-/* mpz_sizeinbase(x, base) -- return an approximation to the number of
- character the integer X would have printed in base BASE. The
- approximation is never too small.
-
-Copyright (C) 1991, 1993, 1994, 1995 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 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 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 Lesser General Public
-License for more details.
-
-You should have received a copy of the GNU Lesser 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"
-#include "longlong.h"
-
-size_t
-#if __STDC__
-mpz_sizeinbase (mpz_srcptr x, int base)
-#else
-mpz_sizeinbase (x, base)
- mpz_srcptr x;
- int base;
-#endif
-{
- mp_size_t size = ABS (x->_mp_size);
- int lb_base, cnt;
- size_t totbits;
-
- /* Special case for X == 0. */
- if (size == 0)
- return 1;
-
- /* Calculate the total number of significant bits of X. */
- count_leading_zeros (cnt, x->_mp_d[size - 1]);
- totbits = size * BITS_PER_MP_LIMB - cnt;
-
- if ((base & (base - 1)) == 0)
- {
- /* Special case for powers of 2, giving exact result. */
-
- count_leading_zeros (lb_base, base);
- lb_base = BITS_PER_MP_LIMB - lb_base - 1;
-
- return (totbits + lb_base - 1) / lb_base;
- }
- else
- return (size_t) (totbits * __mp_bases[base].chars_per_bit_exactly) + 1;
-}