diff options
Diffstat (limited to 'mpc/src/pow_fr.c')
-rw-r--r-- | mpc/src/pow_fr.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/mpc/src/pow_fr.c b/mpc/src/pow_fr.c new file mode 100644 index 0000000000..8c5d930421 --- /dev/null +++ b/mpc/src/pow_fr.c @@ -0,0 +1,37 @@ +/* mpc_pow_fr -- Raise a complex number to a floating-point power. + +Copyright (C) 2009, 2011 INRIA + +This file is part of GNU MPC. + +GNU MPC is free software; you can redistribute it and/or modify it under +the terms of the GNU Lesser General Public License as published by the +Free Software Foundation; either version 3 of the License, or (at your +option) any later version. + +GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for +more details. + +You should have received a copy of the GNU Lesser General Public License +along with this program. If not, see http://www.gnu.org/licenses/ . +*/ + +#include "mpc-impl.h" + +int +mpc_pow_fr (mpc_ptr z, mpc_srcptr x, mpfr_srcptr y, mpc_rnd_t rnd) +{ + mpc_t yy; + int inex; + + /* avoid copying the significand of y by copying only the struct */ + mpc_realref(yy)[0] = y[0]; + mpfr_init2 (mpc_imagref(yy), MPFR_PREC_MIN); + mpfr_set_ui (mpc_imagref(yy), 0, GMP_RNDN); + inex = mpc_pow (z, x, yy, rnd); + mpfr_clear (mpc_imagref(yy)); + return inex; +} + |