Comparison between malloc/free and new/delete

Comparison between malloc/free and new/delete
Malloc/free is a c ++/c standard library function, and new/delete is a c ++ operator. They can both apply for dynamic memory and release the memory. For non-internal data objects, the use of malloc/free alone cannot meet the requirements of dynamic objects. The constructor must be automatically executed when the object is created, and the destructor is automatically executed before the object is extinct. Since malloc/free is a library function, it is not an operator and is no longer controlled by the compiler. It is not allowed to impose the tasks of executing constructor and destructor on malloc/free. therefore, the c ++ language requires a new operator that can complete dynamic memory allocation and initialization, and a delete operator that can clean up and release memory. Note that new/delete is not a library function.