diff options
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpf/pow_ui.c')
-rw-r--r-- | Build/source/libs/gmp/gmp-6.0.0/mpf/pow_ui.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpf/pow_ui.c b/Build/source/libs/gmp/gmp-6.0.0/mpf/pow_ui.c new file mode 100644 index 00000000000..a5af4310590 --- /dev/null +++ b/Build/source/libs/gmp/gmp-6.0.0/mpf/pow_ui.c @@ -0,0 +1,54 @@ +/* mpf_pow_ui -- Compute b^e. + +Copyright 1998, 1999, 2001, 2012 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of either: + + * 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. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +The GNU MP Library 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 General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include "gmp.h" +#include "gmp-impl.h" + +void +mpf_pow_ui (mpf_ptr r, mpf_srcptr b, unsigned long int e) +{ + mpf_t b2; + + mpf_init2 (b2, mpf_get_prec (r)); + mpf_set (b2, b); + + if ((e & 1) != 0) + mpf_set (r, b); + else + mpf_set_ui (r, 1); + while (e >>= 1) + { + mpf_mul (b2, b2, b2); + if ((e & 1) != 0) + mpf_mul (r, r, b2); + } + + mpf_clear (b2); +} |