force to unisgned char

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/eina@51624 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

diff --git a/src/lib/eina_str.c b/src/lib/eina_str.c
index 7776eb2..24f4f8e 100644 (file)
--- a/src/lib/eina_str.c
+++ b/src/lib/eina_str.c
@@ -612,7 +612,7 @@ eina_str_tolower(char **str)
       return;
 
    for (p = *str; (*p); p++)
-      *p = tolower(*p);
+      *p = tolower((unsigned char )(*p));
 }
 
 /**
@@ -630,7 +630,7 @@ eina_str_toupper(char **str)
       return;
 
    for (p = *str; (*p); p++)
-      *p = toupper(*p);
+      *p = toupper((unsigned char)(*p));
 }