vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/* mpf_fits_u*_p -- test whether an mpf fits a C unsigned type.
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Copyright 2001, 2002, 2013, 2014 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 "gmp-impl.h"
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/* Notice this is equivalent to mpz_set_f + mpz_fits_u*_p. */
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int
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FUNCTION (mpf_srcptr f) __GMP_NOTHROW
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{
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mp_size_t fn;
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mp_srcptr fp;
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mp_exp_t exp;
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mp_limb_t fl;
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exp = EXP(f);
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if (exp < 1)
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return 1; /* -1 < f < 1 truncates to zero, so fits */
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fn = SIZ(f);
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if (fn < 0) /* zero catched by exp == 0 */
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return 0; /* negatives don't fit */
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fp = PTR(f);
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if (exp == 1)
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{
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fl = fp[fn-1];
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}
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#if GMP_NAIL_BITS != 0
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else if (exp == 2 && MAXIMUM > GMP_NUMB_MAX)
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{
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fl = fp[fn-1];
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if ((fl >> GMP_NAIL_BITS) != 0)
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return 0;
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fl = (fl << GMP_NUMB_BITS);
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if (fn >= 2)
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fl |= fp[fn-2];
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}
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#endif
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else
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return 0;
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return fl <= MAXIMUM;
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}
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