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