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Re: [Patch] hard-widen-limits [was Re: Syntax tables for multiple modes


From: Andreas Schwab
Subject: Re: [Patch] hard-widen-limits [was Re: Syntax tables for multiple modes [was: bug#22983: syntax-ppss returns wrong result.]]
Date: Sun, 24 Apr 2016 15:20:31 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.93 (gnu/linux)

Vitalie Spinu <address@hidden> writes:

> @@ -1692,7 +1692,7 @@ exec_byte_code (Lisp_Object bytestr, Lisp_Object 
> vector, Lisp_Object maxdepth,
>  
>       CASE (Bwiden):
>         BEFORE_POTENTIAL_GC ();
> -       PUSH (Fwiden ());
> +       TOP = Fwiden (TOP);

You are clobbering the stack here.  Instead of pushing a new value you
are overwriting an unrelated value on the stack.

Andreas.

-- 
Andreas Schwab, address@hidden
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"And now for something completely different."



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