Re: alignements struct/tableaux

Article View: fr.comp.lang.c

Article #15570

#15570

From: Antoine Leca
Date: Mon, 19 Sep 2005 12:48

47 lines
2661 bytes

En <news:432d35cb$0$9448$626a14ce@news.free.fr>,
Pierre Habouzit va escriure:
> Harpo wrote:
>
>> Pierre Habouzit wrote:
>>> struct message {
>>>     [ ... pleins de choses dont pas mal de 'headers' ...];
>>>     struct {
>>>         const blob_t *original;
>>>         blob_t *scratch;
>>>     };
>>
>> Pourquoi garder la structure au dessus, et -peut-�tre suis-je mal
>> r�veill�- comment y acc�der sans la nommer ?
>
> bah tu peux y acc�der par hdr->scratch.

C>type struct.C
typedef int blob_t[5];

struct message {
     struct {
         const blob_t *original;
         blob_t *scratch;
     };
} *hdr;


int main() {

        hdr->scratch;
        return 0;
}

C>bin\gcc -v -ansi struct.c
Reading specs from bin/../lib/gcc/mingw32/3.4.2/specs
[couic]
GNU C version 3.4.2 (mingw-special) (mingw32)
        compiled by GNU C version 3.4.2 (mingw-special).
[couic]

struct.c:7: warning: declaration does not declare anything
struct.c: In function `main':
struct.c:13: error: structure has no member named `scratch'


Antoine

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From: "Antoine Leca" <root@localhost.invalid>
Newsgroups: fr.comp.lang.c
Subject: Re: alignements struct/tableaux
Date: Mon, 19 Sep 2005 14:48:53 +0200
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