[src/trunk]: src/usr.bin/xlint/lint1 lint: remove redundant EOF tests in lexer

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

details:   https://anonhg.NetBSD.org/src/rev/afcfdea60b0e
branches:  trunk
changeset: 1029132:afcfdea60b0e
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Dec 22 15:47:42 2021 +0000

description:
lint: remove redundant EOF tests in lexer

No functional change.

diffstat:

 usr.bin/xlint/lint1/lex.c |  18 ++++--------------
 1 files changed, 4 insertions(+), 14 deletions(-)

diffs (46 lines):

diff -r 5235e1132d0d -r afcfdea60b0e usr.bin/xlint/lint1/lex.c
--- a/usr.bin/xlint/lint1/lex.c Wed Dec 22 15:36:37 2021 +0000
+++ b/usr.bin/xlint/lint1/lex.c Wed Dec 22 15:47:42 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: lex.c,v 1.94 2021/12/22 15:20:08 rillig Exp $ */
+/* $NetBSD: lex.c,v 1.95 2021/12/22 15:47:42 rillig Exp $ */
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All Rights Reserved.
@@ -38,7 +38,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: lex.c,v 1.94 2021/12/22 15:20:08 rillig Exp $");
+__RCSID("$NetBSD: lex.c,v 1.95 2021/12/22 15:47:42 rillig Exp $");
 #endif
 
 #include <ctype.h>
@@ -945,12 +945,7 @@
                                warning(82);
                        v = 0;
                        n = 0;
-                       /*
-                        * TODO: remove the redundant EOF test once the test
-                        *  controlling_expression_with_comma_operator is
-                        *  fixed in d_c99_bool_strict_syshdr.c.
-                        */
-                       while ((c = inpc()) != EOF && isxdigit(c)) {
+                       while (c = inpc(), isxdigit(c)) {
                                c = isdigit(c) ?
                                    c - '0' : toupper(c) - 'A' + 10;
                                v = (v << 4) + c;
@@ -1140,12 +1135,7 @@
        eoc = false;
 
        /* Skip whitespace after the start of the comment */
-       /*
-        * TODO: remove the redundant EOF test once the test
-        *  controlling_expression_with_comma_operator is fixed in
-        *  d_c99_bool_strict_syshdr.c.
-        */
-       while ((c = inpc()) != EOF && isspace(c))
+       while (c = inpc(), isspace(c))
                continue;
 
        /* Read the potential keyword to keywd */