freeing my memory (life should be lived forwards)

[baray98]

I allocated a buffer in my app like below:

char* ptr = new char[variable]; // its has a variable size but this is known before calling this line

char* ptr = new char[variable]; // its has a variable size but this is known before calling this line

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then i pass that pointer to my class

myClass* c = new myClass(ptr);

myClass* c = new myClass(ptr);

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in my myClass constructor and destructor

myClass::myClass(char* ptr)
{
   m_ptr = ptr; //m_ptr is a private char* pointer
}
 myClass::~myClass
{
     delete [] m_ptr;
}

myClass::myClass(char* ptr)
{
   m_ptr = ptr; //m_ptr is a private char* pointer
}
 myClass::~myClass
{
     delete [] m_ptr;
}

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I expected this to free up the buffer everytime i deleted the object myClass but i was wrong. I am monitoring my app in task Manager and it is still using a lot of memory even after deleting myClass. please tell me where did i go wrong.

baray98