/* cairo - a vector graphics library with display and print output

 *

 * Copyright © 2004 Keith Packard

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * The original code as contributed to the cairo library under

 * the dual license MPL+LGPL. We used the LGPL relicensing clause to

 * get a GPL version of this code which now lives here. This header is

 * unmodified other than the licensing clause.

 *

 * The Original Code is the cairo graphics library.

 *

 * The Initial Developer of the Original Code is Keith Packard

 *

 * Contributor(s):

 *	Keith R. Packard <keithp@keithp.com>

 *

 */

#ifndef CAIRO_WIDEINT_H

#define CAIRO_WIDEINT_H

#include "ns3/simulator-config.h"

#define cairo_private 

#define HAVE_UINT64_T 1

#if   HAVE_STDINT_H

# include <stdint.h>

#elif HAVE_INTTYPES_H

# include <inttypes.h>

#elif HAVE_SYS_INT_TYPES_H

# include <sys/int_types.h>

#elif defined(_MSC_VER)

  typedef __int8 int8_t;

  typedef unsigned __int8 uint8_t;

  typedef __int16 int16_t;

  typedef unsigned __int16 uint16_t;

  typedef __int32 int32_t;

  typedef unsigned __int32 uint32_t;

  typedef __int64 int64_t;

  typedef unsigned __int64 uint64_t;

# ifndef HAVE_UINT64_T

#  define HAVE_UINT64_T 1

# endif

# ifndef INT16_MIN

#  define INT16_MIN	(-32767-1)

# endif

# ifndef INT16_MAX

#  define INT16_MAX	(32767)

# endif

# ifndef UINT16_MAX

#  define UINT16_MAX	(65535)

# endif

#else

#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.)

#endif

#ifdef __cplusplus

extern "C" {

#endif

/*

 * 64-bit datatypes.  Two separate implementations, one using

 * built-in 64-bit signed/unsigned types another implemented

 * as a pair of 32-bit ints

 */

#define I cairo_private

#if !HAVE_UINT64_T

typedef struct _cairo_uint64 {

    uint32_t	lo, hi;

} cairo_uint64_t, cairo_int64_t;

cairo_uint64_t I	_cairo_uint32_to_uint64 (uint32_t i);

#define			_cairo_uint64_to_uint32(a)  ((a).lo)

cairo_uint64_t I	_cairo_uint64_add (cairo_uint64_t a, cairo_uint64_t b);

cairo_uint64_t I	_cairo_uint64_sub (cairo_uint64_t a, cairo_uint64_t b);

cairo_uint64_t I	_cairo_uint64_mul (cairo_uint64_t a, cairo_uint64_t b);

cairo_uint64_t I	_cairo_uint32x32_64_mul (uint32_t a, uint32_t b);

cairo_uint64_t I	_cairo_uint64_lsl (cairo_uint64_t a, int shift);

cairo_uint64_t I	_cairo_uint64_rsl (cairo_uint64_t a, int shift);

cairo_uint64_t I	_cairo_uint64_rsa (cairo_uint64_t a, int shift);

int	       I	_cairo_uint64_lt (cairo_uint64_t a, cairo_uint64_t b);

int	       I	_cairo_uint64_eq (cairo_uint64_t a, cairo_uint64_t b);

cairo_uint64_t I	_cairo_uint64_negate (cairo_uint64_t a);

#define			_cairo_uint64_negative(a)   (((int32_t) ((a).hi)) < 0)

cairo_uint64_t I	_cairo_uint64_not (cairo_uint64_t a);

#define			_cairo_uint64_to_int64(i)   (i)

#define			_cairo_int64_to_uint64(i)   (i)

cairo_int64_t  I	_cairo_int32_to_int64(int32_t i);

#define			_cairo_int64_to_int32(a)    ((int32_t) _cairo_uint64_to_uint32(a))

#define			_cairo_int64_add(a,b)	    _cairo_uint64_add (a,b)

#define			_cairo_int64_sub(a,b)	    _cairo_uint64_sub (a,b)

#define			_cairo_int64_mul(a,b)	    _cairo_uint64_mul (a,b)

cairo_int64_t  I	_cairo_int32x32_64_mul (int32_t a, int32_t b);

int	       I	_cairo_int64_lt (cairo_uint64_t a, cairo_uint64_t b);

