1/* mpc_pow_ld -- Raise a complex number to a long double power.
2
3Copyright (C) 2009 INRIA
4
5This file is part of GNU MPC.
6
7GNU MPC is free software; you can redistribute it and/or modify it under
8the terms of the GNU Lesser General Public License as published by the
9Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
15more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with this program. If not, see http://www.gnu.org/licenses/ .
19*/
20
21#include <stdio.h>    /* for MPC_ASSERT */
22#include <float.h>    /* for LDBL_MANT_DIG */
23#include "mpc-impl.h"
24
25int
26mpc_pow_ld (mpc_ptr z, mpc_srcptr x, long double y, mpc_rnd_t rnd)
27{
28  mpc_t yy;
29  int inex;
30
31  MPC_ASSERT(FLT_RADIX == 2);
32  mpc_init3 (yy, LDBL_MANT_DIG, MPFR_PREC_MIN);
33  mpc_set_ld (yy, y, MPC_RNDNN);   /* exact */
34  inex = mpc_pow (z, x, yy, rnd);
35  mpc_clear (yy);
36  return inex;
37}
38
39