STL大型int类实现

Question

STL是否有“大型int”类实现？ （将多个数字保存在数组中的数字）

Answer 1

C ++标准库（有时被错误地称为“STL”）不包含任何扩展精度支持。

Answer 2

不，但MPIR / GMP有C ++接口。

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• C++ Big Integer Library (no longer maintained)