From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpz/get_d_2exp.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 gmp-6.3.0/mpz/get_d_2exp.c (limited to 'gmp-6.3.0/mpz/get_d_2exp.c') diff --git a/gmp-6.3.0/mpz/get_d_2exp.c b/gmp-6.3.0/mpz/get_d_2exp.c new file mode 100644 index 0000000..beb364a --- /dev/null +++ b/gmp-6.3.0/mpz/get_d_2exp.c @@ -0,0 +1,53 @@ +/* double mpz_get_d_2exp (signed long int *exp, mpz_t src). + +Copyright 2001, 2003, 2004, 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-impl.h" +#include "longlong.h" + +double +mpz_get_d_2exp (signed long int *exp2, mpz_srcptr src) +{ + mp_size_t size, abs_size; + mp_srcptr ptr; + long exp; + + size = SIZ(src); + if (UNLIKELY (size == 0)) + { + *exp2 = 0; + return 0.0; + } + + ptr = PTR(src); + abs_size = ABS(size); + MPN_SIZEINBASE_2EXP(exp, ptr, abs_size, 1); + *exp2 = exp; + return mpn_get_d (ptr, abs_size, size, -exp); +} -- cgit v1.2.3