refactor: less locals

1 files changed, 3 insertions, 5 deletions

diff --git a/booki.c b/booki.c
index a199701..770ea00 100644
--- a/booki.c
+++ b/booki.c
@@ -22,20 +22,18 @@ char* characters_from_end(char* str, int len_in_bytes, int number_of_chars) {
         return str;
 
     // start at the end of the string, locate all code points
-    char* newptr = str + len_in_bytes; // will update to last character in do..while
     unsigned char ch;
     do {
-        // update the pointer, get the character
-        newptr--;
+        // get the last/previous byte
         len_in_bytes--;
-        ch = (unsigned char) *newptr;
+        ch = (unsigned char) *(str + len_in_bytes);
 
         // if we're at the first byte of a unicode point, we've found a whole character
         if (ch < 0x80 || ch >= 0xC3)
             number_of_chars--;
     } while (number_of_chars > 0 && len_in_bytes > 0);
 
-    return newptr;
+    return str + len_in_bytes;
 }
 
 bool comparable(const char* pattern, const char* candidate, int len) {