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| Subject | Re: Compiling C project for Windows and Mac OS X (GCC for Linux) |
|---|---|
| Newsgroups | comp.lang.c |
| References | (5 earlier) <mtbc58$4j4$1@dont-email.me> <mtc4dm$38q$2@dont-email.me> <mtcmej$d84$1@dont-email.me> <dNyKx.1112$ZL6.99@fx22.iad> <mtef21$vib$1@dont-email.me> |
| From | Richard Damon <Richard@Damon-Family.org> |
| Message-ID | <%3LKx.12$AI5.10@fx29.iad> (permalink) |
| Organization | Forte - www.forteinc.com |
| Date | 2015-09-17 22:56 -0400 |
On 9/17/15 9:28 AM, David Brown wrote: > On 17/09/15 14:57, Richard Damon wrote: >> >> To say NO warnings are allowed, you must also allow for the removal of >> warnings with options, otherwise there are some constructs that just >> can't be used. > > Yes, that's correct - but to the maximum possible extent, I do that with > a warning disable pragma around the construct that generates the warning > (along with a comment in the code to say why). Sometimes the world is > not perfect, and I have to disable particular warnings globally or to > accept that builds have certain warnings, but I do all that is > reasonable to avoid it. Every false-positive warning on the compiler > output is a hinder to seeing the possible errors shown by real warnings. > I find sometimes that a compiler will create excessive warnings on something that isn't a problem. Sometimes the best solution is to disable the warning globally with the build system rather than add a mark on every occurrence in the source. One issue with using pragma's to disable warnings is if you code base needs to work with a variety of compilers, the pragma's may well be different for different compilers so the disable code gets ugly with all the conditionals to control it for each compiler. >> >> As an example, some compilers might give a warning at the end of a >> non-void function if there isn't a return with a value there. > > And it /should/ give a warning, and the code should be corrected - > running off the end of a function that claims to return a value, but > doesn't do so, is an error in my book. (Unless you are meaning a > function that normally returns in the middle somewhere, and the warning > is for something that cannot happen - in which case my preference is to > use a better compiler.) My case is the latter, you know that the function will never return by falling off the end, but one compiler doesn't detect that it won't fall off, but the other does and warns of the unreachable return. Sometimes you don't have a lot of choice on compilers, you use what the manufacturer of the chip/system provides. > >> Another >> compiler might give an warning if you put the return there because IT >> can see that it is unreachable. The only way out of this (other than to >> disable the warning) is to (perhaps massively) rearrange code so that >> all functions can at least potentially reach the end of every non-void >> function. > > As I don't change toolchains in a project, different behaviour between > compilers is not an issue here. If I re-use the same basic code in a > different project with a completely different compiler, then such issues > could occur, of course. > The issue is mostly with internal standard libraries to provide common functionality in varied systems.
