[src/trunk]: src/sys/ddb Simplify logic to get rid of implicit dependence on ...

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ba854d24deb8
branches:  trunk
changeset: 464314:ba854d24deb8
user:      rin <rin%NetBSD.org@localhost>
date:      Wed Oct 02 09:36:30 2019 +0000

description:
Simplify logic to get rid of implicit dependence on order of ASCII
codes of upper and lower cases ('a' > 'A').

Found by the lgtm bot.

No functional changes intended.

diffstat:

 sys/ddb/db_lex.c |  18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diffs (40 lines):

diff -r 31ab849d7d2e -r ba854d24deb8 sys/ddb/db_lex.c
--- a/sys/ddb/db_lex.c  Wed Oct 02 08:21:08 2019 +0000
+++ b/sys/ddb/db_lex.c  Wed Oct 02 09:36:30 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_lex.c,v 1.23 2019/09/29 02:00:22 uwe Exp $  */
+/*     $NetBSD: db_lex.c,v 1.24 2019/10/02 09:36:30 rin Exp $  */
 
 /*
  * Mach Operating System
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_lex.c,v 1.23 2019/09/29 02:00:22 uwe Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_lex.c,v 1.24 2019/10/02 09:36:30 rin Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -210,14 +210,14 @@
                for (;;) {
                        if (c >= '0' && c <= ((r == 8) ? '7' : '9'))
                                digit = c - '0';
-                       else if (r == 16 && ((c >= 'A' && c <= 'F') ||
-                               (c >= 'a' && c <= 'f'))) {
-                               if (c >= 'a')
+                       else if (r == 16) {
+                               if (c >= 'A' && c <= 'F')
+                                       digit = c - 'A' + 10;
+                               else if (c >= 'a' && c <= 'f')
                                        digit = c - 'a' + 10;
-                               else if (c >= 'A')
-                                       digit = c - 'A' + 10;
-                       }
-                       else
+                               else
+                                       break;
+                       } else
                                break;
                        db_tok_number = db_tok_number * r + digit;
                        c = db_read_char();