ossp-pkg/tai/tai_ui64.h
1.4
/*
** OSSP ui64 - 64-Bit Arithmetic
** Copyright (c) 2002-2005 Ralf S. Engelschall <rse@engelschall.com>
** Copyright (c) 2002-2005 The OSSP Project <http://www.ossp.org/>
**
** This file is part of OSSP ui64, a 64-bit arithmetic library
** which can be found at http://www.ossp.org/pkg/lib/ui64/.
**
** Permission to use, copy, modify, and distribute this software for
** any purpose with or without fee is hereby granted, provided that
** the above copyright notice and this permission notice appear in all
** copies.
**
** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE.
**
** ui64.h: API declaration
*/
#ifndef __UI64_H__
#define __UI64_H__
#include <string.h>
#define UI64_PREFIX tai_
/* embedding support */
#ifdef UI64_PREFIX
#if defined(__STDC__) || defined(__cplusplus)
#define __UI64_CONCAT(x,y) x ## y
#define UI64_CONCAT(x,y) __UI64_CONCAT(x,y)
#else
#define __UI64_CONCAT(x) x
#define UI64_CONCAT(x,y) __UI64_CONCAT(x)y
#endif
#define ui64_t UI64_CONCAT(UI64_PREFIX,ui64_t)
#define ui64_zero UI64_CONCAT(UI64_PREFIX,ui64_zero)
#define ui64_max UI64_CONCAT(UI64_PREFIX,ui64_max)
#define ui64_n2i UI64_CONCAT(UI64_PREFIX,ui64_n2i)
#define ui64_i2n UI64_CONCAT(UI64_PREFIX,ui64_i2n)
#define ui64_s2i UI64_CONCAT(UI64_PREFIX,ui64_s2i)
#define ui64_i2s UI64_CONCAT(UI64_PREFIX,ui64_i2s)
#define ui64_add UI64_CONCAT(UI64_PREFIX,ui64_add)
#define ui64_addn UI64_CONCAT(UI64_PREFIX,ui64_addn)
#define ui64_sub UI64_CONCAT(UI64_PREFIX,ui64_sub)
#define ui64_subn UI64_CONCAT(UI64_PREFIX,ui64_subn)
#define ui64_mul UI64_CONCAT(UI64_PREFIX,ui64_mul)
#define ui64_muln UI64_CONCAT(UI64_PREFIX,ui64_muln)
#define ui64_div UI64_CONCAT(UI64_PREFIX,ui64_div)
#define ui64_divn UI64_CONCAT(UI64_PREFIX,ui64_divn)
#define ui64_and UI64_CONCAT(UI64_PREFIX,ui64_and)
#define ui64_or UI64_CONCAT(UI64_PREFIX,ui64_or)
#define ui64_xor UI64_CONCAT(UI64_PREFIX,ui64_xor)
#define ui64_not UI64_CONCAT(UI64_PREFIX,ui64_not)
#define ui64_rol UI64_CONCAT(UI64_PREFIX,ui64_rol)
#define ui64_ror UI64_CONCAT(UI64_PREFIX,ui64_ror)
#define ui64_len UI64_CONCAT(UI64_PREFIX,ui64_len)
#define ui64_cmp UI64_CONCAT(UI64_PREFIX,ui64_cmp)
#endif
typedef struct {
unsigned char x[8]; /* x_0, ..., x_7 */
} ui64_t;
#define ui64_cons(x7,x6,x5,x4,x3,x2,x1,x0) \
{ { 0x##x0, 0x##x1, 0x##x2, 0x##x3, 0x##x4, 0x##x5, 0x##x6, 0x##x7 } }
/* particular values */
extern ui64_t ui64_zero (void);
extern ui64_t ui64_max (void);
/* import and export via ISO-C "unsigned long" */
extern ui64_t ui64_n2i (unsigned long n);
extern unsigned long ui64_i2n (ui64_t x);
/* import and export via ISO-C string of arbitrary base */
extern ui64_t ui64_s2i (const char *str, char **end, int base);
extern char * ui64_i2s (ui64_t x, char *str, size_t len, int base);
/* arithmetical operations */
extern ui64_t ui64_add (ui64_t x, ui64_t y, ui64_t *ov);
extern ui64_t ui64_addn (ui64_t x, int y, int *ov);
extern ui64_t ui64_sub (ui64_t x, ui64_t y, ui64_t *ov);
extern ui64_t ui64_subn (ui64_t x, int y, int *ov);
extern ui64_t ui64_mul (ui64_t x, ui64_t y, ui64_t *ov);
extern ui64_t ui64_muln (ui64_t x, int y, int *ov);
extern ui64_t ui64_div (ui64_t x, ui64_t y, ui64_t *ov);
extern ui64_t ui64_divn (ui64_t x, int y, int *ov);
/* bit operations */
extern ui64_t ui64_and (ui64_t x, ui64_t y);
extern ui64_t ui64_or (ui64_t x, ui64_t y);
extern ui64_t ui64_xor (ui64_t x, ui64_t y);
extern ui64_t ui64_not (ui64_t x);
extern ui64_t ui64_rol (ui64_t x, int s, ui64_t *ov);
extern ui64_t ui64_ror (ui64_t x, int s, ui64_t *ov);
/* other operations */
extern int ui64_len (ui64_t x);
extern int ui64_cmp (ui64_t x, ui64_t y);
#endif /* __UI64_H__ */
