Re: data structure question

[gumbold <gumbold@bonbon.net>]

Glynn Clements wrote:

>gumbold wrote:
>
>  
>
>>why somebody wants to write such thing
>>struct abc {
>>    __u16 a;
>>    __u16 b;
>>    char abc[0];
>>} __attribute__((packed));
>>Specialy for zerod array of chars.
>>    
>>
>
>A structure which ends with a zero-length array is intended for use as
>the "header" for a variable-sized block of data, e.g.:
>
>	struct abc *new_abc(__u16 a, __u16 b, const char *string)
>	{
>		int len = strlen(string);
>		struct abc *p = malloc(sizeof(struct abc) + len + 1);
>	
>		p->a = a;
>		p->b = b;
>		memcpy(p->abc, string, len + 1);
>	
>		return p;
>	}
>
>  
>
So if my compiler can't handle such code, can i change it to
struct abc {
    __u16 a;
    __u16 b;
    char abc[1];
} __attribute__((packed));