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Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 06:18 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Ian Collins <ian-news@hotmail.com> - 2015-09-16 17:06 +1200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Noob <root@127.0.0.1> - 2015-09-16 08:00 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-16 09:00 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 02:03 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-16 11:20 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 13:08 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-16 13:26 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 17:47 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 09:37 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 15:41 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-17 07:06 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 16:22 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-16 23:13 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 15:35 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-16 18:12 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Noob <root@127.0.0.1> - 2015-09-16 13:18 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 08:47 -0700
Re: Quoting Noob <root@127.0.0.1> - 2015-09-16 20:30 +0200
Re: Quoting Keith Thompson <kst-u@mib.org> - 2015-09-16 11:41 -0700
Re: Quoting Noob <root@127.0.0.1> - 2015-09-16 20:53 +0200
Re: Quoting Keith Thompson <kst-u@mib.org> - 2015-09-16 12:19 -0700
Re: Quoting Noob <root@127.0.0.1> - 2015-09-16 21:49 +0200
Re: Quoting Keith Thompson <kst-u@mib.org> - 2015-09-16 13:24 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-16 18:14 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 18:22 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-16 18:29 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 18:31 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-16 12:48 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 18:56 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-16 13:09 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 23:41 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-16 18:05 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Martin Shobe <martin.shobe@yahoo.com> - 2015-09-16 12:13 -0500
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 10:13 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) fir <profesor.fir@gmail.com> - 2015-09-16 14:01 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 10:02 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) fir <profesor.fir@gmail.com> - 2015-09-16 13:53 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) fir <profesor.fir@gmail.com> - 2015-09-16 14:10 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 10:33 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 19:40 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Martin Shobe <martin.shobe@yahoo.com> - 2015-09-16 12:50 -0500
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 19:55 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-16 13:57 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 11:02 -0700
Re: Hidden agendas on Usenet Noob <root@127.0.0.1> - 2015-09-16 20:50 +0200
Re: Hidden agendas on Usenet Keith Thompson <kst-u@mib.org> - 2015-09-16 12:20 -0700
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-16 23:33 +0200
Re: Hidden agendas on Usenet James Kuyper <jameskuyper@verizon.net> - 2015-09-16 17:52 -0400
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 00:03 +0200
Re: Hidden agendas on Usenet Keith Thompson <kst-u@mib.org> - 2015-09-16 15:21 -0700
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 00:30 +0200
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 00:26 +0100
Re: Hidden agendas on Usenet Geoff <geoff@invalid.invalid> - 2015-09-16 21:24 -0700
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 05:48 +0100
Re: Hidden agendas on Usenet Geoff <geoff@invalid.invalid> - 2015-09-17 07:16 -0700
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 17:00 +0100
Re: Hidden agendas on Usenet Keith Thompson <kst-u@mib.org> - 2015-09-17 11:23 -0700
MSVC deprecation (was Re: Hidden agendas on Usenet) Keith Thompson <kst-u@mib.org> - 2015-09-16 23:31 -0700
Re: MSVC deprecation (was Re: Hidden agendas on Usenet) Geoff <geoff@invalid.invalid> - 2015-09-17 07:33 -0700
Re: Hidden agendas on Usenet David Brown <david.brown@hesbynett.no> - 2015-09-17 11:46 +0200
Re: Hidden agendas on Usenet Ian Collins <ian-news@hotmail.com> - 2015-09-17 22:26 +1200
Re: Hidden agendas on Usenet gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-17 11:17 +0000
Re: Hidden agendas on Usenet David Brown <david.brown@hesbynett.no> - 2015-09-17 13:33 +0200
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 13:56 +0200
Re: Hidden agendas on Usenet David Brown <david.brown@hesbynett.no> - 2015-09-17 14:20 +0200
Re: Hidden agendas on Usenet Bartc <bc@freeuk.com> - 2015-09-17 13:28 +0100
Re: Hidden agendas on Usenet David Brown <david.brown@hesbynett.no> - 2015-09-17 15:18 +0200
Re: Hidden agendas on Usenet gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-17 13:34 +0000
Re: Hidden agendas on Usenet gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-17 12:29 +0000
Re: Hidden agendas on Usenet Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-17 05:34 -0700
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 14:48 +0200
Re: Hidden agendas on Usenet James Kuyper <jameskuyper@verizon.net> - 2015-09-17 08:52 -0400
Re: Hidden agendas on Usenet James Kuyper <jameskuyper@verizon.net> - 2015-09-17 08:50 -0400
