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Diffstat (limited to 'contrib/libgmp/mpf/set_z.c')
-rw-r--r-- | contrib/libgmp/mpf/set_z.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/contrib/libgmp/mpf/set_z.c b/contrib/libgmp/mpf/set_z.c new file mode 100644 index 000000000000..4fff86edc3bc --- /dev/null +++ b/contrib/libgmp/mpf/set_z.c @@ -0,0 +1,54 @@ +/* mpf_set_z -- Assign a float from an integer. + +Copyright (C) 1996 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 the GNU Library General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at your +option) any later version. + +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 Library General Public +License for more details. + +You should have received a copy of the GNU Library General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" + +void +#if __STDC__ +mpf_set_z (mpf_ptr r, mpz_srcptr u) +#else +mpf_set_z (r, u) + mpf_ptr r; + mpz_srcptr u; +#endif +{ + mp_ptr rp, up; + mp_size_t size, asize; + mp_size_t prec; + + prec = PREC (r) + 1; + size = SIZ (u); + asize = ABS (size); + rp = PTR (r); + up = PTR (u); + + EXP (r) = asize; + + if (asize > prec) + { + up += asize - prec; + asize = prec; + } + + MPN_COPY (rp, up, asize); + SIZ (r) = size >= 0 ? asize : -asize; +} |