If I were to allocate new memory for a local character array in a function using “new”, would it be necessary to use delete prior to the function return?
Wouldn’t it automatically be deleted after the function return anyway?
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If I were to allocate new memory for a local character array in a function using “new”, would it be necessary to use delete prior to the function return?
Wouldn’t it automatically be deleted after the function return anyway?
Yes, it is necessary: if you allocate something on the dynamic store with
newornew[], the compiler has no idea that you have no plans to pass the allocated object along after the function returns, so it is your responsibility to calldelete(ordelete[]) to free the object that you have allocated.You can use
unique_ptr<T>to avoid calling thedeleteexplicitly, but the call will be made by the destructor ofunique_ptr<T>on your behalf.