C or C++ BigInt library on Microsoft Windows

Question

What arbitrary-precision integers (and or rationals) library are there for compilers running on Microsoft Windows, and which would you recommend?

Please state license type / cost, supported compilers (i.e. GCC and or VC++) for the library.

Answer 1

GMP.

LGPL. Standard download from official website is designed for GCC. VC++ port is available from here.

Answer 2

I have not used it, so I'm pointing you here blind:

LibTomMath by Tom St Denis: http://libtom.org/

Public Domain license. Website mentions that the library builds out of the box with GCC 2.95 [and up] as well as Visual C++ v6.00 [with SP5] without configuration.

A companion book is available: http://www.amazon.com/dp/1597491128

Answer 3

OpenSSL BN type. BSD-style license, pretty sure it's available for windows.

Answer 4

Best bignum library to solve Project Euler problems in C++ ?