From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Fri, 23 Oct 2009 00:22:03 +0000 (+0200)
Subject: libbb: smaller isdigit. -95 bytes
X-Git-Tag: 1_16_0~333
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=7b4cd6f7b07b816c4b36d686fe47c5cfec7f5abf;p=oweals%2Fbusybox.git

libbb: smaller isdigit. -95 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---

diff --git a/include/libbb.h b/include/libbb.h
index fb7296f25..ad0d59d04 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1579,9 +1579,10 @@ extern const char bb_default_login_shell[];
 #undef isupper
 #undef isxdigit
 
-/* This one is more efficient - we save ~400 bytes */
+/* This one is more efficient - we save ~500 bytes.
+ * BTW, x86 likes (unsigned char) cast more than (unsigned). */
 #undef isdigit
-#define isdigit(a) ((unsigned)((a) - '0') <= 9)
+#define isdigit(a) ((unsigned char)((a) - '0') <= 9)
 
 /* This one is more efficient too! ~200 bytes */
 /* In POSIX/C locale (the only locale we care about: do we REALLY want