(C++) New

Keyword to dynamically allocate memory and returning a pointer to this memory.

Prefer the use of auto_ptr's (or other smart pointers) over the use of plain pointers [1,2].

include <iostream>

include <memory>


class MyClass
{
  public:
  MyClass()  { std::cout << "Constructor" << std::endl;  
  ~MyClass() { std::cout << "Destructor"  << std::endl;
};
int main()
{
  //Bad practice:
  //MyClass * pMyClass = new MyClass;
  //delete pMyClass;
  //Good practice, also shorter.
  std::auto_ptr<MyClass> pMyClass(new MyClass);
  return 0;
}

new is not supported in C.

Code links

'new' links

References

Bjarne Stroustrup. The C++ Programming Language (3rd edition).ISBN: 0-201-88954-4
Herb Sutter and Andrei Alexandrescu. C++ coding standards: 101 rules, guidelines, and best practices. ISBN: 0-32-111358-6

last edited (November 11, 2006) by bilderbikkel, Number of views: 3387, Current Rev: 8 (Diff)

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