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 licens

Answer 1

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