1 /* mpc_pow_fr -- Raise a complex number to a floating-point power. 2 3 Copyright (C) 2009, 2011 INRIA 4 5 This file is part of GNU MPC. 6 7 GNU MPC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU Lesser General Public License as published by the 9 Free Software Foundation; either version 3 of the License, or (at your 10 option) any later version. 11 12 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for 15 more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with this program. If not, see http://www.gnu.org/licenses/ . 19 */ 20 21 #include "mpc-impl.h" 22 23 int 24 mpc_pow_fr (mpc_ptr z, mpc_srcptr x, mpfr_srcptr y, mpc_rnd_t rnd) 25 { 26 mpc_t yy; 27 int inex; 28 29 /* avoid copying the significand of y by copying only the struct */ 30 mpc_realref(yy)[0] = y[0]; 31 mpfr_init2 (mpc_imagref(yy), MPFR_PREC_MIN); 32 mpfr_set_ui (mpc_imagref(yy), 0, GMP_RNDN); 33 inex = mpc_pow (z, x, yy, rnd); 34 mpfr_clear (mpc_imagref(yy)); 35 return inex; 36 } 37 38