Node:Nomenclature and Types, Next:Function Classes, Previous:Headers and Libraries, Up:GMP Basics
In this manual, integer usually means a multiple precision integer, as
defined by the GMP library. The C data type for such integers is mpz_t
.
Here are some examples of how to declare such integers:
mpz_t sum; struct foo { mpz_t x, y; }; mpz_t vec[20];
Rational number means a multiple precision fraction. The C data type
for these fractions is mpq_t
. For example:
mpq_t quotient;
Floating point number or Float for short, is an arbitrary precision
mantissa with a limited precision exponent. The C data type for such objects
is mpf_t
.
A limb means the part of a multi-precision number that fits in a single
machine word. (We chose this word because a limb of the human body is
analogous to a digit, only larger, and containing several digits.) Normally a
limb is 32 or 64 bits. The C data type for a limb is mp_limb_t
.