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|---|---|
| From | Keith Thompson <kst-u@mib.org> |
| Newsgroups | comp.lang.c |
| Subject | Re: style question - includes |
| Date | Sun, 01 Oct 2017 19:28:35 -0700 |
| Organization | None to speak of |
| Lines | 28 |
| Message-ID | <lnfub2s2p8.fsf@kst-u.example.com> (permalink) |
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supercat@casperkitty.com writes:
> On Saturday, September 30, 2017 at 5:36:49 PM UTC-5, Keith Thompson wrote:
>> Right. N1570 6.10.2 says that #include <...> searches for a *header*,
>> while #include "..." searches for a *source file* (and falls back to the
>> <...> search). I don't think the standard defines what a "header" is,
>> which means it can be anything that acts like an includable source file.
>
> As a further note, inclusion of headers is only allowed in certain contexts,
> while source files may be included in many other contexts.
There are restriction on where the language-defined standard headers can
meaningfully be included. I don't think there's any such restriction on
where other headers can be included (though particular headers might
impose their own restrictions0.
[...]
> It could also simply produce a "Headers may not be included in this
> context" diagnostic whether or not there would be any way to write a file
> that would be able to detect the context where it was included.
Have you seen such a diagnostic?
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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Re: style question - includes jameskuyper@verizon.net - 2017-09-30 12:25 -0700
Re: style question - includes Thiago Adams <thiago.adams@gmail.com> - 2017-09-30 13:40 -0700
Re: style question - includes supercat@casperkitty.com - 2017-09-30 14:04 -0700
Re: style question - includes Keith Thompson <kst-u@mib.org> - 2017-09-30 15:36 -0700
Re: style question - includes supercat@casperkitty.com - 2017-10-01 16:07 -0700
Re: style question - includes Keith Thompson <kst-u@mib.org> - 2017-10-01 19:28 -0700
Re: style question - includes supercat@casperkitty.com - 2017-10-02 12:25 -0700
Re: style question - includes Keith Thompson <kst-u@mib.org> - 2017-10-02 12:49 -0700
Re: style question - includes "James R. Kuyper" <jameskuyper@verizon.net> - 2017-10-02 16:11 -0400
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