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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\math\tools\traits.hpp
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// Copyright John Maddock 2007. // Use, modification and distribution are subject to 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) /* This header defines two traits classes, both in namespace boost::math::tools. is_distribution
::value is true iff D has overloaded "cdf" and "quantile" functions, plus member typedefs value_type and policy_type. It's not much of a definitive test frankly, but if it looks like a distribution and quacks like a distribution then it must be a distribution. is_scaled_distribution
::value is true iff D is a distribution as defined above, and has member functions "scale" and "location". */ #ifndef BOOST_STATS_IS_DISTRIBUTION_HPP #define BOOST_STATS_IS_DISTRIBUTION_HPP #include
// should be the last #include #include
namespace boost{ namespace math{ namespace tools{ namespace detail{ BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_value_type, value_type, true) BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_policy_type, policy_type, true) template
char cdf(const D& ...); template
char quantile(const D& ...); template
struct has_cdf { static D d; BOOST_STATIC_CONSTANT(bool, value = sizeof(cdf(d, 0.0f)) != 1); }; template
struct has_quantile { static D d; BOOST_STATIC_CONSTANT(bool, value = sizeof(quantile(d, 0.0f)) != 1); }; template
struct is_distribution_imp { BOOST_STATIC_CONSTANT(bool, value = has_quantile
::value && has_cdf
::value && has_value_type
::value && has_policy_type
::value); }; template
struct result_tag{}; template
double test_has_location(const volatile result_tag
*); template
char test_has_location(...); template
double test_has_scale(const volatile result_tag
*); template
char test_has_scale(...); template
struct is_scaled_distribution_helper { BOOST_STATIC_CONSTANT(bool, value = false); }; template
struct is_scaled_distribution_helper
{ BOOST_STATIC_CONSTANT(bool, value = (sizeof(test_has_location
(0)) != 1) && (sizeof(test_has_scale
(0)) != 1)); }; template
struct is_scaled_distribution_imp { BOOST_STATIC_CONSTANT(bool, value = (::boost::math::tools::detail::is_scaled_distribution_helper
::value>::value)); }; } // namespace detail BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_distribution,T,::boost::math::tools::detail::is_distribution_imp
::value) BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_scaled_distribution,T,::boost::math::tools::detail::is_scaled_distribution_imp
::value) }}} #endif
traits.hpp
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