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/* mpc-impl.h -- Internal include file for mpc.
Copyright (C) 2002, 2004, 2005 Andreas Enge, Paul Zimmermann
This file is part of the MPC Library.
The MPC 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 MPC 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 MPC 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. */
#ifndef __MPC_IMPL_H
#define __MPC_IMPL_H
#define MPFR_PREC(x) mpfr_get_prec(x)
#define MPFR_EXP(x) mpfr_get_exp(x)
#define MPFR_CHANGE_SIGN(x) mpfr_neg(x,x,GMP_RNDN)
#define MPFR_IS_ZERO(x) (mpfr_cmp_ui(x,0) == 0)
#define MAX(h,i) ((h) > (i) ? (h) : (i))
#ifndef MUL_KARATSUBA_THRESHOLD
#define MUL_KARATSUBA_THRESHOLD 23
#endif
#ifndef BITS_PER_MP_LIMB
#define BITS_PER_MP_LIMB mp_bits_per_limb
#endif
#define MPC_MAX_PREC(x) MAX(MPFR_PREC(MPC_RE(x)), MPFR_PREC(MPC_IM(x)))
#define INV_RND(r) \
(((r) == GMP_RNDU) ? GMP_RNDD : (((r) == GMP_RNDD) ? GMP_RNDU : (r)))
#define SWAP(a,b) { mpfr_srcptr tmp; tmp = a; a = b; b = tmp; }
/* Safe absolute value (to avoid possible integer overflow) */
/* type is the target (unsigned) type (copied from mpfr-impl.h */
#define SAFE_ABS(type,x) ((x) >= 0 ? (type)(x) : -(type)(x))
/* Define internal functions */
#if defined (__cplusplus)
extern "C" {
#endif
int mpc_mul_naive __MPC_PROTO ((mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
int mpc_mul_karatsuba __MPC_PROTO ((mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
unsigned long mpc_ceil_log2 __MPC_PROTO ((unsigned long));
int mpc_abs_basic __MPC_PROTO ((mpfr_ptr, mpc_srcptr, mpc_rnd_t));
#if defined (__cplusplus)
}
#endif
#endif
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