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MathGroup Archive 2005

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Re: Compile nested loops with depending index variables...

  • To: mathgroup at smc.vnet.net
  • Subject: [mg61163] Re: Compile nested loops with depending index variables...
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 11 Oct 2005 06:19:11 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <difpn1$f0m$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
f = Compile[{n}, Block[{i = 0}, Do[g[i, j], {i, 0, 
n}, {j, 0, i}]]]

compile fine, and evaluate fine, even when it is 
nonsense to use a compiled function here.

Regards

  Jens

"Christoph Lhotka" <lhotka at astro.univie.ac.at> 
schrieb im Newsbeitrag 
news:difpn1$f0m$1 at smc.vnet.net...
| How is it possible to compile the following code 
structures in Mathematica:
|
| Do|Table[exp[i,j,...],{i,0,n},{j,0,i},...],
|
| for example in
|
| In[..]:=f=Compile[{n},Do[g[i,j],{i,0,n},{j,0,i}]
| Out[..]:= CompiledFunction[...]
|
| ?
|
| It does not work, when you use the compiled 
function, since the compiler
| expects a integer expression for i...
|
| Do[Do[Do ...  does not work either!
|
| This is such a basic construct!
|
| -- Mag. Christoph Lhotka --
| University of Vienna / Institute for Astronomy
| mail. lhotka at astro.univie.ac.at
| 



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