1 files changed, 3 insertions, 0 deletions
diff --git a/lib/String.cc b/lib/String.cc
index 6fc9bfa..08818eb 100644
--- a/lib/String.cc
+++ b/lib/String.cc
@@ -237,6 +237,9 @@ const char * String::to_charp(size_t from, ssize_t to) const throw (GeneralExcep
     if (to < 0) {
         return str + from;
     } else {
+        if (siz == 0) {
+            return str;
+        }
 	if (((size_t) to) >= siz) {
 	    to = siz - 1;
 	}