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Re: [ft-devel] LLP64 model outside Win64
From: |
Alexei Podtelezhnikov |
Subject: |
Re: [ft-devel] LLP64 model outside Win64 |
Date: |
Mon, 12 Feb 2018 10:08:53 -0500 |
On Mon, Feb 12, 2018 at 1:07 AM, Werner LEMBERG <address@hidden> wrote:
>
>>>>
>>>> (void *)(((char *)0) + (x))
>>>>
>>>
>>> Wow! Very cool!
>>>
>>>
>>> I'm fairly sure that's undefined in C standard as well.
>
> My first impression also...
Can we properly use the FT_List data field as an actual pointer to the
glyph index instead of stuffing the integer into the pointer? That is
the root cause of this mess. It does look like integer to pointer
conversion is ill-defined and should be avoided. Here is another
warning quote from C99 (6.3.2.3):
An integer may be converted to any pointer type. Except as previously
specified, the
result is implementation-defined, might not be correctly aligned,
might not point to an
entity of the referenced type, and might be a trap representation.
- Re: [ft-devel] LLP64 model outside Win64, (continued)
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/09
- Re: [ft-devel] LLP64 model outside Win64, Alexei Podtelezhnikov, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Roland Mainz, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Roland Mainz, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Alexei Podtelezhnikov, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Behdad Esfahbod, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Alexei Podtelezhnikov, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Behdad Esfahbod, 2018/02/11
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/12
- Re: [ft-devel] LLP64 model outside Win64,
Alexei Podtelezhnikov <=
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/12
- Re: [ft-devel] LLP64 model outside Win64, Alexei Podtelezhnikov, 2018/02/19
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/25
- Re: [ft-devel] LLP64 model outside Win64, Alexei Podtelezhnikov, 2018/02/25
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/26
- Re: [ft-devel] LLP64 model outside Win64, Sean McBride, 2018/02/12
- Re: [ft-devel] LLP64 model outside Win64, Pierre Hanser, 2018/02/12
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/12
- Message not available
- Re: [ft-devel] LLP64 model outside Win64, suzuki toshiya, 2018/02/12
- Re: [ft-devel] LLP64 model outside Win64, Werner LEMBERG, 2018/02/13