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Programming > C++ Moderated > Re: Compilation...
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Re: Compilation speedup trick: any side-effects?

by Francis Glassborow <francis.glassborow@[EMAIL PROTECTED] > Apr 26, 2008 at 04:27 PM

borphi@[EMAIL PROTECTED]
 wrote:

> 
> So to summarize it:
> 
> Concatenating all cpp files to one big one possibly breaks
> compilation, but if this is fixed (no conflicts), there should be no
> unexpected conflicts during linking or execution (am I right?). The
> order of execution of static objects switches from undefined to
> defined, but as long as the official build is made traditionally, no
> one should rely on it anyway!
> 
NO! The dangerous case is where your compiler compiles the code but to
do something different from what was intended and than would have been
done with separate compilation.

The fact that that might not happen very often is a serious issue
because it means that when it does happen it is likely to go undetected
for some time and when errors show up you will have no idea where to
look for the cause.

The concatenation of anonymous namespaces is a serious issue as this is
where experienced developers place there helper tools for specific
cl*****.

-- 
      [ See http://www.gotw.ca/resources/clcm.htm
for info about ]
      [ comp.lang.c++.moderated.    First time posters: Do this! ]
 




 16 Posts in Topic:
Compilation speedup trick: any side-effects?
borphi@[EMAIL PROTECTED]   2008-04-25 11:13:19 
Re: Compilation speedup trick: any side-effects?
rado <rgetov@[EMAIL PR  2008-04-25 15:49:57 
Re: Compilation speedup trick: any side-effects?
Francis Glassborow <fr  2008-04-25 16:13:19 
Re: Compilation speedup trick: any side-effects?
Davis King <davis685@[  2008-04-25 16:17:05 
Re: Compilation speedup trick: any side-effects?
Brendan <catphive@[EMA  2008-04-25 16:13:20 
Re: Compilation speedup trick: any side-effects?
Maciej Sobczak <see.my  2008-04-25 17:13:19 
Re: Compilation speedup trick: any side-effects?
Mathias Gaunard <loufo  2008-04-26 03:33:38 
Re: Compilation speedup trick: any side-effects?
Carl Barron <cbarron41  2008-04-26 03:34:04 
Re: Compilation speedup trick: any side-effects?
"borphi@[EMAIL PROTE  2008-04-26 09:43:22 
Re: Compilation speedup trick: any side-effects?
Francis Glassborow <fr  2008-04-26 16:28:03 
Re: Compilation speedup trick: any side-effects?
Francis Glassborow <fr  2008-04-26 16:27:40 
Re: Compilation speedup trick: any side-effects?
mlag.ng@[EMAIL PROTECTED]  2008-04-27 07:12:05 
Re: Compilation speedup trick: any side-effects?
Mathias Gaunard <loufo  2008-04-27 07:29:16 
Re: Compilation speedup trick: any side-effects?
Andre Poenitz <poenitz  2008-04-27 15:45:41 
Re: Compilation speedup trick: any side-effects?
Francis Glassborow <fr  2008-04-28 16:03:16 
Re: Compilation speedup trick: any side-effects?
Peter Holtwick <borphi  2008-04-29 10:43:23 

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tan12V112 Thu Jul 24 15:52:56 CDT 2008.