Delete dynamically allocated memory form std::map

Question

I have a map std::map< string,A* > MyMap, here A is a class; its object is created created using "new" and inserted into map like this,

MyMap["first"] = new A(); MyMap["second"] = new A(); // second step MyMap["third"] = new A();

Like this, I am inserting dynamically created A object into array with in every 5 seconds. After some point I want to release the memory created using "new" I don't want to delete all the items. I want to free up only few items from map. Is it possible only delete the memory taken by particular items? ( For example I want to delete only the space taken for the A object which is created in second step.

Ivan Milles · Accepted Answer · 2011-10-19 10:28:37Z

Definitely. First, obtain a pointer or reference to the object you want to remove. Then, take it out of the map using map.erase(). Now, the object is held only the your pointer or reference, so you can free up its memory using delete.

Collectives™ on Stack Overflow

Delete dynamically allocated memory form std::map

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related