mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/**
|
|
** @file mruby/bigint.h - Multi-precision Integer
|
|
**
|
|
** See Copyright Notice in mruby.h
|
|
*/
|
|
|
|
#ifndef MRUBY_BIGINT_H
|
|
#define MRUBY_BIGINT_H
|
|
/*
|
|
* FREE GMP - a public domain implementation of a subset of the
|
|
* gmp library
|
|
*
|
|
* I hearby place the file in the public domain.
|
|
*
|
|
* Do whatever you want with this code. Change it. Sell it. Claim you
|
|
* wrote it.
|
|
* Bugs, complaints, flames, rants: please send email to
|
|
* Mark Henderson <markh@wimsey.bc.ca>
|
|
* I'm already aware that fgmp is considerably slower than gmp
|
|
*
|
|
* CREDITS:
|
|
* Paul Rouse <par@r-cube.demon.co.uk> - generic bug fixes, mpz_sqrt and
|
|
* mpz_sqrtrem, and modifications to get fgmp to compile on a system
|
|
* with int and long of different sizes (specifically MS-DOS,286 compiler)
|
|
* Also see the file "notes" included with the fgmp distribution, for
|
|
* more credits.
|
|
*
|
|
* VERSION 1.0 - beta 5
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#if defined(MRB_INT32) && defined(_WIN32) && !defined(MRB_NO_MPZ64BIT)
|
|
#define MRB_NO_MPZ64BIT
|
|
#endif
|
|
|
|
#ifdef MRB_NO_MPZ64BIT
|
|
typedef uint16_t mp_limb;
|
|
typedef uint32_t mp_dbl_limb;
|
|
typedef int32_t mp_dbl_limb_signed;
|
|
#define MPZ_DIG_SIZE 16
|
|
#else
|
|
typedef uint32_t mp_limb;
|
|
typedef uint64_t mp_dbl_limb;
|
|
typedef int64_t mp_dbl_limb_signed;
|
|
#define MPZ_DIG_SIZE 32
|
|
#endif
|
|
|
|
typedef struct _mpz_t {
|
|
mp_limb *p;
|
|
short sn;
|
|
size_t sz;
|
|
} mpz_t;
|
|
|
|
struct RBigint {
|
|
MRB_OBJECT_HEADER;
|
|
mpz_t mp;
|
|
};
|
|
#define RBIGINT(v) ((struct RBigint*)mrb_ptr(v))
|
|
|
|
mrb_static_assert_object_size(struct RBigint);
|
|
|
|
#endif /* MRUBY_BIGINT_H */
|