>On Sat, 30 Mar 2013 16:23:43 -0500
>Bruce Dubbs <[email protected]> wrote:
>
> I've finally figured out what is making the mangle33.C program fail.
> It is an arbitrary limitation in tcl. This particular gcc test
> creates a c++ namespace *name* of 4044 characters in length. It
> turns out that there is a value buried deep in tcl code
> (generic/regc_nfa.c):
>
> /*
> * Arbitrary depth limit. Needs tuning, but this value is sufficient
> to
> * make all normal tests (not reg-33.14) pass.
> */
> #define DUPTRAVERSE_MAX_DEPTH 500
>
> Changing this to 5000 makes the gcc test pass. Is it worthwhile to
> make this change in the Chapter 5 build of tcl? How about BLFS?
>
> -- Bruce
It is worthwhile to hack tcl to not use an arbitrary value, as per the
zero-one-infinity rule.
However, as that is a lot of work and also something the developer
should have done, changing DUPTRAVERSE_MAX_DEPTH to 5000 (or whatever)
is, IMHO, worthwhile.
--
You don't need an AI for a robot uprising.
Humans will do just fine.
--Skynet
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