1 files changed, 8 insertions, 3 deletions
diff --git a/StdLib/LibC/String/Comparison.c b/StdLib/LibC/String/Comparison.c
index e656fe73f5..b4980c7c1e 100644
--- a/StdLib/LibC/String/Comparison.c
+++ b/StdLib/LibC/String/Comparison.c
@@ -109,10 +109,15 @@ strcasecmp(const char *s1, const char *s2)
 {
   const unsigned char *us1 = (const unsigned char *)s1,
   *us2 = (const unsigned char *)s2;
+  int Difference;
 
-  while (tolower(*us1) == tolower(*us2++))
-    if (*us1++ == '\0')
+  while ( 0 == ( Difference = tolower(*us1) - tolower(*us2))) {
+    if (*us1 == 0) {
     return (0);
-  return (tolower(*us1) - tolower(*--us2));
+    }
+    us1 += 1;
+    us2 += 1;
+  }
+  return Difference;
 }