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fix tuple_element: support SFINAE-friendly

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bolero-MURAKAMI 2014-05-29 00:25:37 +09:00
parent f42e92b448
commit c15de6136b
64 changed files with 984 additions and 113 deletions
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37
sprout/random/random_result.hpp
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@ -21,6 +21,8 @@
#include <sprout/utility/swap.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/detail/nil_base.hpp>
namespace sprout {
namespace random {
@ -65,14 +67,12 @@ namespace sprout {
generator_type generator_;
public:
SPROUT_CONSTEXPR random_result()
: result_()
, generator_()
: result_(), generator_()
{}
random_result(random_result const&) = default;
SPROUT_CONSTEXPR random_result(
result_type result,
engine_type const& engine,
distribution_type const& distribution
engine_type const& engine, distribution_type const& distribution
)
: result_(result)
, generator_(engine, distribution)
@ -199,16 +199,11 @@ namespace sprout {
generator_type generator_;
public:
SPROUT_CONSTEXPR random_result()
: result_()
, generator_()
: result_(), generator_()
{}
random_result(random_result const&) = default;
SPROUT_CONSTEXPR random_result(
result_type result,
engine_type const& engine
)
: result_(result)
, generator_(engine)
SPROUT_CONSTEXPR random_result(result_type result, engine_type const& engine)
: result_(result), generator_(engine)
{}
SPROUT_CONSTEXPR random_result operator()() const {
return generator_();
@ -316,16 +311,18 @@ namespace sprout {
namespace detail {
template<std::size_t I, typename T>
struct tuple_element_impl;
template<std::size_t I, typename Engine, typename Distribution>
struct tuple_element_impl<I, sprout::random::random_result<Engine, Distribution> >
: public sprout::detail::nil_base
{};
template<typename Engine, typename Distribution>
struct tuple_element_impl<0, sprout::random::random_result<Engine, Distribution> > {
public:
typedef typename sprout::random::random_result<Engine, Distribution>::result_type type;
};
struct tuple_element_impl<0, sprout::random::random_result<Engine, Distribution> >
: public sprout::identity<typename sprout::random::random_result<Engine, Distribution>::result_type>
{};
template<typename Engine, typename Distribution>
struct tuple_element_impl<1, sprout::random::random_result<Engine, Distribution> > {
public:
typedef typename sprout::random::random_result<Engine, Distribution>::generator_type type;
};
struct tuple_element_impl<1, sprout::random::random_result<Engine, Distribution> >
: public sprout::identity<typename sprout::random::random_result<Engine, Distribution>::generator_type>
{};
template<std::size_t I, typename T>
struct get_impl;