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'struct window' cleanup #2

From: Dmitry Antipov
Subject: 'struct window' cleanup #2
Date: Mon, 25 Jun 2012 12:56:22 +0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1

For a `struct window', changing the type of `last_point', `last_modified'
and `last_overlay_modified' from Lisp_Object to appropriate integral
value eliminates a lot of useless Lisp_Object <-> {EMACS_INT, ptrdiff_t}
conversions in a window and redisplay code; and, of course, lesser Lisp_Objects
means a bit faster GC. OK to install?


Attachment: window_cleanup.patch
Description: Text document

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