add comment header for UUID::char2int

2015-12-07 15:30:35 +00:00 · 2015-12-07 15:30:35 +00:00 · 9c648dc3c6
parent aac3181548
commit 9c648dc3c6
1 changed files with 5 additions and 0 deletions
--- a/ble/UUID.h
+++ b/ble/UUID.h
@ -22,6 +22,11 @@

 #include "blecommon.h"

+/**
+ * A trivial converter for single hexadecimal character to unsigned-int.
+ * @param  c hexadecimal character.
+ * @return   the corresponding value as unsigned int.
+ */
 static uint8_t char2int(char c) {
    if ((c >= '0') && (c <= '9')) {
        return c - '0';