From 322715317377bd3336061d67f6172e60a7088f20 Mon Sep 17 00:00:00 2001
From: MooZ <mooz@blockos.org>
Date: Sun, 15 Mar 2020 19:47:38 +0100
Subject: [PATCH] Fixed unit test crash.

---
 tinypds.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tinypds.h b/tinypds.h
index c4bb139..215025f 100644
--- a/tinypds.h
+++ b/tinypds.h
@@ -430,10 +430,12 @@ static void PDS_error(PDS_parser *parser, const char *current, int error, const
     parser->status = error;
     if(0 != parser->callbacks.error) {
         PDS_error_description description;
-        description.line_first = parser->line;
-        for(description.line_last = parser->line; description.line_last != parser->last; description.line_last++) {
-            if('\n' == *description.line_last) {
-                break;
+        description.line_first = description.line_last = parser->line;
+        if(description.line_last) {
+            for(; description.line_last != parser->last; description.line_last++) {
+                if('\n' == *description.line_last) {
+                    break;
+                }
             }
         }
         description.number     = parser->line_num;