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change generator access tarits

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bolero-MURAKAMI 2016-04-14 20:14:49 +09:00
parent 58b33d31c5
commit 75e164418b
12 changed files with 180 additions and 214 deletions
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2
sprout/container/at.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_at(cont, i) -> range_at(cont, i)
// [default]
// Container is T[N] -> cont[i]
// callable cont.at(i) -> cont.at(i)
// otherwise, callable cont.at(i) -> cont.at(i)
// otherwise -> *sprout::next(sprout::begin(cont), i)
//
template<typename Container>

2
sprout/container/back.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_back(cont) -> range_back(cont)
// [default]
// Container is T[N] -> cont[N - 1]
// callable cont.back() -> cont.back()
// otherwise, callable cont.back() -> cont.back()
// otherwise -> *sprout::next(sprout::begin(cont), sprout::size(cont) - 1)
//
template<typename Container>

2
sprout/container/empty.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_empty(cont) -> range_empty(cont)
// [default]
// Container is T[N] -> false
// callable cont.empty() -> cont.empty()
// otherwise, callable cont.empty() -> cont.empty()
// otherwise -> sprout::size(cont) == 0
//
template<typename Container>

2
sprout/container/front.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_front(cont) -> range_front(cont)
// [default]
// Container is T[N] -> cont[0]
// callable cont.front() -> cont.front()
// otherwise, callable cont.front() -> cont.front()
// otherwise -> *sprout::begin(cont)
//
template<typename Container>

2
sprout/container/index_of.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_index_of(cont, p) -> range_index_of(cont, p)
// [default]
// Container is T[N] -> p - iterator(cont)
// callable cont.index_of(p) -> cont.index_of(p)
// otherwise, callable cont.index_of(p) -> cont.index_of(p)
// otherwise -> sprout::distance(begin(cont), p)
//
template<typename Container>

2
sprout/container/nth.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_nth(cont, i) -> range_nth(cont, i)
// [default]
// Container is T[N] -> iterator(cont) + i
// callable cont.nth(i) -> cont.nth(i)
// otherwise, callable cont.nth(i) -> cont.nth(i)
// otherwise -> sprout::next(sprout::begin(cont), i)
//
template<typename Container>

2
sprout/container/size.hpp
View file

@ -23,7 +23,7 @@ namespace sprout {
// ADL callable range_size(cont) -> range_size(cont)
// [default]
// Container is T[N] -> N
// callable cont.size() -> cont.size()
// otherwise, callable cont.size() -> cont.size()
// otherwise -> distance(begin(cont), end(cont))
//
template<typename Container>

74
sprout/generator/generated_value.hpp
View file

@ -13,65 +13,6 @@
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/generator/generator_access_traits.hpp>
#include <sprout/adl/not_found.hpp>
namespace sprout_adl {
sprout::not_found_via_adl get_generated_value(...);
} // namespace sprout_adl
namespace sprout_generator_detail {
using sprout_adl::get_generated_value;
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen&>()))
get_generated_value(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen&>()))
{
return sprout::generators::generator_access_traits<Gen>::get_generated_value(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(sprout::generators::generator_access_traits<typename std::remove_reference<Gen>::type>::get_generated_value(std::declval<Gen&&>()))
>::type
get_generated_value(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<typename std::remove_reference<Gen>::type>::get_generated_value(std::declval<Gen&&>()))
{
return sprout::generators::generator_access_traits<Gen>::get_generated_value(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen const>::get_generated_value(std::declval<Gen const&>()))
get_generated_value(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen const>::get_generated_value(std::declval<Gen const&>()))
{
return sprout::generators::generator_access_traits<Gen const>::get_generated_value(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_generated_value(std::declval<Gen&>()))
call_get_generated_value(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_generated_value(std::declval<Gen&>()))
{
return get_generated_value(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(get_generated_value(std::declval<Gen&&>()))
>::type
call_get_generated_value(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_generated_value(std::declval<Gen&&>()))
{
return get_generated_value(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_generated_value(std::declval<Gen const&>()))
call_get_generated_value(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_generated_value(std::declval<Gen const&>()))
{
return get_generated_value(gen);
}
} // namespace sprout_generator_detail
namespace sprout {
namespace generators {
@ -79,18 +20,19 @@ namespace sprout {
// generated_value
//
// effect:
// ADL callable get_generated_value(t) -> get_generated_value(t)
// otherwise -> sprout::generators::generator_access_traits<T>::get_generated_value(t)
// sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_generated_value(t)
// [default]
// member callable t.generated_value() -> t.generated_value()
// otherwise -> sprout::tuples::get<0>(t)
// ADL callable get_generated_value(t) -> get_generated_value(t)
// [default]
// callable t.generated_value() -> t.generated_value()
// otherwise -> sprout::tuples::get<0>(t)
//
template<typename T>
inline SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<T>()))
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_generated_value(std::declval<T>()))
generated_value(T&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<T>()))
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_generated_value(std::declval<T>()))
{
return sprout_generator_detail::call_get_generated_value(SPROUT_FORWARD(T, t));
return sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_generated_value(SPROUT_FORWARD(T, t));
}
} // namespace generators

