# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1455525905 -7200
# Node ID 723a69185102be4287b26516249ac30c89f6b1ec
# Parent  81b4688f684b0e45c13524d423f817a861fe4521
Fix th_str{n}dup_trim() functions.

diff -r 81b4688f684b -r 723a69185102 th_string.c
--- a/th_string.c	Mon Feb 15 10:13:08 2016 +0200
+++ b/th_string.c	Mon Feb 15 10:45:05 2016 +0200
@@ -74,7 +74,10 @@
         end = len;
 
     // Allocate memory for result
-    len = end - start + 1;
+    len = end - start;
+    if (len == 0)
+        return NULL;
+
     if ((res = th_malloc(len + 1)) == NULL)
         return NULL;