c++ - Clear the memory after returning a vector in a function -

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i have function processes , stores lot of data in , returns results vector of class. amount of data stored in function tremendous , want clear storage memory of function after finished job. necessary (does function automatically clear memory) or should clear memory function?

update:

vector<customers> process(char* const *filename, vector<int> id) {     vector<customers> list_of_customers;     (perform actions)     return list_of_customers; }

variables defined locally within function automatically released @ end of function scope. destructors objects called, should free memory allocated objects (if objects coded correctly). example of such object std::vector.

anything you've allocated new must have corresponding delete release storage. try avoid doing own allocation , use raii instead, i.e. containers or smart pointers.


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