Following are the differences between malloc() and operator new.

1) new calls constructors, while malloc() does not. In fact primitive data types (char, int, float.. etc) can also be initialized with new. For example, below program prints 10.

#include
     
       using namespace std; int main(){   int *n = new int(10); // initialization with new()   cout<<*n;   getchar();   return 0;}
     

2) new is an operator, while malloc() is a fucntion.

3) new returns exact data type, while malloc() returns void *.