#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/function.hpp>
#include <boost/mp11/utility.hpp>
+#include <boost/variant2/variant.hpp>
#include <iterator>
#include <tuple>
#include <type_traits>
namespace histogram {
namespace detail {
-#define BOOST_HISTOGRAM_DETECT(name, cond) \
- template <class T, class = decltype(cond)> \
- struct name##_impl {}; \
- template <class T> \
- struct name : mp11::mp_valid<name##_impl, T>::type {}
+#define BOOST_HISTOGRAM_DETAIL_DETECT(name, cond) \
+ template <class T> \
+ using name##_impl = decltype(cond); \
+ template <class T> \
+ using name = typename boost::mp11::mp_valid<name##_impl, T>::type
-#define BOOST_HISTOGRAM_DETECT_BINARY(name, cond) \
- template <class T, class U, class = decltype(cond)> \
- struct name##_impl {}; \
- template <class T, class U = T> \
- struct name : mp11::mp_valid<name##_impl, T, U>::type {}
+#define BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(name, cond) \
+ template <class T, class U> \
+ using name##_impl = decltype(cond); \
+ template <class T, class U = T> \
+ using name = typename boost::mp11::mp_valid<name##_impl, T, U>::type
// metadata has overloads, trying to get pmf in this case always fails
-BOOST_HISTOGRAM_DETECT(has_method_metadata, (std::declval<T&>().metadata()));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_metadata, (std::declval<T&>().metadata()));
// resize has overloads, trying to get pmf in this case always fails
-BOOST_HISTOGRAM_DETECT(has_method_resize, (std::declval<T&>().resize(0)));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_resize, (std::declval<T&>().resize(0)));
-BOOST_HISTOGRAM_DETECT(has_method_size, &T::size);
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_size, &T::size);
-BOOST_HISTOGRAM_DETECT(has_method_clear, &T::clear);
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_clear, &T::clear);
-BOOST_HISTOGRAM_DETECT(has_method_lower, &T::lower);
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_lower, &T::lower);
-BOOST_HISTOGRAM_DETECT(has_method_value, &T::value);
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_value, &T::value);
-BOOST_HISTOGRAM_DETECT(has_method_update, (&T::update));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_update, &T::update);
// reset has overloads, trying to get pmf in this case always fails
-BOOST_HISTOGRAM_DETECT(has_method_reset, (std::declval<T>().reset(0)));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_reset, (std::declval<T>().reset(0)));
-BOOST_HISTOGRAM_DETECT(has_method_options, (&T::options));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_method_options, &T::options);
-BOOST_HISTOGRAM_DETECT(has_allocator, &T::get_allocator);
+BOOST_HISTOGRAM_DETAIL_DETECT(has_allocator, &T::get_allocator);
-BOOST_HISTOGRAM_DETECT(is_indexable, (std::declval<T&>()[0]));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_indexable, (std::declval<T&>()[0]));
-BOOST_HISTOGRAM_DETECT(is_transform, (&T::forward, &T::inverse));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(
+ is_transform,
+ (std::declval<T&>().inverse(std::declval<T&>().forward(std::declval<U>()))));
-BOOST_HISTOGRAM_DETECT(is_indexable_container,
- (std::declval<T>()[0], &T::size, std::begin(std::declval<T>()),
- std::end(std::declval<T>())));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_indexable_container, (std::declval<T>()[0], &T::size,
+ std::begin(std::declval<T>()),
+ std::end(std::declval<T>())));
-BOOST_HISTOGRAM_DETECT(is_vector_like,
- (std::declval<T>()[0], &T::size, std::declval<T>().resize(0),
- std::begin(std::declval<T>()), std::end(std::declval<T>())));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_vector_like,
+ (std::declval<T>()[0], &T::size,
+ std::declval<T>().resize(0), std::begin(std::declval<T>()),
+ std::end(std::declval<T>())));
-BOOST_HISTOGRAM_DETECT(is_array_like,
- (std::declval<T>()[0], &T::size, std::tuple_size<T>::value,
- std::begin(std::declval<T>()), std::end(std::declval<T>())));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_array_like,
+ (std::declval<T>()[0], &T::size, std::tuple_size<T>::value,
+ std::begin(std::declval<T>()),
+ std::end(std::declval<T>())));
-BOOST_HISTOGRAM_DETECT(is_map_like,
- (std::declval<typename T::key_type>(),
- std::declval<typename T::mapped_type>(),
- std::begin(std::declval<T>()), std::end(std::declval<T>())));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_map_like, (std::declval<typename T::key_type>(),
+ std::declval<typename T::mapped_type>(),
+ std::begin(std::declval<T>()),
+ std::end(std::declval<T>())));
// ok: is_axis is false for axis::variant, because T::index is templated
-BOOST_HISTOGRAM_DETECT(is_axis, (&T::size, &T::index));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_axis, (&T::size, &T::index));
-BOOST_HISTOGRAM_DETECT(is_iterable,
- (std::begin(std::declval<T&>()), std::end(std::declval<T&>())));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_iterable, (std::begin(std::declval<T&>()),
+ std::end(std::declval<T&>())));
-BOOST_HISTOGRAM_DETECT(is_iterator,
- (typename std::iterator_traits<T>::iterator_category()));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_iterator,
+ (typename std::iterator_traits<T>::iterator_category()));
