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