diff options
| -rw-r--r-- | include/vsprintf.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/vsprintf.h b/include/vsprintf.h index c30e91fd6f..debf977401 100644 --- a/include/vsprintf.h +++ b/include/vsprintf.h @@ -15,12 +15,15 @@ * * @param cp The string to be converted * @param endp Updated to point to the first character not converted - * @param base The number base to use + * @param base The number base to use (0 for the default) * @return value decoded from string (0 if invalid) * * Converts a string to an unsigned long. If there are invalid characters at * the end these are ignored. In the worst case, if all characters are invalid, * 0 is returned + * + * If @base is 0, octal or hex prefixes are supported (e.g. 0777, 0x123) to + * select a particular base. By default decimal is used. */ ulong simple_strtoul(const char *cp, char **endp, unsigned int base); @@ -53,7 +56,7 @@ unsigned long dectoul(const char *cp, char **endp); /** * strict_strtoul - convert a string to an unsigned long strictly * @param cp The string to be converted - * @param base The number base to use + * @param base The number base to use (0 for the default) * @param res The converted result value * @return 0 if conversion is successful and *res is set to the converted * value, otherwise it returns -EINVAL and *res is set to 0. @@ -68,6 +71,9 @@ unsigned long dectoul(const char *cp, char **endp); * * echo will append a newline to the tail. * + * If @base is 0, octal or hex prefixes are supported (e.g. 0777, 0x123) to + * select a particular base. By default decimal is used. + * * Copied this function from Linux 2.6.38 commit ID: * 521cb40b0c44418a4fd36dc633f575813d59a43d * |