Is there a BigInt large number class in the standard library?

Question

Does the standard library have a BigInt class? (numbers with many digits held in a container)

Answer 1

The C++ standard library (sometimes erroneously referred to as "STL") does not contain any extended precision support.

Answer 2

No, but MPIR/GMP have C++ interfaces.

Answer 3

Unfortunately, the C++ standard library does not natively support arbitrarily long integers. However, these libraries can help you getting the job done:

• The GNU Multiple Precision Arithmetic Library (has both C and C++ interfaces, also refered as GMP)
• InfInt
• C++ BigInt class
• Boost.Multiprecision
• Multiple Precision Integers and Rationals (written in assembly, has a C interface)
• BigDigits multiple-precision arithmetic (in C)
• BigIntegerCPP (only supports addition and multiplication)
• C++ Big Integer Library (no longer maintained)