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100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/* boost random/uniform_int.hpp header file
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*
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* Copyright Jens Maurer 2000-2001
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id$
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*
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* Revision history
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* 2001-04-08 added min<max assertion (N. Becker)
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* 2001-02-18 moved to individual header files
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*/
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#ifndef BOOST_RANDOM_UNIFORM_INT_HPP
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#define BOOST_RANDOM_UNIFORM_INT_HPP
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#include <boost/assert.hpp>
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#include <boost/random/uniform_int_distribution.hpp>
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namespace boost {
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/**
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* The distribution function uniform_int models a \random_distribution.
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* On each invocation, it returns a random integer value uniformly
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* distributed in the set of integer numbers {min, min+1, min+2, ..., max}.
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*
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* The template parameter IntType shall denote an integer-like value type.
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*
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* This class is deprecated. Please use @c uniform_int_distribution in
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* new code.
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*/
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template<class IntType = int>
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class uniform_int : public random::uniform_int_distribution<IntType>
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{
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typedef random::uniform_int_distribution<IntType> base_type;
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public:
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class param_type : public base_type::param_type
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{
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public:
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typedef uniform_int distribution_type;
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/**
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* Constructs the parameters of a uniform_int distribution.
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*
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* Requires: min <= max
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*/
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explicit param_type(IntType min_arg = 0, IntType max_arg = 9)
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: base_type::param_type(min_arg, max_arg)
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{}
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};
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/**
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* Constructs a uniform_int object. @c min and @c max are
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* the parameters of the distribution.
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*
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* Requires: min <= max
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*/
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explicit uniform_int(IntType min_arg = 0, IntType max_arg = 9)
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: base_type(min_arg, max_arg)
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{}
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/** Constructs a uniform_int distribution from its parameters. */
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explicit uniform_int(const param_type& parm)
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: base_type(parm)
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{}
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/** Returns the parameters of the distribution */
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param_type param() const { return param_type(this->a(), this->b()); }
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/** Sets the parameters of the distribution. */
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void param(const param_type& parm) { this->base_type::param(parm); }
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// Codergear seems to have trouble with a using declaration here
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template<class Engine>
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IntType operator()(Engine& eng) const
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{
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return static_cast<const base_type&>(*this)(eng);
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}
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template<class Engine>
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IntType operator()(Engine& eng, const param_type& parm) const
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{
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return static_cast<const base_type&>(*this)(eng, parm);
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}
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template<class Engine>
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IntType operator()(Engine& eng, IntType n) const
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{
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BOOST_ASSERT(n > 0);
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return static_cast<const base_type&>(*this)(eng, param_type(0, n - 1));
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}
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};
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} // namespace boost
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#endif // BOOST_RANDOM_UNIFORM_INT_HPP
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