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[bug #57741] Strange begin drop again ;

From: Julián Albo
Subject: [bug #57741] Strange begin drop again ;
Date: Tue, 4 Feb 2020 11:25:19 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0


                 Summary: Strange begin drop again ; 
                 Project: Gforth
            Submitted by: notfound
            Submitted on: mar 04 feb 2020 16:25:17 UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any



I was trying to generate a stack underflow exception for some testing of
CATCH, and found this:

: a begin drop again ;
' a catch .

Does not return to interactive mode, looks like it's trapped in an infinite

But this

: a begin 1 drop drop again ;
' a catch .

Prints -4 as expected.

Using gforth 0.7.3 from the Debian 10 ia64 package.


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