# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1588088318 -10800
# Node ID 18ec4c092108ac392c8bc59cdef4820ab96ff30e
# Parent  c64806412be0cc726c895aa9a3588f500fae3191
Fix dm_strncasecmp() edge case.

diff -r c64806412be0 -r 18ec4c092108 src/dmstring.c
--- a/src/dmstring.c	Tue Apr 28 18:11:59 2020 +0300
+++ b/src/dmstring.c	Tue Apr 28 18:38:38 2020 +0300
@@ -45,7 +45,7 @@
         n--;
     }
 
-    return tolower(*s1) - tolower(*s2);
+    return (n == 0) ? 0 : tolower(*s1) - tolower(*s2);
 }