-BOOST_HISTOGRAM_DETECT(is_streamable,
- (std::declval<std::ostream&>() << std::declval<T&>()));
+BOOST_HISTOGRAM_DETAIL_DETECT(is_streamable,
+ (std::declval<std::ostream&>() << std::declval<T&>()));
-BOOST_HISTOGRAM_DETECT(has_operator_preincrement, (++std::declval<T&>()));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_operator_preincrement, (++std::declval<T&>()));
-BOOST_HISTOGRAM_DETECT_BINARY(has_operator_equal,
- (std::declval<const T&>() == std::declval<const U>()));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(has_operator_equal, (std::declval<const T&>() ==
+ std::declval<const U>()));
-BOOST_HISTOGRAM_DETECT_BINARY(has_operator_radd,
- (std::declval<T&>() += std::declval<U>()));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(has_operator_radd,
+ (std::declval<T&>() += std::declval<U>()));
-BOOST_HISTOGRAM_DETECT_BINARY(has_operator_rsub,
- (std::declval<T&>() -= std::declval<U>()));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(has_operator_rsub,
+ (std::declval<T&>() -= std::declval<U>()));
-BOOST_HISTOGRAM_DETECT_BINARY(has_operator_rmul,
- (std::declval<T&>() *= std::declval<U>()));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(has_operator_rmul,
+ (std::declval<T&>() *= std::declval<U>()));
-BOOST_HISTOGRAM_DETECT_BINARY(has_operator_rdiv,
- (std::declval<T&>() /= std::declval<U>()));
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(has_operator_rdiv,
+ (std::declval<T&>() /= std::declval<U>()));
-BOOST_HISTOGRAM_DETECT_BINARY(
+BOOST_HISTOGRAM_DETAIL_DETECT_BINARY(
has_method_eq, (std::declval<const T>().operator==(std::declval<const U>())));
-BOOST_HISTOGRAM_DETECT(has_threading_support, (T::has_threading_support));
+BOOST_HISTOGRAM_DETAIL_DETECT(has_threading_support, (T::has_threading_support));
-template <typename T>
-struct is_weight_impl : std::false_type {};
-
-template <typename T>
-struct is_weight_impl<weight_type<T>> : std::true_type {};
-
-template <typename T>
-using is_weight = is_weight_impl<std::decay_t<T>>;
-
-template <typename T>
-struct is_sample_impl : std::false_type {};
-
-template <typename T>
-struct is_sample_impl<sample_type<T>> : std::true_type {};
-
-template <typename T>
-using is_sample = is_sample_impl<std::decay_t<T>>;
-
-template <typename T>
+template <class T>
using is_storage = mp11::mp_and<is_indexable_container<T>, has_method_reset<T>,
has_threading_support<T>>;
template <class T>
-using is_adaptible = mp11::mp_or<is_vector_like<T>, is_array_like<T>, is_map_like<T>>;
+using is_adaptible =
+ mp11::mp_and<mp11::mp_not<is_storage<T>>,
+ mp11::mp_or<is_vector_like<T>, is_array_like<T>, is_map_like<T>>>;
-template <class T, class _ = std::decay_t<T>,
- class = std::enable_if_t<(is_storage<_>::value || is_adaptible<_>::value)>>
-struct requires_storage_or_adaptible {};
-
-template <typename T>
-struct is_tuple_impl : std::false_type {};
+template <class T>
+struct is_tuple_impl : mp11::mp_false {};
-template <typename... Ts>
-struct is_tuple_impl<std::tuple<Ts...>> : std::true_type {};
+template <class... Ts>
+struct is_tuple_impl<std::tuple<Ts...>> : mp11::mp_true {};
-template <typename T>
+template <class T>
using is_tuple = typename is_tuple_impl<T>::type;
-template <typename T>
-struct is_axis_variant_impl : std::false_type {};
+template <class T>
+struct is_variant_impl : mp11::mp_false {};
+
+template <class... Ts>
+struct is_variant_impl<boost::variant2::variant<Ts...>> : mp11::mp_true {};
-template <typename... Ts>
-struct is_axis_variant_impl<axis::variant<Ts...>> : std::true_type {};
+template <class T>
+using is_variant = typename is_variant_impl<T>::type;
+
+template <class T>
+struct is_axis_variant_impl : mp11::mp_false {};
+
+template <class... Ts>
+struct is_axis_variant_impl<axis::variant<Ts...>> : mp11::mp_true {};
-template <typename T>
+template <class T>
using is_axis_variant = typename is_axis_variant_impl<T>::type;
-template <typename T>
+template <class T>
using is_any_axis = mp11::mp_or<is_axis<T>, is_axis_variant<T>>;
-template <typename T>
+template <class T>
using is_sequence_of_axis = mp11::mp_and<is_iterable<T>, is_axis<mp11::mp_first<T>>>;
-template <typename T>
+template <class T>
using is_sequence_of_axis_variant =
mp11::mp_and<is_iterable<T>, is_axis_variant<mp11::mp_first<T>>>;
-template <typename T>
+template <class T>
using is_sequence_of_any_axis =
mp11::mp_and<is_iterable<T>, is_any_axis<mp11::mp_first<T>>>;
// poor-mans concept checks
+template <class T, class = std::enable_if_t<is_storage<std::decay_t<T>>::value>>
+struct requires_storage {};
+
+template <class T, class _ = std::decay_t<T>,
+ class = std::enable_if_t<(is_storage<_>::value || is_adaptible<_>::value)>>
+struct requires_storage_or_adaptible {};
+
template <class T, class = std::enable_if_t<is_iterator<std::decay_t<T>>::value>>
struct requires_iterator {};
template <class T, class U, class = std::enable_if_t<std::is_convertible<T, U>::value>>
struct requires_convertible {};
+template <class T, class U,
+ class = std::enable_if_t<is_transform<std::decay_t<T>, U>::value>>
+struct requires_transform {};
+
} // namespace detail
} // namespace histogram
} // namespace boost
projects / platform / upstream / boost.git / blobdiff