This is the mail archive of the
gdb-patches@sources.redhat.com
mailing list for the GDB project.
Re: [rfc, rfa:doco] Add -Wunused-label to -Werror list
Date: Sun, 11 Jan 2004 11:58:48 -0500
From: Andrew Cagney <cagney@gnu.org>
Eli, doco look ok?
Yes, except that I'd suggest to say more explicitly what is the
programming error being shown in that fragment. Someone might not get
it...
Something like ...?
2004-01-12 Andrew Cagney <cagney@redhat.com>
* gdbint.texinfo: Update copyright year.
(Coding): Add -Wunused-label to list of -Werror warnings.
Index: gdbint.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdbint.texinfo,v
retrieving revision 1.178
diff -u -r1.178 gdbint.texinfo
--- gdbint.texinfo 10 Nov 2003 22:47:31 -0000 1.178
+++ gdbint.texinfo 12 Jan 2004 18:53:52 -0000
@@ -8,7 +8,7 @@
@ifinfo
This file documents the internals of the GNU debugger @value{GDBN}.
-Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003
+Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003,2004
Free Software Foundation, Inc.
Contributed by Cygnus Solutions. Written by John Gilmore.
Second Edition by Stan Shebs.
@@ -48,7 +48,7 @@
@vskip 0pt plus 1filll
Copyright @copyright{} 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,
- 2002, 2003 Free Software Foundation, Inc.
+ 2002, 2003, 2004 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1 or
@@ -5132,6 +5132,23 @@
@item -Wpointer-arith
@item -Wuninitialized
+
+@item -Wunused-label
+This warning has the additional benefit of detecting the absence of the
+@code{case} reserved word in a switch statement:
+@smallexample
+enum @{ FD_SCHEDULED, NOTHING_SCHEDULED @} sched;
+@dots{}
+switch (sched)
+ @{
+ case FD_SCHEDULED:
+ @dots{};
+ break;
+ NOTHING_SCHEDULED:
+ @dots{};
+ break;
+ @}
+@end smallexample
@end table
@emph{Pragmatics: Due to the way that @value{GDBN} is implemented most