Soldato
I've started to use project euler as a source of short and interesting programming projects. While the simpler tasks are easily doable with the standard variable types some of the more complex problems will need longer integers (and probably longer decimals) than C++ can provide. I could create my own library to deal with arbitrarily long numbers but there are plenty that have been developed already. If anyone could give me recommendations as to which is the best of those available, that would be great.