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Diffstat (limited to 'mpc/src/mul_2ui.c')
-rw-r--r-- | mpc/src/mul_2ui.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mpc/src/mul_2ui.c b/mpc/src/mul_2ui.c new file mode 100644 index 0000000000..46aa788ec9 --- /dev/null +++ b/mpc/src/mul_2ui.c @@ -0,0 +1,32 @@ +/* mpc_mul_2ui -- Multiply a complex number by 2^e. + +Copyright (C) 2002, 2009, 2011, 2012 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_mul_2ui (mpc_ptr a, mpc_srcptr b, unsigned long int c, mpc_rnd_t rnd) +{ + int inex_re, inex_im; + + inex_re = mpfr_mul_2ui (mpc_realref(a), mpc_realref(b), c, MPC_RND_RE(rnd)); + inex_im = mpfr_mul_2ui (mpc_imagref(a), mpc_imagref(b), c, MPC_RND_IM(rnd)); + + return MPC_INEX(inex_re, inex_im); +} |