C++ how to delete a structure?

Question

Structure I created:

   struct VideoSample
  { 
      const unsigned char * buffer;
      int len;
  };

   VideoSample * newVideoSample = new VideoSample;
          


        

Answer 1

delete newVideoSample . In C++ struct is the same as class but with default public fields.

Answer 2

To Allocate -> VideoSample * newVideoSample = new VideoSample;

To Delete -> delete newVideoSample;

If you deleting the object in the same context, you better just allocate it on the stack. If you deleting it outside the context don't forget to pass a reference.

And most important, don't delete if your about to exit process, it's pointless :P

Answer 3

You're looking for the delete keyword:

delete newVideoSample;

Answer 4

delete newVideoSample;

However, consider using a smart pointer that will release the memory automatically, for example:

std::auto_ptr<VideoSample> newVideoSample(new VideoSample);

Answer 5

delete newVideoSample;

But if the new and delete are in the same context, you're probably better off skipping them and just creating it on the stack instead:

VideoSample newVideoSample = {buf, size};

In that case, no cleanup is necessary.

Answer 6

In C++ a structure is the exact same as a class except everything is public by default, where a class is private by default. So a structure can have a destructor and is freed with delete.