Handle arbitrary base number systems

Flavio Andreazzi flavio3 at email.it
Sun May 22 20:19:57 CEST 2011


Dear GMP community,
I would like to know whether it is possible to handle number systems for
(natural) bases grater than 62 through GMP.

For instance is it possible to represent a bit-string of arbitraty length as
a string of digits in base 103, work with this and finally convert the
string back to binary?

I have read the manual and some old threads, but the only function available
seems to be

char * mpz_get_str (char *str, int base, mpz_t op)
[at http://gmplib.org/manual/Converting-Integers.html]

with base either in the range [2,..,62] or [-2,..,-36]

It would be nice to have a function which allows "conversion" from an
arbitrary base b0 to another b1. Can this be achieved using GMP?

Thanks a lot, Flavio 
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