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-rw-r--r--include/yacppdic/detail/factory-impl.hpp78
-rw-r--r--include/yacppdic/detail/internal/compressed_pair-impl.hpp98
-rw-r--r--include/yacppdic/detail/internal/compressed_pair.hpp148
-rw-r--r--include/yacppdic/detail/internal/factory_base.hpp24
-rw-r--r--include/yacppdic/detail/internal/tuple_indices.hpp39
-rw-r--r--include/yacppdic/factory.hpp133
6 files changed, 297 insertions, 223 deletions
diff --git a/include/yacppdic/detail/factory-impl.hpp b/include/yacppdic/detail/factory-impl.hpp
index 3deede2..c6da207 100644
--- a/include/yacppdic/detail/factory-impl.hpp
+++ b/include/yacppdic/detail/factory-impl.hpp
@@ -5,18 +5,19 @@
namespace yacppdic
{
-template <class Return, class... Args>
-Factory<Return(Args...)>::Factory(const Factory &factory) : _functor(factory._functor)
+template <typename Return, typename... Args>
+Factory<Return(Args...)>::Factory(const Factory &factory) noexcept
+ : _functor(factory._functor)
{
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
Factory<Return(Args...)>::Factory(Factory &&factory) noexcept
: _functor(std::move(factory._functor))
{
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
auto Factory<Return(Args...)>::operator=(Factory &&factory) noexcept
-> Factory<Return(Args...)> &
{
@@ -24,7 +25,7 @@ auto Factory<Return(Args...)>::operator=(Factory &&factory) noexcept
return *this;
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
auto Factory<Return(Args...)>::operator=(std::nullptr_t) noexcept
-> Factory<Return(Args...)> &
{
@@ -32,39 +33,88 @@ auto Factory<Return(Args...)>::operator=(std::nullptr_t) noexcept
return *this;
}
-template <class Return, class... Args>
-Factory<Return(Args...)>::~Factory() = default;
-
-template <class Return, class... Args>
+template <typename Return, typename... Args>
Factory<Return(Args...)>::operator bool() const noexcept
{
return static_cast<bool>(_functor);
}
-template <class Return, class... Args>
-auto Factory<Return(Args...)>::operator()(Args... args) const -> Return
+template <typename Return, typename... Args>
+auto Factory<Return(Args...)>::operator()(Args... args) const noexcept -> Return
{
return _functor(std::forward<Args>(args)...);
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
auto Factory<Return(Args...)>::target_type() const noexcept -> const std::type_info &
{
return _functor.target_type();
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
template <typename Tp>
auto Factory<Return(Args...)>::target() noexcept -> Tp *
{
return static_cast<Tp *>(_functor.template target<Tp>());
}
-template <class Return, class... Args>
+template <typename Return, typename... Args>
template <typename Tp>
auto Factory<Return(Args...)>::target() const noexcept -> const Tp *
{
return _functor.template target<Tp>();
}
+template <typename Return, typename... Args>
+inline auto operator==(const Factory<Return(Args...)> &factory, std::nullptr_t) noexcept
+ -> bool
+{
+ return !factory;
+}
+
+template <typename Return, typename... Args>
+inline auto operator==(std::nullptr_t, const Factory<Return(Args...)> &factory) noexcept
+ -> bool
+{
+ return !factory;
+}
+
+template <typename Return, typename... Args>
+inline auto operator!=(const Factory<Return(Args...)> &factory, std::nullptr_t) noexcept
+ -> bool
+{
+ return static_cast<bool>(factory);
+}
+
+template <typename Return, typename... Args>
+inline auto operator!=(std::nullptr_t, const Factory<Return(Args...)> &factory) noexcept
+ -> bool
+{
+ return static_cast<bool>(factory);
+}
+
+} // namespace yacppdic
+
+template <typename Function>
+constexpr auto not_null(Function const & /*unused*/) -> bool
+{
+ return true;
+}
+
+template <typename Function>
+constexpr auto not_null(Function *function_ptr) -> bool
+{
+ return function_ptr;
+}
+
+template <typename Return, typename Class>
+constexpr auto not_null(Return Class::*method_ptr) -> bool
+{
+ return method_ptr;
+}
+
+template <typename Function>
+constexpr auto not_null(yacppdic::Factory<Function> const &factory) -> bool
+{
+ return !!factory;
}
diff --git a/include/yacppdic/detail/internal/compressed_pair-impl.hpp b/include/yacppdic/detail/internal/compressed_pair-impl.hpp
