From c4af6732c4021ffe8b3d0c82bdcf1eebb263bfc3 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 23 Jun 2015 15:39:08 -0600 Subject: lib: Add function to extract a number from the end of a string Split out the code in fdtdec which finds a number at the end of a string. It can be useful in other situations. Signed-off-by: Simon Glass --- include/vsprintf.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/vsprintf.h') diff --git a/include/vsprintf.h b/include/vsprintf.h index d2fcca3f5a..b5bc9c1d95 100644 --- a/include/vsprintf.h +++ b/include/vsprintf.h @@ -40,6 +40,32 @@ unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base); long simple_strtol(const char *cp, char **endp, unsigned int base); +/** + * trailing_strtol() - extract a trailing integer from a string + * + * Given a string this finds a trailing number on the string and returns it. + * For example, "abc123" would return 123. + * + * @str: String to exxamine + * @return training number if found, else -1 + */ +long trailing_strtol(const char *str); + +/** + * trailing_strtoln() - extract a trailing integer from a fixed-length string + * + * Given a fixed-length string this finds a trailing number on the string + * and returns it. For example, "abc123" would return 123. Only the + * characters between @str and @end - 1 are examined. If @end is NULL, it is + * set to str + strlen(str). + * + * @str: String to exxamine + * @end: Pointer to end of string to examine, or NULL to use the + * whole string + * @return training number if found, else -1 + */ +long trailing_strtoln(const char *str, const char *end); + /** * panic() - Print a message and reset/hang * -- cgit v1.2.1