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bug#11604: USE_LISP_UNION_TYPE + USE_LSB_TAG cleanup.


From: Andreas Schwab
Subject: bug#11604: USE_LISP_UNION_TYPE + USE_LSB_TAG cleanup.
Date: Sun, 03 Jun 2012 09:26:46 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux)

Paul Eggert <address@hidden> writes:

> Because the union type is for debugging, not for production.
> It's used mostly to make sure that (for example) one doesn't
> mistakenly write "x = y" when one meant to write "x = XINT (y)".

That doesn't make sense.  You don't need a bitfield for that, just a
struct around EMACS_INT.  If we want to go that route we should rip out
the union Lisp_Object completely.

Andreas.

-- 
Andreas Schwab, address@hidden
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