#define			_cairo_int64_eq(a,b)	    _cairo_uint64_eq (a,b)

#define			_cairo_int64_lsl(a,b)	    _cairo_uint64_lsl (a,b)

#define			_cairo_int64_rsl(a,b)	    _cairo_uint64_rsl (a,b)

#define			_cairo_int64_rsa(a,b)	    _cairo_uint64_rsa (a,b)

#define			_cairo_int64_negate(a)	    _cairo_uint64_negate(a)

#define			_cairo_int64_negative(a)    (((int32_t) ((a).hi)) < 0)

#define			_cairo_int64_not(a)	    _cairo_uint64_not(a)

#else

typedef uint64_t    cairo_uint64_t;

typedef int64_t	    cairo_int64_t;

#define			_cairo_uint32_to_uint64(i)  ((uint64_t) (i))

#define			_cairo_uint64_to_uint32(i)  ((uint32_t) (i))

#define			_cairo_uint64_add(a,b)	    ((a) + (b))

#define			_cairo_uint64_sub(a,b)	    ((a) - (b))

#define			_cairo_uint64_mul(a,b)	    ((a) * (b))

#define			_cairo_uint32x32_64_mul(a,b)	((uint64_t) (a) * (b))

#define			_cairo_uint64_lsl(a,b)	    ((a) << (b))

#define			_cairo_uint64_rsl(a,b)	    ((uint64_t) (a) >> (b))

#define			_cairo_uint64_rsa(a,b)	    ((uint64_t) ((int64_t) (a) >> (b)))

#define			_cairo_uint64_lt(a,b)	    ((a) < (b))

#define			_cairo_uint64_eq(a,b)	    ((a) == (b))

#define			_cairo_uint64_negate(a)	    ((uint64_t) -((int64_t) (a)))

#define			_cairo_uint64_negative(a)   ((int64_t) (a) < 0)

#define			_cairo_uint64_not(a)	    (~(a))

#define			_cairo_uint64_to_int64(i)   ((int64_t) (i))

#define			_cairo_int64_to_uint64(i)   ((uint64_t) (i))

#define			_cairo_int32_to_int64(i)    ((int64_t) (i))

#define			_cairo_int64_to_int32(i)    ((int32_t) (i))

#define			_cairo_int64_add(a,b)	    ((a) + (b))

#define			_cairo_int64_sub(a,b)	    ((a) - (b))

#define			_cairo_int64_mul(a,b)	    ((a) * (b))

#define			_cairo_int32x32_64_mul(a,b) ((int64_t) (a) * (b))

#define			_cairo_int64_lt(a,b)	    ((a) < (b))

#define			_cairo_int64_eq(a,b)	    ((a) == (b))

#define			_cairo_int64_lsl(a,b)	    ((a) << (b))

#define			_cairo_int64_rsl(a,b)	    ((int64_t) ((uint64_t) (a) >> (b)))

#define			_cairo_int64_rsa(a,b)	    ((int64_t) (a) >> (b))

#define			_cairo_int64_negate(a)	    (-(a))

#define			_cairo_int64_negative(a)    ((a) < 0)

#define			_cairo_int64_not(a)	    (~(a))

#endif

/*

 * 64-bit comparisions derived from lt or eq

 */

#define			_cairo_uint64_le(a,b)	    (!_cairo_uint64_gt(a,b))

#define			_cairo_uint64_ne(a,b)	    (!_cairo_uint64_eq(a,b))

#define			_cairo_uint64_ge(a,b)	    (!_cairo_uint64_lt(a,b))

#define			_cairo_uint64_gt(a,b)	    _cairo_uint64_lt(b,a)

#define			_cairo_int64_le(a,b)	    (!_cairo_int64_gt(a,b))

#define			_cairo_int64_ne(a,b)	    (!_cairo_int64_eq(a,b))

#define			_cairo_int64_ge(a,b)	    (!_cairo_int64_lt(a,b))

#define			_cairo_int64_gt(a,b)	    _cairo_int64_lt(b,a)

/*

 * As the C implementation always computes both, create

 * a function which returns both for the 'native' type as well

 */

typedef struct _cairo_uquorem64 {

    cairo_uint64_t	quo;

    cairo_uint64_t	rem;

