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I noticed this, thanks to cygwin 1.7's improved QoI ctype.h header. (Hmm,
maybe I should file a glibc bug that the Linux ctype.h should offer the
same compiler warning when passing a char instead of an unsigned char to
the ctype macros.)
- --
Don't work too hard, make some time for fun as well!
Eric Blake e...@byu.net
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>From db30dc297c6c4ba4d333120820d935304d804c46 Mon Sep 17 00:00:00 2001
From: Eric Blake <e...@byu.net>
Date: Mon, 15 Jun 2009 09:46:34 -0600
Subject: [PATCH] Avoid compiler warning.
* m4/macro.c (process_macro): Use correct type for isdigit.
Signed-off-by: Eric Blake <e...@byu.net>
---
ChangeLog | 5 +++++
m4/macro.c | 3 ++-
2 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 3b356c1..bde4c2b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-15 Eric Blake <e...@byu.net>
+
+ Avoid compiler warning.
+ * m4/macro.c (process_macro): Use correct type for isdigit.
+
2009-06-13 Eric Blake <e...@byu.net>
Avoid snprintf link failures.
diff --git a/m4/macro.c b/m4/macro.c
index fc28cd3..76ccca7 100644
--- a/m4/macro.c
+++ b/m4/macro.c
@@ -740,7 +740,8 @@ process_macro (m4 *context, m4_symbol_value *value,
m4_obstack *obs,
syntax instead of $10; see
http://lists.gnu.org/archive/html/m4-discuss/2006-08/msg00028.html
for more discussion. */
- if (m4_get_posixly_correct_opt (context) || !isdigit(text[1]))
+ if (m4_get_posixly_correct_opt (context)
+ || !isdigit (to_uchar (text[1])))
{
i = *text++ - '0';
len--;
--
1.6.3.rc3.2.g4b51
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