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| From | Ian Collins <ian-news@hotmail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Baby X |
| Date | 2013-08-06 08:25 +1200 |
| Message-ID | <b6ag1rFgv3dU1@mid.individual.net> (permalink) |
| References | (1 earlier) <slrnkvrrmr.2m9.grahn+nntp@frailea.sa.invalid> <zapLt.56615$Wp1.50481@fx16.am4> <60109729-9f4c-4ed8-97fb-4a0a4247c3b1@googlegroups.com> <lnli4huolk.fsf@nuthaus.mib.org> <2cc97c3d-2f47-4276-a2dc-9aa0d68ccea3@googlegroups.com> |
Malcolm McLean wrote: > On Sunday, August 4, 2013 10:34:47 PM UTC+1, Keith Thompson wrote: >> Malcolm McLean <malcolm.mclean5@btinternet.com> writes: >> >> "compileme.txt" says to compile with >> >> gcc *.c -lX11 >> >> which compiles with no warnings. But when I try: >> >> gcc -std=c99 -pedantic -Wall -Wextra -O3 *.c -lX11 >> >> I get 552 lines of warnings. You might want to take a look at those. >> >> > A lot of those are caused by signed / unsigned mismatches. But putting in > casts and unsigned types isn't really solving the problem, just replacing > messy warnings with messy, more error-prone code. Nonsense. Most of the warnings are down to you passing an int* to a depth return parameter. Depth in X can't be negative. > We need signed types > for indices because -1 is often either used as a null value, or generated > as a post value. Depth isn't an index. > Signed types are safer for size calculations because they > can trap if the size overflows. Tell that to the designers of the standard library (and X). > But I'll certainly look and see what can be suppressed. Just fix, there's no need to suppress valid warnings. -- Ian Collins
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Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-03 16:40 -0700
Re: Baby X Jorgen Grahn <grahn+nntp@snipabacken.se> - 2013-08-04 06:04 +0000
Re: Baby X "BartC" <bc@freeuk.com> - 2013-08-04 10:29 +0100
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-04 02:53 -0700
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-04 14:34 -0700
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-05 04:36 -0700
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-05 08:04 -0700
Re: Baby X Ian Collins <ian-news@hotmail.com> - 2013-08-06 08:25 +1200
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-06 04:38 -0700
Re: Baby X Ian Collins <ian-news@hotmail.com> - 2013-08-07 07:19 +1200
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-06 12:38 -0700
Re: Baby X Ian Collins <ian-news@hotmail.com> - 2013-08-07 07:49 +1200
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-06 15:17 -0700
Re: Baby X Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-08-07 00:29 +0100
Re: Baby X Ian Collins <ian-news@hotmail.com> - 2013-08-07 13:45 +1200
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-07 03:22 -0700
Re: Baby X James Kuyper <jameskuyper@verizon.net> - 2013-08-07 06:36 -0400
Re: Baby X Dr Nick <nospam-4@temporary-address.org.uk> - 2013-08-10 20:04 +0100
Re: Baby X Kelsey Bjarnason <kbjarnason@gmail.com> - 2013-08-09 17:28 +0000
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-09 12:43 -0700
Re: Baby X glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-09 20:01 +0000
[OT] Re: Baby X Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-08-09 16:30 -0400
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-09 14:12 -0700
Re: Baby X Dr Nick <nospam-4@temporary-address.org.uk> - 2013-08-10 20:11 +0100
Re: Baby X Robert Wessel <robertwessel2@yahoo.com> - 2013-08-10 14:41 -0500
Re: Baby X James Kuyper <jameskuyper@verizon.net> - 2013-08-10 21:34 -0400
Re: Baby X Dr Nick <nospam-4@temporary-address.org.uk> - 2013-08-11 11:02 +0100
Re: Baby X James Kuyper <jameskuyper@verizon.net> - 2013-08-11 12:54 -0400
Re: Baby X Richard Damon <Richard@Damon-Family.org> - 2013-08-11 13:51 -0400
Re: Baby X James Kuyper <jameskuyper@verizon.net> - 2013-08-11 14:10 -0400
Re: Baby X Richard Damon <Richard@Damon-Family.org> - 2013-08-11 14:43 -0400
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-11 14:03 -0700
Re: Baby X Richard Damon <Richard@Damon-Family.org> - 2013-08-11 17:57 -0400
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-11 18:37 -0700
Re: Baby X glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-12 04:12 +0000
Re: Baby X Dr Nick <nospam-4@temporary-address.org.uk> - 2013-08-12 07:42 +0100
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-12 09:10 -0700
Re: Baby X Keith Thompson <kst-u@mib.org> - 2013-08-11 13:57 -0700
Re: Baby X James Kuyper <jameskuyper@verizon.net> - 2013-08-10 21:29 -0400
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-10 22:04 -0700
Re: Baby X Ike Naar <ike@iceland.freeshell.org> - 2013-08-09 20:16 +0000
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-09 15:29 -0700
Re: Baby X Ike Naar <ike@iceland.freeshell.org> - 2013-08-10 05:45 +0000
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-10 03:18 -0700
Re: Baby X Ike Naar <ike@iceland.freeshell.org> - 2013-08-10 17:02 +0000
Re: Baby X Ike Naar <ike@ukato.freeshell.org> - 2013-08-06 21:00 +0000
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-06 15:07 -0700
Re: Baby X Ian Collins <ian-news@hotmail.com> - 2013-08-05 09:42 +1200
Re: Baby X Roberto Waltman <usenet@rwaltman.com> - 2013-08-04 14:46 -0400
Re: Baby X falk@rahul.net (Edward A. Falk) - 2013-08-15 03:02 +0000
Re: Baby X falk@rahul.net (Edward A. Falk) - 2013-08-15 03:23 +0000
Re: Baby X Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-15 06:09 -0700
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