test: epoc32/include/stdapis/boost/random/uniform

     1 /* boost random/uniform_real.hpp header file

     2  *

     3  * Copyright Jens Maurer 2000-2001

     4  * Distributed under the Boost Software License, Version 1.0. (See

     5  * accompanying file LICENSE_1_0.txt or copy at

     6  * http://www.boost.org/LICENSE_1_0.txt)

     7  *

     8  * See http://www.boost.org for most recent version including documentation.

     9  *

    10  * $Id: uniform_real.hpp,v 1.17 2005/01/28 15:04:17 dgregor Exp $

    11  *

    12  * Revision history

    13  *  2001-04-08  added min<max assertion (N. Becker)

    14  *  2001-02-18  moved to individual header files

    15  */

    17 #ifndef BOOST_RANDOM_UNIFORM_REAL_HPP

    18 #define BOOST_RANDOM_UNIFORM_REAL_HPP

    20 #include <cassert>

    21 #include <iostream>

    22 #include <boost/config.hpp>

    23 #include <boost/limits.hpp>

    24 #include <boost/static_assert.hpp>

    26 namespace boost {

    28 // uniform distribution on a real range

    29 template<class RealType = double>

    30 class uniform_real

    31 {

    32 public:

    33   typedef RealType input_type;

    34   typedef RealType result_type;

    36   explicit uniform_real(RealType min = RealType(0),

    37                         RealType max = RealType(1))

    38     : _min(min), _max(max)

    39   {

    40 #ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS

    41     BOOST_STATIC_ASSERT(!std::numeric_limits<RealType>::is_integer);

    42 #endif

    43     assert(min < max);

    44   }

    46   // compiler-generated copy ctor and assignment operator are fine

    48   result_type min BOOST_PREVENT_MACRO_SUBSTITUTION () const { return _min; }

    49   result_type max BOOST_PREVENT_MACRO_SUBSTITUTION () const { return _max; }

    50   void reset() { }

    52   template<class Engine>

    53   result_type operator()(Engine& eng) {

    54     return static_cast<result_type>(eng() - eng.min BOOST_PREVENT_MACRO_SUBSTITUTION())

    55            / static_cast<result_type>(eng.max BOOST_PREVENT_MACRO_SUBSTITUTION() - eng.min BOOST_PREVENT_MACRO_SUBSTITUTION())

    56            * (_max - _min) + _min;

    57   }

    59 #if !defined(BOOST_NO_OPERATORS_IN_NAMESPACE) && !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)

    60   template<class CharT, class Traits>

    61   friend std::basic_ostream<CharT,Traits>&

    62   operator<<(std::basic_ostream<CharT,Traits>& os, const uniform_real& ud)

    63   {

    64     os << ud._min << " " << ud._max;

    65     return os;

    66   }

    68   template<class CharT, class Traits>

    69   friend std::basic_istream<CharT,Traits>&

    70   operator>>(std::basic_istream<CharT,Traits>& is, uniform_real& ud)

    71   {

    72     is >> std::ws >> ud._min >> std::ws >> ud._max;

    73     return is;

    74   }

    75 #endif

    77 private:

    78   RealType _min, _max;

    79 };

    81 } // namespace boost

    83 #endif // BOOST_RANDOM_UNIFORM_REAL_HPP

author	William Roberts <williamr@symbian.org>
	Wed, 31 Mar 2010 12:33:34 +0100
branch	Symbian3
changeset 4	837f303aceeb
permissions	-rw-r--r--