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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: Question
Date: Thu, 28 Jul 2016 11:58:33 -0700
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BartC <bc@freeuk.com> writes:
> On 28/07/2016 16:38, DFS wrote:
>> Take a C structure:
>>
>> struct imageType {
>>     imageOpsType *ops;
>>     coordType width;
>>     coordType height;
>>     int32_t depth;        /* 1..32            */
>>     int32_t linebytes;    /* bytes per line        */
>>     int32_t allocated;    /* bytes allocated        */
>>     int64_t fill;        /* color to fill with        */
>>     int8_t sign;
>>     imageType *primary;    /* for secondary, assoc primary    */
>>     coordType primaryX;    /* for secondary, offset in primary */
>>     coordType primaryY;    /* for secondary, offset in primary */
>>     int8_t *data;
>>     uint32_t flags;        /* image access mode(s)        */
>>     int32_t verbose;
>>     int32_t page;        /* number of the current page    */
>>     double resX;        /* pixels per unit in X        */
>>     double resY;        /* pixels per unit in Y        */
>>     int32_t resUnit;    /* 0=nores 1=unk 2=inch 3=cm    */
>>     char modes[MAX_MODES];    /* modes used with open        */
>>     char name[MAX_NAME];
>>     int64_t clientData[CLIENT_SIZE]; };
>>
>>
>> What does the following statement accomplish, given that
>> "image" and "src" are both pointers to imageType?
>>
>> (*(imageType**)&(image)->clientData[0])=(src)
>
> It depends on whether the & applies to just (image) or to the -> part 
> too (I don't know off-hand).

You could easily find out before posting.

[...]

> (Note than imageType is a struct tag name rather than a type name, so I 
> guess this is not the exact code.)

Perhaps -- or perhaps the code was compiled as C++, and the OP
mistakenly assumed it was C.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"