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How to Break[] out of nested loops?

• To: mathgroup at smc.vnet.net
• Subject: [mg21790] How to Break[] out of nested loops?
• From: Julián Aguirre <mtpagesj at lg.ehu.es>
• Date: Thu, 27 Jan 2000 22:57:25 -0500 (EST)
• Organization: Universidad del Pais Vasco/Euskal Herriko Unibertsitatea
• Sender: owner-wri-mathgroup at wolfram.com

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

• Follow-Ups:
  • Re: How to Break[] out of nested loops?
    • From: Jean-Marie Thomas <jmt@agat.net>