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38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* mpc_pow_fr -- Raise a complex number to a floating-point power.
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Copyright (C) 2009, 2011 INRIA
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This file is part of GNU MPC.
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GNU MPC is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see http://www.gnu.org/licenses/ .
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*/
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#include "mpc-impl.h"
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int
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mpc_pow_fr (mpc_ptr z, mpc_srcptr x, mpfr_srcptr y, mpc_rnd_t rnd)
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{
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mpc_t yy;
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int inex;
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/* avoid copying the significand of y by copying only the struct */
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mpc_realref(yy)[0] = y[0];
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mpfr_init2 (mpc_imagref(yy), MPFR_PREC_MIN);
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mpfr_set_ui (mpc_imagref(yy), 0, GMP_RNDN);
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inex = mpc_pow (z, x, yy, rnd);
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mpfr_clear (mpc_imagref(yy));
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return inex;
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}
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