static MPFR_Object *
GMPy_MPFR_New(mpfr_prec_t bits, CTXT_Object *context)
{
MPFR_Object *result;
if (bits == 0 || bits == 1)
bits = GET_MPFR_PREC(context) + bits * GET_GUARD_BITS(context);
if (bits < MPFR_PREC_MIN || bits > MPFR_PREC_MAX) {
VALUE_ERROR("invalid value for precision");
return NULL;
}
if (in_gmpympfrcache) {
result = gmpympfrcache[--in_gmpympfrcache];
/* Py_INCREF does not set the debugging pointers, so need to use
_Py_NewReference instead. */
_Py_NewReference((PyObject*)result);
mpfr_set_prec(result->f, bits);
}
else {
if (!(result = PyObject_New(MPFR_Object, &MPFR_Type)))
return NULL;
mpfr_init2(result->f, bits);
}
result->hash_cache = -1;
result->rc = 0;
return result;
}
static MPC_Object *
GMPy_MPC_From_Decimal(PyObject *obj, mpfr_prec_t rprec, mpfr_prec_t iprec,
CTXT_Object *context)
{
MPC_Object *result = NULL;
MPFR_Object *tempf;
mpfr_prec_t oldmpfr, oldreal;
int oldmpfr_round, oldreal_round;
assert(IS_DECIMAL(obj));
CHECK_CONTEXT(context);
oldmpfr = GET_MPFR_PREC(context);
oldreal = GET_REAL_PREC(context);
oldmpfr_round = GET_MPFR_ROUND(context);
oldreal_round = GET_REAL_ROUND(context);
context->ctx.mpfr_prec = oldreal;
context->ctx.mpfr_round = oldreal_round;
tempf = GMPy_MPFR_From_Decimal(obj, rprec, context);
context->ctx.mpfr_prec = oldmpfr;
context->ctx.mpfr_round = oldmpfr_round;
result = GMPy_MPC_New(0, 0, context);
if (!tempf || !result) {
Py_XDECREF((PyObject*)tempf);
Py_XDECREF((PyObject*)result);
return NULL;
}
result->rc = MPC_INEX(tempf->rc, 0);
mpfr_swap(mpc_realref(result->c), tempf->f);
Py_DECREF(tempf);
return result;
}