lib: Add a way to find the postiion of a trailing number
At present it is not possible to find out which part of the string is the
number part and which is before it. Add a new variant which provides this
feature, so we can separate the two in the caller.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/vsprintf.h b/include/vsprintf.h
index 5172cee..e006af2 100644
--- a/include/vsprintf.h
+++ b/include/vsprintf.h
@@ -122,6 +122,24 @@
long trailing_strtoln(const char *str, const char *end);
/**
+ * trailing_strtoln_end() - extract 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 examine
+ * @end: Pointer to end of string to examine, or NULL to use the
+ * whole string
+ * @endp: If non-NULL, this is set to point to the character where the
+ * number starts, e.g. for "mmc0" this would be point to the '0'; if no
+ * trailing number is found, it is set to the end of the string
+ * Return: training number if found, else -1
+ */
+long trailing_strtoln_end(const char *str, const char *end, char const **endp);
+
+/**
* panic() - Print a message and reset/hang
*
* Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is