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Re: Type-error in C code


From: Andreas Schwab
Subject: Re: Type-error in C code
Date: Fri, 12 Nov 2010 19:45:57 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2.90 (gnu/linux)

Stefan Monnier <address@hidden> writes:

> The error is to put an "Atom" into a cons cell: those can only hold
> Lisp_Objects.  The usual compilation flags won't catch the error because
> both types are actually some kind of integer, but if you
> compile --enable-use-lisp-union-type, the C compiler will
> dutyfully burp.

I think we should remove the union Lisp_Object, and instead define a
struct Lisp_Object { EMACS_INT i; } (reusing the macros of the non-union
type), and make that the default Lisp_Object at least during
development.

Andreas.

-- 
Andreas Schwab, address@hidden
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