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MathGroup Archive 2000

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Re: How to Break[] out of nested loops?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg21804] Re: [mg21790] How to Break[] out of nested loops?
  • From: Jean-Marie Thomas <jmt at agat.net>
  • Date: Fri, 28 Jan 2000 01:45:54 -0500 (EST)
  • Organization: TeA
  • References: <200001280357.WAA10923@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Use the Catch Throw commands :

Catch[
myMultiLeveledLoopContainingAThowClause[]
]

On Fri, 28 Jan 2000, Julin Aguirre wrote:
> In a loop like
> 
> Do[
> x=LengthyComputation[m];
>     Do[
>        If[condition[x,n], Break[]],
>     {n, nmax}],
> {m, mmax}]
> 
> the Break[] exits the inner loop. Is there a way of exiting out of the outer
> loop? I do not want to write like
> 
> Do[
> x=LengthyComputation[m];
> If[condition[x,n], Break[]],
> {m, mmax},{n, nmax}]
> 
> because then LengthyComputation[m] is calculated nmax times for each value
> of m isnstead of just once.
> 
> Thanks in advance.
> 
> -- 
> Julian Aguirre
> Universidad del Pais Vasco


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