index 0e2a322..9a458e4 100644
--- a/include/yacppdic/detail/internal/compressed_pair-impl.hpp
+++ b/include/yacppdic/detail/internal/compressed_pair-impl.hpp
@@ -5,42 +5,94 @@
namespace yacppdic::internal
{
-template <class Value, int Idx>
-constexpr CompressedPairElement<Value, Idx>::CompressedPairElement(
- DefaultInitTag /*default_init_tag*/
-)
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+template <typename>
+requires std::default_initializable<ValueOne> && std::default_initializable<ValueTwo>
+constexpr CompressedPair<ValueOne, ValueTwo>::CompressedPair() noexcept
+ : BaseOne(ValueInitTag()), BaseTwo(ValueInitTag())
{
}
-template <class Value, int Idx>
-constexpr CompressedPairElement<Value, Idx>::CompressedPairElement(
- ValueInitTag /*value_init_tag*/
-)
- : _value()
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+template <typename FirstValue, typename SecondValue>
+constexpr CompressedPair<ValueOne, ValueTwo>::CompressedPair(
+ FirstValue &&first_value,
+ SecondValue &&second_value
+) noexcept
+ : BaseOne(std::forward<FirstValue>(first_value)),
+ BaseTwo(std::forward<SecondValue>(second_value))
{
}
-template <class Value, int Idx>
-template <class... Args, size_t... Indices>
-constexpr CompressedPairElement<Value, Idx>::CompressedPairElement(
- std::piecewise_construct_t /*tag_types*/,
- std::tuple<Args...> args,
- TupleIndices<Indices...> /*indices*/
-)
- : _value(std::forward<Args>(std::get<Indices>(args))...)
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+template <typename... ArgsOne, typename... ArgsTwo>
+constexpr CompressedPair<ValueOne, ValueTwo>::CompressedPair(
+ std::piecewise_construct_t piecewise_construct,
+ std::tuple<ArgsOne...> first_args,
+ std::tuple<ArgsTwo...> second_args
+) noexcept
+ : BaseOne(
+ piecewise_construct,
+ std::move(first_args),
+ typename MakeTupleIndices<sizeof...(ArgsOne)>::type()
+ ),
+ BaseTwo(
+ piecewise_construct,
+ std::move(second_args),
+ typename MakeTupleIndices<sizeof...(ArgsTwo)>::type()
+ )
{
}
-template <class Value, int Idx>
-auto CompressedPairElement<Value, Idx>::get() noexcept -> ValueReference
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+auto CompressedPair<ValueOne, ValueTwo>::first() noexcept ->
+ typename BaseOne::ValueReference
{
- return _value;
+ return static_cast<BaseOne &>(*this).get();
}
-template <class Value, int Idx>
-auto CompressedPairElement<Value, Idx>::get() const noexcept -> ConstValueReference
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+auto CompressedPair<ValueOne, ValueTwo>::first() const noexcept ->
+ typename BaseOne::ConstValueReference
{
- return _value;
+ return static_cast<BaseOne const &>(*this).get();
+}
+
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+auto CompressedPair<ValueOne, ValueTwo>::second() noexcept ->
+ typename BaseTwo::ValueReference
+{
+ return static_cast<BaseTwo &>(*this).get();
+}
+
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+auto CompressedPair<ValueOne, ValueTwo>::second() const noexcept ->
+ typename BaseTwo::ConstValueReference
+{
+ return static_cast<BaseTwo const &>(*this).get();
+}
+
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+constexpr auto CompressedPair<ValueOne, ValueTwo>::get_first_base(CompressedPair *pair
+) noexcept -> BaseOne *
+{
+ return static_cast<BaseOne *>(pair);
+}
+
+template <typename ValueOne, typename ValueTwo>
+requires NotSameAs<ValueOne, ValueTwo>
+constexpr auto CompressedPair<ValueOne, ValueTwo>::get_second_base(CompressedPair *pair
+) noexcept -> BaseTwo *
+{
+ return static_cast<BaseTwo *>(pair);
}
} // namespace yacppdic::internal
diff --git a/include/yacppdic/detail/internal/compressed_pair.hpp b/include/yacppdic/detail/internal/compressed_pair.hpp
index 3c832c5..7d98bbd 100644
--- a/include/yacppdic/detail/internal/compressed_pair.hpp
+++ b/include/yacppdic/detail/internal/compressed_pair.hpp
@@ -1,6 +1,7 @@
#pragma once
#include "yacppdic/detail/internal/misc_concepts.hpp"
+#include "yacppdic/detail/internal/tuple_indices.hpp"
#include <concepts>
#include <tuple>
@@ -11,104 +12,94 @@ namespace yacppdic::internal
{
// Tag used to default initialize one or both of the pair's elements.
