tableau dynamique

float *inter;
float *parray = NULL;
int size = 3;
parray = malloc(sizeof(float)*size);
*parray = 12.5;
parray[1]= 25.2;
parray[2]= 17.3;

size++;

inter=malloc(sizeoff(float)*size);
for(i = 0;  i < size -1; i++){
    inter[i]=parray[i];
}
inter[size-1] = 0;
free(parray);
parray=inter;