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/* mpf_set_d -- Assign a float from a double.
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Copyright 1993-1996, 2001, 2003, 2004 Free Software Foundation, 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 either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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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 General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include "config.h"
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#if HAVE_FLOAT_H
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#include <float.h> /* for DBL_MAX */
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#endif
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#include "gmp.h"
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#include "gmp-impl.h"
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void
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mpf_set_d (mpf_ptr r, double d)
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{
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int negative;
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DOUBLE_NAN_INF_ACTION (d,
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__gmp_invalid_operation (),
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__gmp_invalid_operation ());
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if (UNLIKELY (d == 0))
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{
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SIZ(r) = 0;
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EXP(r) = 0;
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return;
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}
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negative = d < 0;
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d = ABS (d);
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SIZ(r) = negative ? -LIMBS_PER_DOUBLE : LIMBS_PER_DOUBLE;
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EXP(r) = __gmp_extract_double (PTR(r), d);
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}
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