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Re: The --with-wide-int build and Lisp_Sub_Char_Table assertion


From: Andreas Schwab
Subject: Re: The --with-wide-int build and Lisp_Sub_Char_Table assertion
Date: Mon, 12 Jan 2015 18:58:50 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

Dmitry Antipov <address@hidden> writes:

> On 01/12/2015 07:29 PM, Eli Zaretskii wrote:
>
>> In the 32-bit MinGW configuration with wide integers, we have:
>>
>>    offsetof (struct Lisp_Sub_Char_Table, contents) = 16
>>    offsetof (struct Lisp_Sub_Char_Table, depth)    =  4
>>    word_size                                       =  8
>
> OK, but...
>
>>    header_size                                     =  8
>>    offsetof(struct Lisp_Vector, contents)          =  8
>
> ==> sizeof(ptrdiff_t) is 8 in a 32-bit configuration?  Looks pretty
> strange.  Or, if sizeof(ptrdiff_t) is 4, what is sizeof(struct 
> vectorlike_header)?
> IIUC it should be 4, and so header_size should be 4 too...

header_size includes the padding between Lisp_Vector.header and
Lisp_Vector.contents.

Andreas.

-- 
Andreas Schwab, address@hidden
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