From 21d9e2c934b263c16ddba19013994f567f4e81b0 Mon Sep 17 00:00:00 2001
From: Darkvater <darkvater@openttd.org>
Date: Tue, 17 May 2005 19:36:36 +0000
Subject: (svn r2342) - Fix (Regression): _cmd_text is always valid, so test
 the first character for  '\0'. Also for some reason I forgot to validate the
 p1 param so that might lead to crashes with invalid signes. Fixed as well.

---
 signs.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'signs.h')

diff --git a/signs.h b/signs.h
index 2cc417ca0..4451f8f89 100644
--- a/signs.h
+++ b/signs.h
@@ -41,6 +41,11 @@ static inline uint16 GetSignPoolSize(void)
 	return _sign_pool.total_items;
 }
 
+static inline bool IsSignIndex(uint index)
+{
+	return index < GetSignPoolSize();
+}
+
 #define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1 < GetSignPoolSize()) ? GetSign(ss->index + 1) : NULL)
 #define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
 
-- 
cgit v1.2.3-54-g00ecf