Make sure that all <ctype.h> routines are called with unsigned char

values; it's not portable to call them with signed chars.  I recall doing
this for the last release, but a few more uncasted calls have snuck in.

1 files changed, 3 insertions, 3 deletions

diff --git a/contrib/dbase/dbf2pg.c b/contrib/dbase/dbf2pg.c
index a635e09122c..038c2b5aba2 100644
--- a/contrib/dbase/dbf2pg.c
+++ b/contrib/dbase/dbf2pg.c
@@ -78,7 +78,7 @@ isinteger(char *buff)
 				i++;
 				continue;
 			}
-		if (!isdigit((int) *i))
+		if (!isdigit((unsigned char) *i))
 			return 0;
 		i++;
 	}
@@ -90,7 +90,7 @@ strtoupper(char *string)
 {
 	while (*string != '\0')
 	{
-		*string = toupper(*string);
+		*string = toupper((unsigned char) *string);
 		string++;
 	}
 }
@@ -100,7 +100,7 @@ strtolower(char *string)
 {
 	while (*string != '\0')
 	{
-		*string = tolower(*string);
+		*string = tolower((unsigned char) *string);
 		string++;
 	}
 }