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Re: ReplacePart and Compile

• To: mathgroup at smc.vnet.net
• Subject: [mg88159] Re: ReplacePart and Compile
• From: Szabolcs Horvát <szhorvat at gmail.com>
• Date: Sat, 26 Apr 2008 06:30:33 -0400 (EDT)
• Organization: University of Bergen
• References: <fus8ea$838$1@smc.vnet.net> <fuuma1$86q$1@smc.vnet.net>

Szabolcs Horvát wrote:
> Michael Weyrauch wrote:
>> (More generally: Could it be annotated in the documentation, which 
>> functions can be compiled and which functions cannot be compiled. For me
>> it is always an adventure to figure out a compiled version of a routine 
>> I need, because of this lack of basic information.)
>>
> 
> I agree, it is quite frustrating that this is not documented.  The only 
> doc page I could find about this is here:
> 
> http://support.wolfram.com/mathematica/kernel/Symbols/System/Compile.html
> 
> (Note that this is for Mathematica 3, not Mathematica 6.)
> 
> Unfortunately it seems that WRI is not putting too much effort into 
> developing Compile[] any more.  It is not being taught to compile new 
> functions, and its bugs are not fixed.
> 

Perhaps it was a bit too harsh to say that "its bugs are not being 
fixed".  To be fair (and to avoid flames), I will note that this is the 
particular problem that I know about:

http://groups.google.com/group/comp.soft-sys.math.mathematica/browse_thread/thread/40d55fa35605b76d/fcbef0b29723ef15

Of course these kinds of problems are probably difficult to avoid, 
because the solution involves keeping track of which functions have side 
effects and which don't.