i frequently encounter the problem that i cannot store all the data (usually lists of structs) i need for my calculation in main memory and have to swap it to a file on my harddisk. since the process of reading and writing data is always the same, one could write a piece of code that can do that for every possible type. One idea is to overload the []-operator for random access, __________________________________________ [url=http://www.pass-4sure.us]pass-4sure.us[/url]