} cairo_uquorem64_t;

typedef struct _cairo_quorem64 {

    cairo_int64_t	quo;

    cairo_int64_t	rem;

} cairo_quorem64_t;

cairo_uquorem64_t I

_cairo_uint64_divrem (cairo_uint64_t num, cairo_uint64_t den);

cairo_quorem64_t I

_cairo_int64_divrem (cairo_int64_t num, cairo_int64_t den);

/*

 * 128-bit datatypes.  Again, provide two implementations in

 * case the machine has a native 128-bit datatype.  GCC supports int128_t

 * on ia64

 */

#if !HAVE_UINT128_T

typedef struct cairo_uint128 {

    cairo_uint64_t	lo, hi;

} cairo_uint128_t, cairo_int128_t;

cairo_uint128_t I	_cairo_uint32_to_uint128 (uint32_t i);

cairo_uint128_t I	_cairo_uint64_to_uint128 (cairo_uint64_t i);

#define			_cairo_uint128_to_uint64(a)	((a).lo)

#define			_cairo_uint128_to_uint32(a)	_cairo_uint64_to_uint32(_cairo_uint128_to_uint64(a))

cairo_uint128_t I	_cairo_uint128_add (cairo_uint128_t a, cairo_uint128_t b);

cairo_uint128_t I	_cairo_uint128_sub (cairo_uint128_t a, cairo_uint128_t b);

cairo_uint128_t I	_cairo_uint128_mul (cairo_uint128_t a, cairo_uint128_t b);

cairo_uint128_t I	_cairo_uint64x64_128_mul (cairo_uint64_t a, cairo_uint64_t b);

cairo_uint128_t I	_cairo_uint128_lsl (cairo_uint128_t a, int shift);

cairo_uint128_t I	_cairo_uint128_rsl (cairo_uint128_t a, int shift);

cairo_uint128_t I	_cairo_uint128_rsa (cairo_uint128_t a, int shift);

int	        I	_cairo_uint128_lt (cairo_uint128_t a, cairo_uint128_t b);

int	        I	_cairo_uint128_eq (cairo_uint128_t a, cairo_uint128_t b);

cairo_uint128_t I	_cairo_uint128_negate (cairo_uint128_t a);

#define			_cairo_uint128_negative(a)  (_cairo_uint64_negative(a.hi))

cairo_uint128_t I	_cairo_uint128_not (cairo_uint128_t a);

#define			_cairo_uint128_to_int128(i)	(i)

#define			_cairo_int128_to_uint128(i)	(i)

cairo_int128_t  I	_cairo_int32_to_int128 (int32_t i);

cairo_int128_t  I	_cairo_int64_to_int128 (cairo_int64_t i);

#define			_cairo_int128_to_int64(a)   ((cairo_int64_t) (a).lo)

#define			_cairo_int128_to_int32(a)   _cairo_int64_to_int32(_cairo_int128_to_int64(a))

#define			_cairo_int128_add(a,b)	    _cairo_uint128_add(a,b)

#define			_cairo_int128_sub(a,b)	    _cairo_uint128_sub(a,b)

#define			_cairo_int128_mul(a,b)	    _cairo_uint128_mul(a,b)

cairo_int128_t I _cairo_int64x64_128_mul (cairo_int64_t a, cairo_int64_t b);

#define			_cairo_int128_lsl(a,b)	    _cairo_uint128_lsl(a,b)

#define			_cairo_int128_rsl(a,b)	    _cairo_uint128_rsl(a,b)

#define			_cairo_int128_rsa(a,b)	    _cairo_uint128_rsa(a,b)

int 	        I	_cairo_int128_lt (cairo_int128_t a, cairo_int128_t b);

#define			_cairo_int128_eq(a,b)	    _cairo_uint128_eq (a,b)

#define			_cairo_int128_negate(a)	    _cairo_uint128_negate(a)

#define			_cairo_int128_negative(a)   (_cairo_uint128_negative(a))

#define			_cairo_int128_not(a)	    _cairo_uint128_not(a)

#else	/* !HAVE_UINT128_T */

typedef uint128_t	cairo_uint128_t;

typedef int128_t	cairo_int128_t;

#define			_cairo_uint32_to_uint128(i) ((uint128_t) (i))

#define			_cairo_uint64_to_uint128(i) ((uint128_t) (i))

