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From: jnh@ecemwl.ncsu.edu (Joseph N. Hall)
Newsgroups: comp.lang.c++
Subject: Re: #pragma once (was Re: A solution to the multiple inclusion
Message-ID: <4359@ncsuvx.ncsu.edu>
Date: 30 Oct 89 15:13:49 GMT
References: <14240@well.UUCP> <2082@plx.UUCP> <1989Oct27.163755.12976@paris.ics.uci.edu> <23464@cup.portal.com>
Sender: news@ncsuvx.ncsu.edu
Reply-To: jnh@ecemwl.UUCP (Joseph N. Hall)
Organization: North Carolina State University
Lines: 24

In article <23464@cup.portal.com> John_-_Nagle@cup.portal.com writes:
>     It's worth considering that this new feature be added to C++ only,
>not C, which is more firmly standardized.  In C++, dependencies tend to
>be more complex than in C, and a larger percentage of the content of the
>program tends to reside in include files in C++, since most class definitions
>are in include files.  
> [how about...]
>	#require FILENAME
>
>as the one-time inclusion mechanism for C++. 

I definitely support the use of a "#require" mechanism.  Personally, I'd
like to see some sort of explicit support for a precompiled "interface
library" from which necessary declarations, macros, etc., can be extracted
quickly and efficiently.  I find it infuriating that one is penalized for
keeping source files to a reasonable length (say, 1000 lines) when headers
grow to lengths of 2000-10,000 lines and take several times longer to
compile than the actual definitions in the source file ...


v   v sssss|| joseph hall                      || 4116 Brewster Drive
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