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