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Memory leaks in C++

 
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zile
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PostPosted: Wed Jun 22, 2011 5:18 am    Post subject: Memory leaks in C++ Reply with quote

Its my first time using classes, and its something like this

Code:
class Stream {
private:
   unsigned char* data;
   int position;
   int len;
public:
   Stream(unsigned char* packet,int length){
      len = length;
      if (len > MAX_LENGTH || len <= 0)
         return;
      position = 0;
      this->data = packet;
   }
};


i wanna ask if c++ has garbage cleaner thing like java? will the new class created destroy itself if it isnt used anymore?

or do i HAVE to make a destructor/ or just delete the class?

mind giving me a proper way to clean this up please?
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Jesper
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PostPosted: Wed Jun 22, 2011 8:41 am    Post subject: Reply with quote

I think in C++ you have to do the cleaning all by yourself.
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atom0s
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PostPosted: Wed Jun 22, 2011 12:53 pm    Post subject: Reply with quote

Look into smart pointers if you want things to start cleaning themselves. Boost has a lot of useful things for this kind of stuff.
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zile
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PostPosted: Thu Jun 23, 2011 8:02 am    Post subject: Reply with quote

so for the example above,
i tried
Code:

Stream data = new Stream(...);
delete &data;


but i got a heap error, any idea whats wrong?
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hcavolsdsadgadsg
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PostPosted: Thu Jun 23, 2011 8:07 am    Post subject: Reply with quote

Stream* data = new Stream(...);
delete data;
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zile
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PostPosted: Thu Jun 23, 2011 9:01 am    Post subject: Reply with quote

edit: thanks above, it works!
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