228
sprout/generator/generator_access_traits.hpp
View file

@ -11,9 +11,17 @@
#include <utility>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/type_traits/integral_constant.hpp>
#include <sprout/adl/not_found.hpp>
namespace sprout_adl {
sprout::not_found_via_adl get_generated_value(...);
sprout::not_found_via_adl get_next_generator(...);
} // namespace sprout_adl
namespace sprout {
namespace generators {
@ -41,57 +49,38 @@ namespace sprout {
#endif
template<typename Gen, typename = void>
struct generator_access_traits_generated_value_impl;
struct get_generated_value_helper;
template<typename Gen>
struct generator_access_traits_generated_value_impl<
struct get_generated_value_helper<
Gen,
typename std::enable_if<sprout::generators::detail::has_mem_generated_value<Gen>::value>::type
> {
public:
static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().generated_value())
get_generated_value(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().generated_value())
static SPROUT_CONSTEXPR decltype(std::declval<Gen>().generated_value())
call(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen>().generated_value())
{
return t.generated_value();
}
static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().generated_value())
get_generated_value(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().generated_value())
{
return t.generated_value();
}
static SPROUT_CONSTEXPR decltype(std::declval<Gen const&>().generated_value())
get_generated_value(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen const&>().generated_value())
{
return t.generated_value();
return SPROUT_FORWARD(Gen, t).generated_value();
}
};
template<typename Gen>
struct generator_access_traits_generated_value_impl<
struct get_generated_value_helper<
Gen,
typename std::enable_if<!sprout::generators::detail::has_mem_generated_value<Gen>::value>::type
> {
public:
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen&>()))
get_generated_value(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen&>()))
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen>()))
call(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen>()))
{
return sprout::tuples::get<0>(t);
}
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen&&>()))
get_generated_value(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen&>()))
{
return sprout::tuples::get<0>(t);
}
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<0>(std::declval<Gen const&>()))
get_generated_value(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<0>(std::declval<Gen const&>()))
{
return sprout::tuples::get<0>(t);
return sprout::tuples::get<0>(SPROUT_FORWARD(Gen, t));
}
};
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_helper<Gen>::call(std::declval<Gen>()))
get_generated_value_impl(Gen&& t) {
return sprout::generators::detail::get_generated_value_helper<Gen>::call(SPROUT_FORWARD(Gen, t));
}
template<typename T>
struct has_mem_next_generator_test {
@ -116,76 +105,169 @@ namespace sprout {
#endif
template<typename Gen, typename = void>
struct generator_access_traits_next_generator_impl;
struct get_next_generator_helper;
template<typename Gen>
struct generator_access_traits_next_generator_impl<
struct get_next_generator_helper<
Gen,
typename std::enable_if<sprout::generators::detail::has_mem_next_generator<Gen>::value>::type
> {
public:
static SPROUT_CONSTEXPR decltype(std::declval<Gen&>().next_generator())
get_next_generator(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&>().next_generator())
{
return t.next_generator();
}
static SPROUT_CONSTEXPR decltype(std::declval<Gen&&>().next_generator())
get_next_generator(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen&&>().next_generator())
{
return t.next_generator();
}
static SPROUT_CONSTEXPR decltype(std::declval<Gen const&>().next_generator())
get_next_generator(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen const&>().next_generator())
static SPROUT_CONSTEXPR decltype(std::declval<Gen>().next_generator())
call(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(std::declval<Gen>().next_generator())
{
return t.next_generator();
}
};
template<typename Gen>
struct generator_access_traits_next_generator_impl<
struct get_next_generator_helper<
Gen,
typename std::enable_if<!sprout::generators::detail::has_mem_next_generator<Gen>::value>::type
> {
public:
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen&>()))
get_next_generator(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen&>()))
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen>()))
call(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen>()))
{
return sprout::tuples::get<1>(t);
}
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen&&>()))
get_next_generator(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen&>()))
{
return sprout::tuples::get<1>(t);
}
static SPROUT_CONSTEXPR decltype(sprout::tuples::get<1>(std::declval<Gen const&>()))
