malloc c 2b 2b example

1#include <iostream>
2#include <cstdlib>
3using namespace std;
4
5int main()
6{
7	int *ptr;
8	ptr = (int*) malloc(5*sizeof(int));
9
10	if(!ptr)
11	{
12		cout << "Memory Allocation Failed";
13		exit(1);
14	}
15	cout << "Initializing values..." << endl << endl;
16
17	for (int i=0; i<5; i++)
18	{
19		ptr[i] = i*2+1;
20	}
21	cout << "Initialized values" << endl;
22
23	for (int i=0; i<5; i++)
24	{
25		/* ptr[i] and *(ptr+i) can be used interchangeably */
26		cout << *(ptr+i) << endl;
27	}
28
29	free(ptr);
30	return 0;
31}

1int alloc_size = 10;
2int* buffer = (int*) malloc (alloc_size);
3//Allocate memory block which can fit 10 integers 

1void* malloc(size_t size);