[arch-general] gcc: loop do not terminate

[Daniel Micay]

On Tue, May 14, 2013 at 11:47 AM, LANGLOIS Olivier PIS -EXT
<olivier.pis.langlois at transport.alstom.com> wrote:
>> void testing(void)
>> {
>> #define NR_STRUCT_A   (4)
>>       struct B*  ptr = malloc(sizeof(struct B) + NR_STRUCT_A*sizeof(struct
>> A));
>>
>>       ptr->numelem = NR_STRUCT_A;
>>       ptr->item    = (struct A*)(ptr+1);
>>
>>       ptr->item[0].a = 0;
>>       ptr->item[1].a = 1;
>>       ptr->item[2].a = 2;
>>       ptr->item[3].a = 3;
>>       ptr->item[4].a = 100;  /* Wrong, violate memory accessing here! */
>> #undef  NR_STRUCT_A }
>
> IMO, this is a viable alternative. The only disadvantage is that it is taking an extra sizeof(struct A *) bytes of memory, if memory space is a concern.

You don't need an alternative, `array[]` is standard and does what you want.