#define			_cairo_uint128_to_uint64(i) ((uint64_t) (i))

#define			_cairo_uint128_to_uint32(i) ((uint32_t) (i))

#define			_cairo_uint128_add(a,b)	    ((a) + (b))

#define			_cairo_uint128_sub(a,b)	    ((a) - (b))

#define			_cairo_uint128_mul(a,b)	    ((a) * (b))

#define			_cairo_uint64x64_128_mul(a,b)	((uint128_t) (a) * (b))

#define			_cairo_uint128_lsl(a,b)	    ((a) << (b))

#define			_cairo_uint128_rsl(a,b)	    ((uint128_t) (a) >> (b))

#define			_cairo_uint128_rsa(a,b)	    ((uint128_t) ((int128_t) (a) >> (b)))

#define			_cairo_uint128_lt(a,b)	    ((a) < (b))

#define			_cairo_uint128_eq(a,b)	    ((a) == (b))

#define			_cairo_uint128_negate(a)    ((uint128_t) -((int128_t) (a)))

#define			_cairo_uint128_negative(a)  ((int128_t) (a) < 0)

#define			_cairo_uint128_not(a)	    (~(a))

#define			_cairo_uint128_to_int128(i) ((int128_t) (i))

#define			_cairo_int128_to_uint128(i) ((uint128_t) (i))

#define			_cairo_int32_to_int128(i)   ((int128_t) (i))

#define			_cairo_int64_to_int128(i)   ((int128_t) (i))

#define			_cairo_int128_to_int64(i)   ((int64_t) (i))

#define			_cairo_int128_to_int32(i)   ((int32_t) (i))

#define			_cairo_int128_add(a,b)	    ((a) + (b))

#define			_cairo_int128_sub(a,b)	    ((a) - (b))

#define			_cairo_int128_mul(a,b)	    ((a) * (b))

#define			_cairo_int64x64_128_mul(a,b) ((int128_t) (a) * (b))

#define			_cairo_int128_lt(a,b)	    ((a) < (b))

#define			_cairo_int128_eq(a,b)	    ((a) == (b))

#define			_cairo_int128_lsl(a,b)	    ((a) << (b))

#define			_cairo_int128_rsl(a,b)	    ((int128_t) ((uint128_t) (a) >> (b)))

#define			_cairo_int128_rsa(a,b)	    ((int128_t) (a) >> (b))

#define			_cairo_int128_negate(a)	    (-(a))

#define			_cairo_int128_negative(a)   ((a) < 0)

#define			_cairo_int128_not(a)	    (~(a))

#endif	/* HAVE_UINT128_T */

typedef struct _cairo_uquorem128 {

    cairo_uint128_t	quo;

    cairo_uint128_t	rem;

} cairo_uquorem128_t;

typedef struct _cairo_quorem128 {

    cairo_int128_t	quo;

    cairo_int128_t	rem;

} cairo_quorem128_t;

cairo_uquorem128_t I

_cairo_uint128_divrem (cairo_uint128_t num, cairo_uint128_t den);

cairo_quorem128_t I

_cairo_int128_divrem (cairo_int128_t num, cairo_int128_t den);

cairo_uquorem64_t I

_cairo_uint_96by64_32x64_divrem (cairo_uint128_t num,

				 cairo_uint64_t  den);

cairo_quorem64_t I

_cairo_int_96by64_32x64_divrem (cairo_int128_t num,

				cairo_int64_t  den);

#define			_cairo_uint128_le(a,b)	    (!_cairo_uint128_gt(a,b))

#define			_cairo_uint128_ne(a,b)	    (!_cairo_uint128_eq(a,b))

#define			_cairo_uint128_ge(a,b)	    (!_cairo_uint128_lt(a,b))

#define			_cairo_uint128_gt(a,b)	    _cairo_uint128_lt(b,a)

#define			_cairo_int128_le(a,b)	    (!_cairo_int128_gt(a,b))

#define			_cairo_int128_ne(a,b)	    (!_cairo_int128_eq(a,b))

#define			_cairo_int128_ge(a,b)	    (!_cairo_int128_lt(a,b))

#define			_cairo_int128_gt(a,b)	    _cairo_int128_lt(b,a)

#undef I

#ifdef __cplusplus

};

#endif

#endif /* CAIRO_WIDEINT_H */