Re: Hidden agendas on Usenet gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-17 12:57 +0000
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 13:52 +0100
Re: Hidden agendas on Usenet fir <profesor.fir@gmail.com> - 2015-09-17 07:13 -0700
Re: Hidden agendas on Usenet fir <profesor.fir@gmail.com> - 2015-09-17 07:42 -0700
Re: Hidden agendas on Usenet fir <profesor.fir@gmail.com> - 2015-09-17 07:55 -0700
Re: Hidden agendas on Usenet fir <profesor.fir@gmail.com> - 2015-09-18 05:51 -0700
Re: Hidden agendas on Usenet James Kuyper <jameskuyper@verizon.net> - 2015-09-16 16:27 -0400
Re: Hidden agendas on Usenet David Brown <david.brown@hesbynett.no> - 2015-09-16 23:35 +0200
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 00:36 +0100
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 08:09 +0200
Re: Hidden agendas on Usenet Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 07:59 +0100
Re: Hidden agendas on Usenet Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-17 01:13 -0700
Re: Hidden agendas on Usenet "Morten W. Petersen" <morphex@gmail.com> - 2015-09-17 13:08 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-16 23:22 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Damon <Richard@Damon-Family.org> - 2015-09-17 08:57 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-17 15:28 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-17 09:45 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Damon <Richard@Damon-Family.org> - 2015-09-17 22:56 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-18 10:19 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Robert Wessel <robertwessel2@yahoo.com> - 2015-09-17 23:01 -0500
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-18 10:20 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Heathfield <rjh@cpax.org.uk> - 2015-09-18 09:23 +0100
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) David Brown <david.brown@hesbynett.no> - 2015-09-18 14:08 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-18 08:48 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Lowell Gilbert <lgusenet@be-well.ilk.org> - 2015-09-18 16:44 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) James Kuyper <jameskuyper@verizon.net> - 2015-09-18 17:33 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Lowell Gilbert <lgusenet@be-well.ilk.org> - 2015-09-19 21:12 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) raltbos@xs4all.nl (Richard Bos) - 2015-09-21 09:10 +0000
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-21 09:16 +0000
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 08:34 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 09:33 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 10:43 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 12:29 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 13:10 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 13:42 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 14:04 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-16 14:34 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 15:01 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Damon <Richard@Damon-Family.org> - 2015-09-16 22:26 -0400
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) jacobnavia <jacob@jacob.remcomp.fr> - 2015-09-17 13:46 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 12:48 +0100
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Philip Lantz <prl@canterey.us> - 2015-09-19 12:40 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) raltbos@xs4all.nl (Richard Bos) - 2015-09-21 09:14 +0000
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-21 06:13 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-21 17:39 +0100
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) raltbos@xs4all.nl (Richard Bos) - 2015-10-02 13:21 +0000
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-10-02 13:25 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) raltbos@xs4all.nl (Richard Bos) - 2015-10-04 13:51 +0000
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-10-04 15:45 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Geoff <geoff@invalid.invalid> - 2015-09-16 21:39 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Richard Heathfield <rjh@cpax.org.uk> - 2015-09-17 00:42 +0100
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Kelsey Bjarnason <kbjarnason@gmail.com> - 2015-09-24 07:34 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Robert Wessel <robertwessel2@yahoo.com> - 2015-09-16 23:55 -0500
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Robert Wessel <robertwessel2@yahoo.com> - 2015-09-16 13:03 -0500
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Ian Collins <ian-news@hotmail.com> - 2015-09-16 19:31 +1200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Noob <root@127.0.0.1> - 2015-09-16 11:06 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Ian Collins <ian-news@hotmail.com> - 2015-09-16 21:17 +1200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Noob <root@127.0.0.1> - 2015-09-16 11:56 +0200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Keith Thompson <kst-u@mib.org> - 2015-09-16 08:59 -0700
Re: "gcc" on OS X Noob <root@127.0.0.1> - 2015-09-16 21:43 +0200
Re: "gcc" on OS X Keith Thompson <kst-u@mib.org> - 2015-09-16 13:20 -0700
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) Ian Collins <ian-news@hotmail.com> - 2015-09-17 08:25 +1200
Re: Compiling C project for Windows and Mac OS X (GCC for Linux) gazelle@shell.xmission.com (Kenny McCormack) - 2015-09-17 11:21 +0000
Re: gcc not a symlink on Mac OS X Noob <root@127.0.0.1> - 2015-09-17 17:06 +0200
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