Simple C array declaration / assignment question

Question

In higher level languages I would be able something similar to this example in C and it would be fine. However, when I compile this C example it complains bitterly. How can

Answer 1

#include
#include
#include

int *setarray(int *ar,char *str)
{
    int offset,n,i=0;
    while (sscanf(str, " %d%n", &n, &offset)==1)
    {
        ar[i]=n;
        str+=offset;
        i+=1;
    }
    return ar;
}

int *setarray2(int *ar,int num,...)
{
   va_list valist;
   int i;
   va_start(valist, num);

   for (i = 0; i < num; i++) 
        ar[i] = va_arg(valist, int);
   va_end(valist);
   return ar;
}

int main()
{
    int *size=malloc(3*sizeof(int*)),i;
    setarray(size,"1 2 3");

    for(i=0;i<3;i++)
        printf("%d\n",size[i]);

    setarray2(size,3 ,4,5,6);
    for(i=0;i<3;i++)
        printf("%d\n",size[i]);

    return 0;
}