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Re: Buffer size limitation in insdel.c
From: |
Eli Zaretskii |
Subject: |
Re: Buffer size limitation in insdel.c |
Date: |
Thu, 23 Sep 2010 16:13:55 +0200 |
> From: Lars Magne Ingebrigtsen <address@hidden>
> Date: Thu, 23 Sep 2010 15:37:35 +0200
>
> Eli Zaretskii <address@hidden> writes:
>
> > And I don't see how you could possibly get it, since
> > window_left_edge_col is an int, whereas WINDOW_LEFT_EDGE_COL is
> > defined like this:
> >
> > #define WINDOW_LEFT_EDGE_COL(W) \
> > (XFASTINT ((W)->left_col))
> >
> > So it already extracts the integer from a Lisp_Object. What am I
> > missing?
>
> Hm. What version of XFASTINT is being used by default? If it's this
> one, I can perhaps understand the warning. I think.
>
> #define XFASTINT(a) ((a) + 0)
Use "gcc -E" to see. In my case, the result is this:
matrix->window_left_col = (((((long) ((w)->left_col)) >> (3 - 1))));
which looks correct, unless I'm totally confused.
So I think the definition used, at least in my case, is this:
#ifndef XFASTINT
# define XFASTINT(a) (XINT (a))
because XINT has this definition:
# define XINT(a) (((EMACS_INT) (a)) >> (GCTYPEBITS - 1))
- Re: Buffer size limitation in insdel.c, (continued)
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Andreas Schwab, 2010/09/23
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c,
Eli Zaretskii <=
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Lars Magne Ingebrigtsen, 2010/09/23
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/23
- Re: Buffer size limitation in insdel.c, Richard Stallman, 2010/09/24
- Re: Buffer size limitation in insdel.c, Eli Zaretskii, 2010/09/24