devxlogo

auto_ptr<>: your safe guard against memory leaks

auto_ptr<>: your safe guard against memory leaks

The Standard Library supplies the class template auto_ptr<> which automatically deallocates heap memory. Likewise, local objects are reclaimed in case of exiting their scope or during “stack unwinding” caused by an exception.

This technique can avoid memory leakage in the case of uncaught exception or even simplify programming by sparing the hassle of explicitly deleting every object allocated using operator new. The auto_ptr<> class template is declared in the standard header.

 #include  //auto_ptr<> declaration#include using namespace std;class Date{ /*...*/};void DisplayDate(){	//now create a local object of type auto_ptr auto_ptr pd (new Date); //now pd is owned by the template object	cout<DateString();//note: pd is automatically deleted by the destructor of auto_ptr; it shouldn't be deleted by programmer}

In other words, the auto_ptr<> instance, pd, can be used like an ordinary pointer to Date but it behaves like a local object in respect to its automatic destruction.

See also  Small Business Strategies with Venmo
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist