diff options
Diffstat (limited to 'contrib/src/boost/random/detail/uniform_int_float.hpp')
-rw-r--r-- | contrib/src/boost/random/detail/uniform_int_float.hpp | 152 |
1 files changed, 76 insertions, 76 deletions
diff --git a/contrib/src/boost/random/detail/uniform_int_float.hpp b/contrib/src/boost/random/detail/uniform_int_float.hpp index 393c455..893e471 100644 --- a/contrib/src/boost/random/detail/uniform_int_float.hpp +++ b/contrib/src/boost/random/detail/uniform_int_float.hpp @@ -1,76 +1,76 @@ -/* boost random/detail/uniform_int_float.hpp header file - * - * Copyright Jens Maurer 2000-2001 - * Copyright Steven Watanabe 2011 - * 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. - * - * $Id$ - * - */ - -#ifndef BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP -#define BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP - -#include <boost/limits.hpp> -#include <boost/config.hpp> -#include <boost/integer.hpp> -#include <boost/random/detail/config.hpp> -#include <boost/random/detail/generator_bits.hpp> - -#include <boost/random/detail/disable_warnings.hpp> - -namespace boost { -namespace random { -namespace detail { - -template<class URNG> -class uniform_int_float -{ -public: - typedef URNG base_type; - typedef typename base_type::result_type base_result; - - typedef typename boost::uint_t< - (std::numeric_limits<boost::uintmax_t>::digits < - std::numeric_limits<base_result>::digits)? - std::numeric_limits<boost::uintmax_t>::digits : - std::numeric_limits<base_result>::digits - >::fast result_type; - - uniform_int_float(base_type& rng) - : _rng(rng) {} - - static result_type min BOOST_PREVENT_MACRO_SUBSTITUTION () - { return 0; } - static result_type max BOOST_PREVENT_MACRO_SUBSTITUTION () - { - std::size_t digits = std::numeric_limits<result_type>::digits; - if(detail::generator_bits<URNG>::value() < digits) { - digits = detail::generator_bits<URNG>::value(); - } - return (result_type(2) << (digits - 1)) - 1; - } - base_type& base() { return _rng; } - const base_type& base() const { return _rng; } - - result_type operator()() - { - base_result range = static_cast<base_result>((max)())+1; - return static_cast<result_type>(_rng() * range); - } - -private: - base_type& _rng; -}; - -} // namespace detail -} // namespace random -} // namespace boost - -#include <boost/random/detail/enable_warnings.hpp> - -#endif // BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP +/* boost random/detail/uniform_int_float.hpp header file
+ *
+ * Copyright Jens Maurer 2000-2001
+ * Copyright Steven Watanabe 2011
+ * 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.
+ *
+ * $Id$
+ *
+ */
+
+#ifndef BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
+#define BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
+
+#include <boost/limits.hpp>
+#include <boost/config.hpp>
+#include <boost/integer.hpp>
+#include <boost/random/detail/config.hpp>
+#include <boost/random/detail/generator_bits.hpp>
+
+#include <boost/random/detail/disable_warnings.hpp>
+
+namespace boost {
+namespace random {
+namespace detail {
+
+template<class URNG>
+class uniform_int_float
+{
+public:
+ typedef URNG base_type;
+ typedef typename base_type::result_type base_result;
+
+ typedef typename boost::uint_t<
+ (std::numeric_limits<boost::uintmax_t>::digits <
+ std::numeric_limits<base_result>::digits)?
+ std::numeric_limits<boost::uintmax_t>::digits :
+ std::numeric_limits<base_result>::digits
+ >::fast result_type;
+
+ uniform_int_float(base_type& rng)
+ : _rng(rng) {}
+
+ static result_type min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+ { return 0; }
+ static result_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+ {
+ std::size_t digits = std::numeric_limits<result_type>::digits;
+ if(detail::generator_bits<URNG>::value() < digits) {
+ digits = detail::generator_bits<URNG>::value();
+ }
+ return (result_type(2) << (digits - 1)) - 1;
+ }
+ base_type& base() { return _rng; }
+ const base_type& base() const { return _rng; }
+
+ result_type operator()()
+ {
+ base_result range = static_cast<base_result>((max)())+1;
+ return static_cast<result_type>(_rng() * range);
+ }
+
+private:
+ base_type& _rng;
+};
+
+} // namespace detail
+} // namespace random
+} // namespace boost
+
+#include <boost/random/detail/enable_warnings.hpp>
+
+#endif // BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
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