Test mpc creation
=================

>>> import gmpy2
>>> from gmpy2 import mpz, mpq, mpfr, mpc
>>> ctx=gmpy2.get_context()
>>> ctx.clear_flags()
>>> a=mpc("1.2")
>>> a.rc
(-1, 0)
>>> ctx
context(precision=53, real_prec=Default, imag_prec=Default,
        round=RoundToNearest, real_round=Default, imag_round=Default,
        emax=1073741823, emin=-1073741823,
        subnormalize=False,
        trap_underflow=False, underflow=False,
        trap_overflow=False, overflow=False,
        trap_inexact=False, inexact=True,
        trap_invalid=False, invalid=False,
        trap_erange=False, erange=False,
        trap_divzero=False, divzero=False,
        allow_complex=False,
        rational_division=False,
        allow_release_gil=False)