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45 lines
2.2 KiB
C++
45 lines
2.2 KiB
C++
#ifndef RBIMPL_INTERN_RANDOM_H /*-*-C++-*-vi:se ft=cpp:*/
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#define RBIMPL_INTERN_RANDOM_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 MT19937 backended pseudo random number generator.
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* @see Matsumoto, M., Nishimura, T., "Mersenne Twister: A 623-
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* dimensionally equidistributed uniform pseudorandom number
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* generator", ACM Trans. on Modeling and Computer Simulation, 8
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* (1): pp 3-30, 1998. https://doi.org/10.1145/272991.272995
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*/
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#include "ruby/internal/dllexport.h"
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#include "ruby/internal/value.h"
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RBIMPL_SYMBOL_EXPORT_BEGIN()
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/* random.c */
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unsigned int rb_genrand_int32(void);
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double rb_genrand_real(void);
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void rb_reset_random_seed(void);
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VALUE rb_random_bytes(VALUE rnd, long n);
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VALUE rb_random_int(VALUE rnd, VALUE max);
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unsigned int rb_random_int32(VALUE rnd);
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double rb_random_real(VALUE rnd);
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unsigned long rb_random_ulong_limited(VALUE rnd, unsigned long limit);
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unsigned long rb_genrand_ulong_limited(unsigned long i);
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RBIMPL_SYMBOL_EXPORT_END()
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#endif /* RBIMPL_INTERN_RANDOM_H */
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