By using malloc we can create one block of memory requested dynamically which can be used as array etc. and return a pointer to 1st byte.
Here is the small program to learn how to use malloc function.
int main() { int *num_mal;
int num,i;
printf(“Enter the number of element”);
scanf(“%d”,&n);
printf(“Enter the number of element”);
scanf(“%d”,&n); num_mal= (int*)malloc(num*(sizeof(int))); for(i=0;i<5;i++) { num_mal[i]=1; } for(i=0;i<5;i++) { printf('%d',num_mal[i]); } }
Calloc:
By using Calloc we can create multiple block of memory requested dynamically which can be used as array etc. it fills the memory to zero and and return a pointer to 1st byte.
Calloc initialize the memory to zero.
Here is the small program to learn how to use calloc function.
int main() { int *num_cal; int num,i; printf(“Enter the number of element”); scanf(“%d”,&n); num_cal= (int*)calloc(num,(sizeof(int))); for(i=0;i<5;i++) { num_cal[i]=1; } for(i=0;i<5;i++) { printf('%d',num_cal[i]); } }
Free Function:
To release the memory we need to use Free function;
Syntax: free(num_mal);
Realloc function:
When we need to change the size of the memory allotted then we need to realloc function.
Abhishek Srivasatava
Malloc
By using malloc we can create one block of memory requested dynamically which can be used as array etc. and return a pointer to 1st byte.
Here is the small program to learn how to use malloc function.
Calloc:
By using Calloc we can create multiple block of memory requested dynamically which can be used as array etc. it fills the memory to zero and and return a pointer to 1st byte.
Calloc initialize the memory to zero.
Here is the small program to learn how to use calloc function.
Free Function:
To release the memory we need to use Free function;
Syntax: free(num_mal);
Realloc function:
When we need to change the size of the memory allotted then we need to realloc function.
Syntax: