Nicolas Alvarez schrieb:
> #declare I=0;
> #while (I < Limit)
>    //...
> #end
> 
> If neither 'I' nor 'Limit' are ever mentioned inside the loop, it's
> infinite.

Not necessarily:

#macro Next()
   #declare I=I+1;
#end

#declare I=0;
#while (I < Limit)
   Next()
#end

No mention of I anywhere in the loop, yet perfectly finite.

You *must* dig into *every* macro to catch this.

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