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MathGroup Archive 2003

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Re: debug compiled function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39741] Re: debug compiled function
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 5 Mar 2003 00:04:50 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <b41cic$pfu$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

compiled code can't debugged because there is no
actual documentation about the machine instruction
set of the compiler.

You can try an ordinary Mathematica debugger from
http://library.wolfram.com/database/MathSource/826/

Typical this error comes form a symbol or a high
precision number that is used as an argument.

The good old Print[] function is a fine tool
to find the error.

Regards
  Jens

Brent Pedersen wrote:
> 
> with certain parameters entered into my compiled function i get:
> 
> CompiledFunction::cfn: Numerical error encountered at instruction 59;
> proceeding with uncompiled evaluation
> 
> how can i most easily find what is instruction 59?
> i would guess there is something i need to wrap in Evaluate[] but can't
> tell what as this is a long function.


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