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/** \noop-*-C++-*-vi:ft=cpp
* @file
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @warning Symbols prefixed with either `RUBY3` or `ruby3` are
* implementation details. Don't take them as canon. They could
* rapidly appear then vanish. The name (path) of this header file
* is also an implementation detail. Do not expect it to persist
* at the place it is now. Developers are free to move it anywhere
* anytime at will.
* @note To ruby-core: remember that this header can be possibly
* recursively included from extension libraries written in C++.
* Do not expect for instance `__VA_ARGS__` is always available.
* We assume C99 for ruby itself but we don't assume languages of
* extension libraries. They could be written in C++98.
* @brief Public APIs related to so-called rb_cBignum.
*/
#ifndef RUBY3_INTERN_BIGNUM_H
#define RUBY3_INTERN_BIGNUM_H
#include "ruby/3/config.h"
#ifdef STDC_HEADERS
# include <stddef.h>
#endif
#include "ruby/3/dllexport.h"
#include "ruby/3/value.h"
#include "ruby/backward/2/long_long.h"
RUBY3_SYMBOL_EXPORT_BEGIN()
/* bignum.c */
VALUE rb_big_new(size_t, int);
int rb_bigzero_p(VALUE x);
VALUE rb_big_clone(VALUE);
void rb_big_2comp(VALUE);
VALUE rb_big_norm(VALUE);
void rb_big_resize(VALUE big, size_t len);
VALUE rb_cstr_to_inum(const char*, int, int);
VALUE rb_str_to_inum(VALUE, int, int);
VALUE rb_cstr2inum(const char*, int);
VALUE rb_str2inum(VALUE, int);
VALUE rb_big2str(VALUE, int);
long rb_big2long(VALUE);
#define rb_big2int(x) rb_big2long(x)
unsigned long rb_big2ulong(VALUE);
#define rb_big2uint(x) rb_big2ulong(x)
#if HAVE_LONG_LONG
LONG_LONG rb_big2ll(VALUE);
unsigned LONG_LONG rb_big2ull(VALUE);
#endif /* HAVE_LONG_LONG */
void rb_big_pack(VALUE val, unsigned long *buf, long num_longs);
VALUE rb_big_unpack(unsigned long *buf, long num_longs);
int rb_uv_to_utf8(char[6],unsigned long);
VALUE rb_dbl2big(double);
double rb_big2dbl(VALUE);
VALUE rb_big_cmp(VALUE, VALUE);
VALUE rb_big_eq(VALUE, VALUE);
VALUE rb_big_eql(VALUE, VALUE);
VALUE rb_big_plus(VALUE, VALUE);
VALUE rb_big_minus(VALUE, VALUE);
VALUE rb_big_mul(VALUE, VALUE);
VALUE rb_big_div(VALUE, VALUE);
VALUE rb_big_idiv(VALUE, VALUE);
VALUE rb_big_modulo(VALUE, VALUE);
VALUE rb_big_divmod(VALUE, VALUE);
VALUE rb_big_pow(VALUE, VALUE);
VALUE rb_big_and(VALUE, VALUE);
VALUE rb_big_or(VALUE, VALUE);
VALUE rb_big_xor(VALUE, VALUE);
VALUE rb_big_lshift(VALUE, VALUE);
VALUE rb_big_rshift(VALUE, VALUE);
/* For rb_integer_pack and rb_integer_unpack: */
/* "MS" in MSWORD and MSBYTE means "most significant" */
/* "LS" in LSWORD and LSBYTE means "least significant" */
#define INTEGER_PACK_MSWORD_FIRST 0x01
#define INTEGER_PACK_LSWORD_FIRST 0x02
#define INTEGER_PACK_MSBYTE_FIRST 0x10
#define INTEGER_PACK_LSBYTE_FIRST 0x20
#define INTEGER_PACK_NATIVE_BYTE_ORDER 0x40
#define INTEGER_PACK_2COMP 0x80
#define INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION 0x400
/* For rb_integer_unpack: */
#define INTEGER_PACK_FORCE_BIGNUM 0x100
#define INTEGER_PACK_NEGATIVE 0x200
/* Combinations: */
#define INTEGER_PACK_LITTLE_ENDIAN \
(INTEGER_PACK_LSWORD_FIRST | \
INTEGER_PACK_LSBYTE_FIRST)
#define INTEGER_PACK_BIG_ENDIAN \
(INTEGER_PACK_MSWORD_FIRST | \
INTEGER_PACK_MSBYTE_FIRST)
int rb_integer_pack(VALUE val, void *words, size_t numwords, size_t wordsize, size_t nails, int flags);
VALUE rb_integer_unpack(const void *words, size_t numwords, size_t wordsize, size_t nails, int flags);
size_t rb_absint_size(VALUE val, int *nlz_bits_ret);
size_t rb_absint_numwords(VALUE val, size_t word_numbits, size_t *nlz_bits_ret);
int rb_absint_singlebit_p(VALUE val);
RUBY3_SYMBOL_EXPORT_END()
#endif /* RUBY3_INTERN_BIGNUM_H */
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