Malloc() vs new / Delete vs Free differences?

Question

Malloc() vs new / Delete vs Free ?

Answer 1

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

• new is an operator, while malloc() is a function.
• new returns exact data type, while malloc() returns void *.
• new calls constructors( class instances are initalized and deinitialized automatically), while malloc() does not( classes won’t get initalized or deinitialized automatically
• Syntax:
  1. int *n = new int(10); // initialization with new()
  2. str = (char *) malloc(15); //malloc()

free( ) is used on resources allocated by malloc( ), or calloc( ) in C

Delete is used on resources allocated by new in C++