get_next_generator(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::tuples::get<1>(std::declval<Gen const&>()))
{
return sprout::tuples::get<1>(t);
return sprout::tuples::get<1>(SPROUT_FORWARD(Gen, t));
}
};
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_helper<Gen>::call(std::declval<Gen>()))
get_next_generator_impl(Gen&& t) {
return sprout::generators::detail::get_next_generator_helper<Gen>::call(SPROUT_FORWARD(Gen, t));
}
} // namespace detail
} // namespace generators
} // namespace sprout
namespace sprout_generator_detail {
using sprout_adl::get_generated_value;
using sprout_adl::get_next_generator;
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&>()))
get_generated_value(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&>()))
{
return sprout::generators::detail::get_generated_value_impl(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&&>()))
>::type
get_generated_value(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen&&>()))
{
return sprout::generators::detail::get_generated_value_impl(sprout::move(gen));
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_generated_value_impl(std::declval<Gen const&>()))
get_generated_value(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_generated_value_impl(std::declval<Gen const&>()))
{
return sprout::generators::detail::get_generated_value_impl(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_generated_value(std::declval<Gen>()))
call_get_generated_value(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_generated_value(std::declval<Gen>()))
{
return get_generated_value(SPROUT_FORWARD(Gen, gen));
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&>()))
get_next_generator(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&>()))
{
return sprout::generators::detail::get_next_generator_impl(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&&>()))
>::type
get_next_generator(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen&&>()))
{
return sprout::generators::detail::get_next_generator_impl(sprout::move(gen));
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::detail::get_next_generator_impl(std::declval<Gen const&>()))
get_next_generator(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::detail::get_next_generator_impl(std::declval<Gen const&>()))
{
return sprout::generators::detail::get_next_generator_impl(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_next_generator(std::declval<Gen>()))
call_get_next_generator(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_next_generator(std::declval<Gen>()))
{
return get_next_generator(SPROUT_FORWARD(Gen, gen));
}
} // namespace sprout_generator_detail
namespace sprout {
namespace generators {
//
// generator_access_traits
//
template<typename Gen>
struct generator_access_traits
: public sprout::generators::detail::generator_access_traits_generated_value_impl<Gen>
, public sprout::generators::detail::generator_access_traits_next_generator_impl<Gen>
{};
struct generator_access_traits {
public:
// get_generated_value
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
get_generated_value(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<Gen&>()))
{
return sprout_generator_detail::call_get_generated_value(t);
}
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<Gen&&>()))
get_generated_value(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<Gen&&>()))
{
return sprout_generator_detail::call_get_generated_value(sprout::move(t));
}
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_generated_value(std::declval<Gen const&>()))
get_generated_value(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_generated_value(std::declval<Gen const&>()))
{
return sprout_generator_detail::call_get_generated_value(t);
}
// get_next_generator
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
get_next_generator(Gen& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<Gen&>()))
{
return sprout_generator_detail::call_get_next_generator(t);
}
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<Gen&&>()))
get_next_generator(Gen&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<Gen&&>()))
{
return sprout_generator_detail::call_get_next_generator(sprout::move(t));
}
static SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<Gen const&>()))
get_next_generator(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<Gen const&>()))
{
return sprout_generator_detail::call_get_next_generator(t);
}
};
template<typename Gen>
struct generator_access_traits<Gen const> {
public:
// get_generated_value
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
get_generated_value(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_generated_value(std::declval<Gen const&>()))
{
return sprout::generators::generator_access_traits<Gen>::get_generated_value(t);
}
// get_next_generator
static SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))
get_next_generator(Gen const& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen const&>()))

