Miscellaneous Functions
=======================

    >>> import gmpy2 as G
    >>> G.version()
    '2.0.0b1'
    >>> G.mp_limbsize() in (32,64)
    True
    >>> G.mp_version().split()[0] in ['GMP', 'MPIR']
    True
    >>> check_gmp = G.mp_version().startswith('GMP') and '5.0.0' <= G.mp_version().split()[1]
    >>> check_mpir = G.mp_version().startswith('MPIR') and '2.4.0' <= G.mp_version().split()[1]
    >>> check_gmp or check_mpir
    True
    >>> G.mpfr_version() and G.mpfr_version().startswith('MPFR')
    True
    >>> G.mpfr_version() and '3.1.0' <= G.mpfr_version().split()[1]
    True
    >>> G.mpc_version() and G.mpc_version().startswith('MPC')
    True
    >>> G.mpc_version() and '0.9' <= G.mpc_version().split()[1]
    True
