C Tutorial/Memory/Deallocate Memory
Deallocate the memory by using the function free.
<source lang="cpp">#include <stdio.h>
- include <malloc.h>
main() {
int *base;
int i,j;
int cnt=0;
int sum=0;
printf("how many integers you have to store \n");
scanf("%d",&cnt);
base = (int *)malloc(cnt * sizeof(int));
printf("the base of allocation is %16lu \n",base);
if(!base){
printf("unable to allocate size \n");
}
else
{
for(j=0;j<cnt;j++)
*(base+j)=5;
}
sum = 0;
for(j=0;j<cnt;j++)
sum = sum + *(base+j);
printf("total sum is %d\n",sum);
free(base);
printf("the base of allocation is %16lu \n",base);
base = (int *)malloc(cnt * sizeof(int));
printf("the base of allocation is %16lu \n",base);
base = (int *)malloc(cnt * sizeof(int));
printf("the base of allocation is %16lu \n",base);
base = (int *)calloc(10,2);
printf("the base of allocation is %16lu \n",base);
}</source>
how many integers you have to store 4321 the base of allocation is 4016352 total sum is 21605 the base of allocation is 4016352 the base of allocation is 4016352 the base of allocation is 4033648 the base of allocation is 4007120