74
sprout/generator/next_generator.hpp
View file

@ -13,65 +13,6 @@
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/generator/generator_access_traits.hpp>
#include <sprout/adl/not_found.hpp>
namespace sprout_adl {
sprout::not_found_via_adl get_next_generator(...);
} // namespace sprout_adl
namespace sprout_generator_detail {
using sprout_adl::get_next_generator;
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen&>()))
get_next_generator(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen>::get_next_generator(std::declval<Gen&>()))
{
return sprout::generators::generator_access_traits<Gen>::get_next_generator(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(sprout::generators::generator_access_traits<typename std::remove_reference<Gen>::type>::get_next_generator(std::declval<Gen&&>()))
>::type
get_next_generator(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<typename std::remove_reference<Gen>::type>::get_next_generator(std::declval<Gen&&>()))
{
return sprout::generators::generator_access_traits<Gen>::get_next_generator(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<Gen const>::get_next_generator(std::declval<Gen const&>()))
get_next_generator(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<Gen const>::get_next_generator(std::declval<Gen const&>()))
{
return sprout::generators::generator_access_traits<Gen const>::get_next_generator(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_next_generator(std::declval<Gen&>()))
call_get_next_generator(Gen& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_next_generator(std::declval<Gen&>()))
{
return get_next_generator(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR typename std::enable_if<
!std::is_const<Gen>::value && !std::is_volatile<Gen>::value && !std::is_reference<Gen>::value,
decltype(get_next_generator(std::declval<Gen&&>()))
>::type
call_get_next_generator(Gen&& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_next_generator(std::declval<Gen&&>()))
{
return get_next_generator(gen);
}
template<typename Gen>
inline SPROUT_CONSTEXPR decltype(get_next_generator(std::declval<Gen const&>()))
call_get_next_generator(Gen const& gen)
SPROUT_NOEXCEPT_IF_EXPR(get_next_generator(std::declval<Gen const&>()))
{
return get_next_generator(gen);
}
} // namespace sprout_generator_detail
namespace sprout {
namespace generators {
@ -79,18 +20,19 @@ namespace sprout {
// next_generator
//
// effect:
// ADL callable get_next_generator(t) -> get_next_generator(t)
// otherwise -> sprout::generators::generator_access_traits<T>::get_next_generator(t)
// sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_next_generator(t)
// [default]
// member callable t.next_generator() -> t.next_generator()
// otherwise -> sprout::tuples::get<0>(t)
// ADL callable get_next_generator(t) -> get_next_generator(t)
// [default]
// callable t.next_generator() -> t.next_generator()
// otherwise -> sprout::tuples::get<0>(t)
//
template<typename T>
inline SPROUT_CONSTEXPR decltype(sprout_generator_detail::call_get_next_generator(std::declval<T>()))
inline SPROUT_CONSTEXPR decltype(sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_next_generator(std::declval<T>()))
next_generator(T&& t)
SPROUT_NOEXCEPT_IF_EXPR(sprout_generator_detail::call_get_next_generator(std::declval<T>()))
SPROUT_NOEXCEPT_IF_EXPR(sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_next_generator(std::declval<T>()))
{
return sprout_generator_detail::call_get_next_generator(SPROUT_FORWARD(T, t));
return sprout::generators::generator_access_traits<typename std::remove_reference<T>::type>::get_next_generator(SPROUT_FORWARD(T, t));
}
} // namespace generators

2
sprout/iterator/next.hpp
View file

@ -162,7 +162,7 @@ namespace sprout {
//
// effect:
// ADL callable iterator_next(it) -> iterator_next(it)
// it is RandomAccessIterator -> it + 1
// otherwise, InputIterator is RandomAccessIterator -> it + 1
// otherwise -> cxx14_next(it)
//
template<typename InputIterator>

2
sprout/iterator/prev.hpp
View file

@ -137,7 +137,7 @@ namespace sprout {
//
// effect:
// ADL callable iterator_prev(it) -> iterator_prev(it)
// it is RandomAccessIterator -> it - 1
// otherwise, BidirectionalIterator is RandomAccessIterator -> it - 1
// otherwise -> cxx14_prev(it)
//
template<typename BidirectionalIterator>