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49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* mpz_init_set (src_integer) -- Make a new multiple precision number with
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a value copied from SRC_INTEGER.
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Copyright 1991, 1993, 1994, 1996, 2000, 2001, 2002 Free Software Foundation,
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Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
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#include "gmp.h"
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#include "gmp-impl.h"
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void
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mpz_init_set (mpz_ptr w, mpz_srcptr u)
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{
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mp_ptr wp, up;
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mp_size_t usize, size;
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usize = u->_mp_size;
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size = ABS (usize);
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w->_mp_alloc = MAX (size, 1);
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w->_mp_d = (mp_ptr) (*__gmp_allocate_func) (w->_mp_alloc * BYTES_PER_MP_LIMB);
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wp = w->_mp_d;
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up = u->_mp_d;
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MPN_COPY (wp, up, size);
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w->_mp_size = usize;
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#ifdef __CHECKER__
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/* let the low limb look initialized, for the benefit of mpz_get_ui etc */
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if (size == 0)
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wp[0] = 0;
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#endif
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}
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