-struct DefaultInitTag
+class DefaultInitTag
{
};
-struct ValueInitTag
+class ValueInitTag
{
};
-template <size_t...>
-struct TupleIndices
-{
-};
-
-template <class IdxType, IdxType... Values>
-struct IntegerSequence
-{
- template <template <class OIdxType, OIdxType...> class ToIndexSeq, class ToIndexType>
- using Convert = ToIndexSeq<ToIndexType, Values...>;
-
- template <size_t Sp>
- using ToTupleIndices = TupleIndices<(Values + Sp)...>;
-};
-
-template <size_t SizeOne, size_t SizeTwo>
-using MakeIndices =
- typename __make_integer_seq<IntegerSequence, size_t, SizeOne - SizeTwo>::
- template ToTupleIndices<SizeTwo>;
-
-template <size_t SizeOne, size_t SizeTwo = 0>
-requires(SizeTwo <= SizeOne) struct MakeTupleIndices
-{
- using type = MakeIndices<SizeOne, SizeTwo>;
-};
-
template <typename Value>
concept ValueCanBeEmptyBase = std::is_empty_v<Value> && !std::is_final_v<Value>;
-template <class Value, int Idx>
+template <typename Value, int Idx>
class CompressedPairElement
{
public:
using ValueReference = Value &;
using ConstValueReference = const Value &;
- constexpr explicit CompressedPairElement(DefaultInitTag default_init_tag);
+ constexpr explicit CompressedPairElement(DefaultInitTag /*default_init_tag*/
+ ) noexcept {};
- constexpr explicit CompressedPairElement(ValueInitTag value_init_tag);
+ constexpr explicit CompressedPairElement(ValueInitTag /*value_init_tag*/) noexcept
+ : _value()
+ {
+ }
- template <class ElementValue>
+ template <typename ElementValue>
requires std::same_as<CompressedPairElement, std::decay_t<ElementValue>>
// NOLINTNEXTLINE(bugprone-forwarding-reference-overload)
- constexpr explicit CompressedPairElement(ElementValue &&value)
+ constexpr explicit CompressedPairElement(ElementValue &&value) noexcept
: _value(std::forward<ElementValue>(value))
{
}
- template <class... Args, size_t... Indices>
+ template <typename... Args, std::size_t... Indices>
constexpr CompressedPairElement(
- std::piecewise_construct_t tag_type,
+ std::piecewise_construct_t /*tag_type*/,
std::tuple<Args...> args,
- TupleIndices<Indices...> tuple_indices
- );
+ TupleIndices<Indices...> /*tuple_indices*/
+ ) noexcept
+ : _value(std::forward<Args>(std::get<Indices>(args))...)
