Dynamic Array Help

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LichKing

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Mar 18, 2005
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Ok so I wrote a program for my Algorithms class and Im a bit rusty on my c++
Basically it has a main .cpp file which calls all teh functions from a different file sorts.cpp (program runs mergesort, heapsort, quicksort and insertionsort) using dynamic arrays which are declared globally in the sorts.cpp file and they are initalized in a function, now if I dont call delete[] arrayname I get a CrtMemory() or something like that error if I input a large array size so I believe thats a memory leak or my freestore is being used up. Ok so my question is where do I need to call delete in order for it to work correctly, Ive tried making a function in sorts.cpp and calling it from my main to dlete the arrays but I get a damage at normal block .... at some mem address. Can someone help me out???? I would like to have it work as is, but if thats not an option would it work better beeing a class or struct and creating an overloaded destructor?
 
instead of having all those functions in one file, try creating a class for each type of sort. Then in the destructor of each class have it free up any memory used, that should take care of your problem (if I am reading it correctly). This way, you can sort one way then free up the memory. Sort another and again free it up.
 
now if I dont call delete[] arrayname
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You must free up any memory that you have dynamically allocated or it will be viewed as a memory leak. Especially if you are using large amount of data as you said.

Ok so my question is where do I need to call delete in order for it to work correctly
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You need to call delete after you are done working with all the memory and have your final answer. Once you no longer need the array, delete it.
 
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