Geek asks and answers

When do I need to free memory?

I learned C # and now I am learning C ++. The whole point of releasing memory is new to me, and I want to know when I need to worry about releasing memory, and when not.

From what I understand, the only case I have to worry about releasing memory is when I used the statement new, so I have to free the memory using delete.
But in these cases there is no need to release memory:

  • Class variables (members) or static variables.
  • Local variables in a function.
  • The STL family (string, list, vector, etc.).

It's true? And are there other times when I have to worry about freeing up memory?

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2 answers

: new delete, new[] delete[] malloc free.

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+9

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  • malloc/calloc free

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