+ {
+ }
- auto get() noexcept -> ValueReference;
+ auto get() noexcept -> ValueReference
+ {
+ return _value;
+ }
- [[nodiscard]] auto get() const noexcept -> ConstValueReference;
+ [[nodiscard]] auto get() const noexcept -> ConstValueReference
+ {
+ return _value;
+ }
private:
Value _value;
};
-template <class Value, int Idx>
+template <typename Value, int Idx>
requires ValueCanBeEmptyBase<Value>
-struct CompressedPairElement<Value, Idx> : private Value
+class CompressedPairElement<Value, Idx> : private Value
{
+public:
using ValueReference = Value &;
using ConstValueReference = const Value &;
- constexpr CompressedPairElement() = default;
+ constexpr CompressedPairElement() noexcept = default;
- constexpr explicit CompressedPairElement(DefaultInitTag /*unused*/) {}
+ constexpr explicit CompressedPairElement(DefaultInitTag /*unused*/) noexcept {}
- constexpr explicit CompressedPairElement(ValueInitTag /*unused*/) : Value() {}
+ constexpr explicit CompressedPairElement(ValueInitTag /*unused*/) noexcept : Value()
+ {
+ }
- template <class ElementValue>
+ template <typename ElementValue>
requires std::same_as<CompressedPairElement, typename std::decay<ElementValue>::type>
// NOLINTNEXTLINE(bugprone-forwarding-reference-overload)
- constexpr explicit CompressedPairElement(ElementValue &&value)
+ constexpr explicit CompressedPairElement(ElementValue &&value) noexcept
: Value(std::forward<ElementValue>(value))
{
}
- template <class... Args, size_t... Indices>
+ template <typename... Args, std::size_t... Indices>
constexpr CompressedPairElement(
std::piecewise_construct_t /*unused*/,
std::tuple<Args...> args,
TupleIndices<Indices...> /*unused*/
- )
+ ) noexcept
: Value(std::forward<Args>(std::get<Indices>(args))...)
{
}
@@ -124,7 +115,7 @@ struct CompressedPairElement<Value, Idx> : private Value
}
};
-template <class ValueOne, class ValueTwo>
+template <typename ValueOne, typename ValueTwo>
requires NotSameAs<ValueOne, ValueTwo>
class CompressedPair : private CompressedPairElement<ValueOne, 0>,
private CompressedPairElement<ValueTwo, 1>
@@ -135,63 +126,32 @@ public:
template <typename>
requires std::default_initializable<ValueOne> && std::default_initializable<ValueTwo>
- constexpr CompressedPair() : BaseOne(ValueInitTag()), BaseTwo(ValueInitTag()) {}
+ constexpr CompressedPair() noexcept;
- template <class FirstValue, class SecondValue>
- constexpr CompressedPair(FirstValue &&first_value, SecondValue &&second_value)
- : BaseOne(std::forward<FirstValue>(first_value)),
- BaseTwo(std::forward<SecondValue>(second_value))
- {
- }
+ template <typename FirstValue, typename SecondValue>
+ constexpr CompressedPair(
+ FirstValue &&first_value,
+ SecondValue &&second_value
+ ) noexcept;
- template <class... ArgsOne, class... ArgsTwo>
+ template <typename... ArgsOne, typename... ArgsTwo>
constexpr CompressedPair(
std::piecewise_construct_t piecewise_construct,
std::tuple<ArgsOne...> first_args,
std::tuple<ArgsTwo...> second_args
- )
- : BaseOne(
- piecewise_construct,
- std::move(first_args),
- typename MakeTupleIndices<sizeof...(ArgsOne)>::type()
- ),
- BaseTwo(
- piecewise_construct,
- std::move(second_args),
- typename MakeTupleIndices<sizeof...(ArgsTwo)>::type()
- )
- {
- }
+ ) noexcept;
- auto first() noexcept -> typename BaseOne::ValueReference
- {
- return static_cast<BaseOne &>(*this).get();
- }
+ auto first() noexcept -> typename BaseOne::ValueReference;
- [[nodiscard]] auto first() const noexcept -> typename BaseOne::ConstValueReference
- {
- return static_cast<BaseOne const &>(*this).get();
- }
+ [[nodiscard]] auto first() const noexcept -> typename BaseOne::ConstValueReference;
- auto second() noexcept -> typename BaseTwo::ValueReference
- {
- return static_cast<BaseTwo &>(*this).get();
- }
+ auto second() noexcept -> typename BaseTwo::ValueReference;
- [[nodiscard]] auto second() const noexcept -> typename BaseTwo::ConstValueReference
- {
- return static_cast<BaseTwo const &>(*this).get();
