From 459903bd4e270ab4884ba9577516f9b2753898b0 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Mon, 27 Nov 2006 14:44:18 +0000
Subject: Provide our own isdigit macro. saves more than 400 bytes.

---
 include/libbb.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/libbb.h b/include/libbb.h
index 63748c85d..baab74878 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -666,7 +666,6 @@ extern const char bb_default_login_shell[];
 #undef isascii
 #undef isblank
 #undef iscntrl
-#undef isdigit
 #undef isgraph
 #undef islower
 #undef isprint
@@ -675,6 +674,11 @@ extern const char bb_default_login_shell[];
 #undef isupper
 #undef isxdigit
 
+/* This one is more efficient - we save ~400 bytes */
+#undef isdigit
+#define isdigit(a) ((unsigned)((a) - '0') <= 9)
+
+
 #ifdef DMALLOC
 #include <dmalloc.h>
 #endif
-- 
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