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/init2.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 gmp-6.3.0/mpz/init2.c (limited to 'gmp-6.3.0/mpz/init2.c') diff --git a/gmp-6.3.0/mpz/init2.c b/gmp-6.3.0/mpz/init2.c new file mode 100644 index 0000000..cdb46bf --- /dev/null +++ b/gmp-6.3.0/mpz/init2.c @@ -0,0 +1,50 @@ +/* mpz_init2 -- initialize mpz, with requested size in bits. + +Copyright 2001, 2002, 2008, 2021, 2022 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" + +void +mpz_init2 (mpz_ptr x, mp_bitcnt_t bits) +{ + mp_size_t new_alloc; + + bits -= (bits != 0); /* Round down, except if 0 */ + new_alloc = 1 + bits / GMP_NUMB_BITS; + + if (sizeof (unsigned long) > sizeof (int)) /* param vs _mp_size field */ + { + if (UNLIKELY (new_alloc > INT_MAX)) + MPZ_OVERFLOW; + } + + PTR(x) = __GMP_ALLOCATE_FUNC_LIMBS (new_alloc); + ALLOC(x) = new_alloc; + SIZ(x) = 0; +} -- cgit v1.2.3