/* mpfr_sqrt_ui -- square root of a machine integer
Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the MPFR Library.
The MPFR Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
The MPFR 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the MPFR 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. */
mpfr_sqrt_ui (mpfr_ptr r, unsigned long u, mp_rnd_t rnd_mode)
unsigned long cnt;
MPFR_INIT1(up, uu, BITS_PER_MP_LIMB, 1);
count_leading_zeros (cnt, (mp_limb_t) u);
*up = (mp_limb_t) u << cnt;
MPFR_EXP(uu) = BITS_PER_MP_LIMB - cnt;
inex = mpfr_sqrt(r, uu, rnd_mode);
MPFR_RESTORE_RET(inex, r, rnd_mode);
else /* sqrt(0) = 0 */