From b7b90430c4290e4fb633cb3a38bd2f501f39a998 Mon Sep 17 00:00:00 2001
From: unknown <peter@mysql.com>
Date: Wed, 7 Aug 2002 19:26:41 +0400
Subject: [PATCH] Fix bug of running the queries with no selected database
 while running with --lower_case_table_names

mysys/mf_casecnv.c:
  Fix writing to string which is possible to be "" constant
---
 mysys/mf_casecnv.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/mysys/mf_casecnv.c b/mysys/mf_casecnv.c
index 0302688ad1f..1fae3aead32 100644
--- a/mysys/mf_casecnv.c
+++ b/mysys/mf_casecnv.c
@@ -45,8 +45,11 @@ void caseup_str(my_string str)
   }
   else
 #endif
-    while ((*str = toupper(*str)) != 0)
+    while (*str!=0) /* iterate till the end of string */
+    {
+      *str= toupper(*str);
       str++;
+    }  
 } /* caseup_str */
 
 	/* string to lowercase */
@@ -66,8 +69,11 @@ void casedn_str(my_string str)
   }
   else
 #endif
-    while ((*str= tolower(*str)) != 0)
+    while (*str!=0) /* iterate till the end of string */
+    {
+      *str= tolower(*str);
       str++;
+    }  
 } /* casedn_str */