Class destructor memory management in C ++

Question

What potential memory leaks will not have a hidden descriptor? I know that if you have anything stored on the heap, it will not process it, and if you have a connection to a file or database, this must be handled manually. Is there anything else? Like, say, non-basic data types like vectors?

Also, in an explicit destructor, do you need to destroy heapless variables that would be destroyed implicitly or would they be processed automatically?

thank

Answer 1

What potential memory leaks will not have a hidden descriptor? I know that if you have anything stored on the heap, it will not process it, and if you have a connection to a file or database, this must be handled manually. Is there anything else? Like, say, non-basic data types like vectors?

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Answer 7

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Now a good class class contains all the important resources as members with corresponding dtors. As a result, the dtor body does not have to do anything to prevent resource leakage. Of course, there is one exception to this rule: the resource management classes themselves manage exactly one resource and, therefore, clear this one resource from its dtor.