deletingDemo.cpp

// =====  Deleting pointers in a container.

//To delete a dynamically allocated pointer in c++ 
delete ptr;

// To delete pointers in a vector e.g
std::vector<Frame*> frames; //previously created vector
for ( unsigned int i = 0; i < frames.size(); ++i ) {
    delete frames[i]; // ExplodingSprite made them, so it deletes them
}

// Delete from a map of pointers
std::map<std::string, Frame*>::iterator frame = frames.begin();
while ( frame != frames.end() ) {
    delete frame->second;
    ++frame;
}

// Deleting from a map of vectors is similar. Iterate through the map, iterate through each vector in map and  call delete
std::map<std::string, std::vector<Frame*> >::iterator frames = multiFrames.begin();
while ( frames != multiFrames.end() ) {
    for (unsigned int i = 0; i < frames->second.size(); ++i) {
      delete frames->second[i];
    }
    ++frames;
}

// Hope you get the idea. Basically loop through the container and delete the pointer. 
// The idea is the same for lists and other containers.
// Also for this to work successfully, ensure that the class that you are deleting overrides a destructor.