- }
+ [[nodiscard]] auto second() const noexcept -> typename BaseTwo::ConstValueReference;
- constexpr static auto get_first_base(CompressedPair *pair) noexcept -> BaseOne *
- {
- return static_cast<BaseOne *>(pair);
- }
+ constexpr static auto get_first_base(CompressedPair *pair) noexcept -> BaseOne *;
- constexpr static auto get_second_base(CompressedPair *pair) noexcept -> BaseTwo *
- {
- return static_cast<BaseTwo *>(pair);
- }
+ constexpr static auto get_second_base(CompressedPair *pair) noexcept -> BaseTwo *;
};
} // namespace yacppdic::internal
diff --git a/include/yacppdic/detail/internal/factory_base.hpp b/include/yacppdic/detail/internal/factory_base.hpp
new file mode 100644
index 0000000..00c4e4f
--- /dev/null
+++ b/include/yacppdic/detail/internal/factory_base.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <functional>
+
+template <class Return>
+class MaybeDeriveFromUnaryFunction
+{
+};
+
+template <class Return, class Arg>
+class MaybeDeriveFromUnaryFunction<Return(Arg)> : public std::unary_function<Arg, Return>
+{
+};
+
+template <class Return>
+struct MaybeDeriveFromBinaryFunction
+{
+};
+
+template <class Return, class ArgOne, class ArgTwo>
+struct MaybeDeriveFromBinaryFunction<Return(ArgOne, ArgTwo)>
+ : public std::binary_function<ArgOne, ArgTwo, Return>
+{
+};
diff --git a/include/yacppdic/detail/internal/tuple_indices.hpp b/include/yacppdic/detail/internal/tuple_indices.hpp
new file mode 100644
index 0000000..3a367b6
--- /dev/null
+++ b/include/yacppdic/detail/internal/tuple_indices.hpp
@@ -0,0 +1,39 @@
+#pragma once
+
+#include <cstddef>
+
+namespace yacppdic::internal
+{
+
+template <std::size_t...>
+class TupleIndices
+{
+};
+
+template <typename IdxType, IdxType... Values>
+class IntegerSequence
+{
+public:
+ template <
+ template <typename OIdxType, OIdxType...>
+ typename ToIndexSeq,
+ typename ToIndexType>
+ using Convert = ToIndexSeq<ToIndexType, Values...>;
+
+ template <std::size_t Sp>
+ using ToTupleIndices = TupleIndices<(Values + Sp)...>;
+};
+
+template <std::size_t SizeOne, std::size_t SizeTwo>
+using MakeIndices =
+ typename __make_integer_seq<IntegerSequence, std::size_t, SizeOne - SizeTwo>::
+ template ToTupleIndices<SizeTwo>;
+
+template <std::size_t SizeOne, std::size_t SizeTwo = 0>
+requires(SizeTwo <= SizeOne) class MakeTupleIndices
+{
+public:
+ using type = MakeIndices<SizeOne, SizeTwo>;
+};
+
+} // namespace yacppdic::internal
diff --git a/include/yacppdic/factory.hpp b/include/yacppdic/factory.hpp
index 6de47d8..1eb2dc7 100644
--- a/include/yacppdic/factory.hpp
+++ b/include/yacppdic/factory.hpp
@@ -3,6 +3,7 @@
#include "yacppdic/detail/internal/interfaces/copyable_functor.hpp"
#include "yacppdic/detail/internal/alloc_destructor.hpp"
+#include "yacppdic/detail/internal/factory_base.hpp"
#include "yacppdic/detail/internal/functor/alloc_functor.hpp"
#include "yacppdic/detail/internal/functor/copyable_functor.hpp"
#include "yacppdic/detail/internal/functor/value_functor.hpp"
@@ -16,62 +17,9 @@
namespace yacppdic
{
-template <class>
+template <typename>
class Factory;
-}
-
-template <class Function>
-auto not_null(Function const & /*unused*/) -> bool
-{
- return true;
-}
-
-template <class Function>
-auto not_null(Function *function_ptr) -> bool
-{
- return function_ptr;
-}
-
-template <class Return, class Class>
-auto not_null(Return Class::*method_ptr) -> bool
-{
- return method_ptr;
-}
-
-template <class Function>
-auto not_null(yacppdic::Factory<Function> const &factory) -> bool
-{
- return !!factory;
-}
-
-namespace yacppdic
-{
-
-template <class Return>
-// NOLINTNEXTLINE(readability-identifier-naming)
-struct maybe_derive_from_unary_function
-{
-};
-
-template <class Return, class Arg>
-struct maybe_derive_from_unary_function<Return(Arg)>
- : public std::unary_function<Arg, Return>
-{
-};
-
-template <class Return>
-// NOLINTNEXTLINE(readability-identifier-naming)
-struct maybe_derive_from_binary_function
-{
