From 767adcf5d63b9fb72a3951a8270d4ce1575f1294 Mon Sep 17 00:00:00 2001
From: Teodor Sigaev <teodor@sigaev.ru>
Date: Mon, 19 Jan 2004 18:40:23 +0000
Subject: [PATCH] Correct type for isalnum

---
 contrib/ltree/ltree.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/ltree/ltree.h b/contrib/ltree/ltree.h
index c732a37fa2d..edcda22e4b9 100644
--- a/contrib/ltree/ltree.h
+++ b/contrib/ltree/ltree.h
@@ -87,7 +87,7 @@ typedef struct
 #ifndef abs
 #define abs(a)					((a) <	(0) ? -(a) : (a))
 #endif
-#define ISALNUM(x)	( isalnum((unsigned int)(x)) || (x) == '_' )
+#define ISALNUM(x)	( isalnum((unsigned char)(x)) || (x) == '_' )
 
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