lint: in strict C mode, warn about initialization with '[a ... b]'

https://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html
This commit is contained in:
rillig 2021-03-07 19:42:54 +00:00
parent 8c49e96e03
commit 7bd1775519
7 changed files with 34 additions and 9 deletions

View File

@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.1025 2021/03/06 17:56:33 rillig Exp $
# $NetBSD: mi,v 1.1026 2021/03/07 19:42:54 rillig Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@ -6730,6 +6730,8 @@
./usr/tests/usr.bin/xlint/lint1/msg_338.exp tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/xlint/lint1/msg_339.c tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/xlint/lint1/msg_339.exp tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/xlint/lint1/msg_340.c tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/xlint/lint1/msg_340.exp tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/xlint/lint1/t_integration tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/ztest tests-usr.bin-tests compattestfile,atf
./usr/tests/usr.bin/ztest/Atffile tests-usr.bin-tests compattestfile,atf

View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.34 2021/02/28 22:12:16 rillig Exp $
# $NetBSD: Makefile,v 1.35 2021/03/07 19:42:54 rillig Exp $
NOMAN= # defined
@ -96,7 +96,7 @@ FILES+= d_type_question_colon.c
FILES+= d_typefun.c
FILES+= d_typename_as_var.c
FILES+= d_zero_sized_arrays.c
FILES+= ${:U0 ${:U:range=339}:C,^.$,0&,:C,^..$,0&,:@msg@msg_${msg}.c msg_${msg}.exp@}
FILES+= ${:U0 ${:U:range=340}:C,^.$,0&,:C,^..$,0&,:@msg@msg_${msg}.c msg_${msg}.exp@}
# Note: only works for adding tests.
# To remove a test, the $$mi file must be edited manually.

View File

@ -0,0 +1,19 @@
/* $NetBSD: msg_340.c,v 1.1 2021/03/07 19:42:54 rillig Exp $ */
# 3 "msg_340.c"
// Test for message: initialization with '[a...b]' is a GNU extension [340]
/*
* In strict C mode, GNU extensions are flagged as such.
*/
/* lint1-flags: -Ssw */
int
example(void)
{
int numbers[] = {
[2 ... 3] = 12 /* expect: 340 */
};
return numbers[0];
}

View File

@ -0,0 +1 @@
msg_340.c(16): initialization with '[a...b]' is a GNU extension [340]

View File

@ -1,4 +1,4 @@
# $NetBSD: t_integration.sh,v 1.32 2021/02/28 22:12:16 rillig Exp $
# $NetBSD: t_integration.sh,v 1.33 2021/03/07 19:42:54 rillig Exp $
#
# Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
# All rights reserved.
@ -187,7 +187,7 @@ all_messages_body()
srcdir="$(atf_get_srcdir)"
ok="true"
for msg in $(seq 0 339); do
for msg in $(seq 0 340); do
base="$(printf '%s/msg_%03d' "${srcdir}" "${msg}")"
flags="$(extract_flags "${base}.c")"

View File

@ -1,5 +1,5 @@
%{
/* $NetBSD: cgram.y,v 1.165 2021/03/07 18:02:45 rillig Exp $ */
/* $NetBSD: cgram.y,v 1.166 2021/03/07 19:42:54 rillig Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All Rights Reserved.
@ -35,7 +35,7 @@
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: cgram.y,v 1.165 2021/03/07 18:02:45 rillig Exp $");
__RCSID("$NetBSD: cgram.y,v 1.166 2021/03/07 19:42:54 rillig Exp $");
#endif
#include <limits.h>
@ -1353,6 +1353,8 @@ range:
| constant T_ELLIPSIS constant {
$$.lo = toicon($1, 1);
$$.hi = toicon($3, 1);
/* initialization with '[a...b]' is a GNU extension */
gnuism(340);
}
;

View File

@ -1,4 +1,4 @@
/* $NetBSD: err.c,v 1.86 2021/02/28 02:45:37 rillig Exp $ */
/* $NetBSD: err.c,v 1.87 2021/03/07 19:42:54 rillig Exp $ */
/*
* Copyright (c) 1994, 1995 Jochen Pohl
@ -37,7 +37,7 @@
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: err.c,v 1.86 2021/02/28 02:45:37 rillig Exp $");
__RCSID("$NetBSD: err.c,v 1.87 2021/03/07 19:42:54 rillig Exp $");
#endif
#include <sys/types.h>
@ -399,6 +399,7 @@ const char *msgs[] = {
"right operand of '%s' must not be bool", /* 337 */
"option '%c' should be handled in the switch", /* 338 */
"option '%c' should be listed in the options string", /* 339 */
"initialization with '[a...b]' is a GNU extension", /* 340 */
};
/*