Problem in deleting a specific record in an array in C++

[grscot]

Hi everybody, How can I delete a specific record from an array in the Visual C++ environment? I have an array of object pointers. I want to enter a book title for example from the keyboard and then to have an option of deleting it, from the array. Is this possible? Regards, grscot

[David Crow]

First you would need to delete the block of memory that the array element is pointing to. Then you would need to delete the array element itself by moving all elements after the one to be deleted to the left. Let me see if a picture will help: ----------------- |0|1|2|3|4|5|6|7| ----------------- If you wanted to remove element #4, elements 5, 6, and 7 would be moved to the left one time, like: ----------------- |0|1|2|3|5|6|7| | ----------------- Now you have an empty spot where element #7 used to be. You can either free it up, or leave it so that when another element is added, the memory is already allocated.

[Rickard Andersson20]

You have to iterate through the array and check the value if it is the same as what the user entered and then assign it NULL. Rickard Andersson8 Here is my card, contact me later! UIN: 50302279 E-Mail: nikado@pc.nu Interests: C++, ADO, SQL, Winsock, 0s and 1s

[Cambalindo]

Or you can use the MFC CArray wich is a template, that takes care of everything. #include "Afxtempl.h" CArray arObj; arObj[n].RemoveAt(index);//it will remove the element and shift to the left there are plenty of method to do everything you need. cheers! Daniel Cespedes Daza "Santa Cruz de la Sierra Paraiso Terrenal!" daniel.cespedes@ieee.org

[Cambalindo]

Cambalindo wrote: CArray arObj; This is the correct way of declaring the array CArray<myObj*,myObj&> arObj; Daniel Cespedes Daza "Santa Cruz de la Sierra Paraiso Terrenal!" daniel.cespedes@ieee.org