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Diffstat (limited to 'mpc/src/pow_ld.c')
-rw-r--r-- | mpc/src/pow_ld.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/mpc/src/pow_ld.c b/mpc/src/pow_ld.c new file mode 100644 index 0000000000..9d98a98478 --- /dev/null +++ b/mpc/src/pow_ld.c @@ -0,0 +1,38 @@ +/* mpc_pow_ld -- Raise a complex number to a long double power. + +Copyright (C) 2009 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 <stdio.h> /* for MPC_ASSERT */ +#include <float.h> /* for LDBL_MANT_DIG */ +#include "mpc-impl.h" + +int +mpc_pow_ld (mpc_ptr z, mpc_srcptr x, long double y, mpc_rnd_t rnd) +{ + mpc_t yy; + int inex; + + MPC_ASSERT(FLT_RADIX == 2); + mpc_init3 (yy, LDBL_MANT_DIG, MPFR_PREC_MIN); + mpc_set_ld (yy, y, MPC_RNDNN); /* exact */ + inex = mpc_pow (z, x, yy, rnd); + mpc_clear (yy); + return inex; +} + |