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c++new-operatorfreesecurezeromemory

How to release BYTE memory?

Quick question: do I have to / how do I release memory from this allocation of memory?

unsigned char *uString = new unsigned char[4096]();

And if I have to, would I do it like this?

free(uString); delete[] uString;

Solution

  • You use the free function when you allocate memory with the C functions like malloc calloc and more.

    In c++ you use the operators new and delete (Also thier array friends new[] and delete[]).

    When you want to delete object created with the operator new[], you call the operator delete[]. For example:

    int main(void)
{
    int[] arr = new int[5];
    int* a = new int;
    delete[] arr;
    delete a;
    return 0;
}

    And that's all. That will also call the destructor an all of that.