A good and basic implementation of BigInt class in C++
bigint, biginteger, c++
Solution
Here's one. I haven't used it, but it doesn't look too complex, and it was the first result when I googled "bigint c++".
Problem
I'm looking for a good and basic BigInt class in C++, I find a lot of implementation but most of the time, it's complex implementation for crypto library... By basic, I mean BigInt can deal with BigInt, long long and strings with operator overloading. If I had time, I had done myself but I do not have time to create an entire BigInt class.