-};
-
-template <class Return, class ArgOne, class ArgTwo>
-struct maybe_derive_from_binary_function<Return(ArgOne, ArgTwo)>
- : public std::binary_function<ArgOne, ArgTwo, Return>
-{
-};
-
template <typename Function, typename Return, typename... Args>
concept Callable =
!std::is_same_v<
@@ -80,9 +28,9 @@ concept Callable =
std::is_invocable_v<Function, Args...> &&
internal::IsCoreConvertibleV<std::invoke_result_t<Function, Args...>, Return>;
-template <class Return, class... Args>
-class Factory<Return(Args...)> : public maybe_derive_from_unary_function<Return(Args...)>,
- public maybe_derive_from_binary_function<Return(Args...)>
+template <typename Return, typename... Args>
+class Factory<Return(Args...)> : public MaybeDeriveFromUnaryFunction<Return(Args...)>,
+ public MaybeDeriveFromBinaryFunction<Return(Args...)>
{
public:
using Result = Return;
@@ -91,35 +39,36 @@ public:
explicit Factory(std::nullptr_t) noexcept {}
- Factory(const Factory &factory);
+ Factory(const Factory &factory) noexcept;
Factory(Factory &&factory) noexcept;
- template <class Function>
+ template <typename Function>
requires Callable<Function, Return, Args...>
// NOLINTNEXTLINE(google-explicit-constructor)
- Factory(Function function) : _functor(std::move(function))
- {
- }
+ Factory(Function function)
+ noexcept : _functor(std::move(function)) {}
- auto operator=(const Factory &factory) = delete;
+ auto operator=(const Factory &factory) noexcept = delete;
auto operator=(Factory &&factory) noexcept -> Factory &;
auto operator=(std::nullptr_t) noexcept -> Factory &;
- ~Factory();
+ ~Factory() noexcept = default;
explicit operator bool() const noexcept;
// deleted overloads close possible hole in the type system
- template <class RhsReturn, class... RhsArgs>
- auto operator==(const Factory<RhsReturn(RhsArgs...)> &) const -> bool = delete;
+ template <typename RhsReturn, typename... RhsArgs>
+ auto operator==(const Factory<RhsReturn(RhsArgs...)> &) const noexcept
+ -> bool = delete;
- template <class RhsReturn, class... RhsArgs>
- auto operator!=(const Factory<RhsReturn(RhsArgs...)> &) const -> bool = delete;
+ template <typename RhsReturn, typename... RhsArgs>
+ auto operator!=(const Factory<RhsReturn(RhsArgs...)> &) const noexcept
+ -> bool = delete;
- auto operator()(Args... args) const -> Return;
+ auto operator()(Args... args) const noexcept -> Return;
[[nodiscard]] auto target_type() const noexcept -> const std::type_info &;
@@ -135,42 +84,42 @@ private:
ValFunctor _functor;
};
-template <class Return, class... Args>
+template <typename Return, typename... Args>
Factory(Return (*)(Args...)) -> Factory<Return(Args...)>;
template <
- class Function,
- class Stripped = internal::StripSignatureT<decltype(&Function::operator())>>
+ typename Function,
+ typename Stripped = internal::StripSignatureT<decltype(&Function::operator())>>
Factory(Function) -> Factory<Stripped>;
-template <class Return, class... Args>
+template <typename Return, typename... Args>
inline auto operator==(const Factory<Return(Args...)> &factory, std::nullptr_t) noexcept
- -> bool
-{
- return !factory;
-}
+ -> bool;
-template <class Return, class... Args>
+template <typename Return, typename... Args>
inline auto operator==(std::nullptr_t, const Factory<Return(Args...)> &factory) noexcept
- -> bool
-{
- return !factory;
-}
+ -> bool;
-template <class Return, class... Args>
+template <typename Return, typename... Args>
inline auto operator!=(const Factory<Return(Args...)> &factory, std::nullptr_t) noexcept
- -> bool
-{
- return static_cast<bool>(factory);
-}
+ -> bool;
-template <class Return, class... Args>
+template <typename Return, typename... Args>
inline auto operator!=(std::nullptr_t, const Factory<Return(Args...)> &factory) noexcept
- -> bool
-{
- return static_cast<bool>(factory);
-}
+ -> bool;
} // namespace yacppdic
+template <typename Function>
+constexpr auto not_null(Function const & /*unused*/) -> bool;
+
+template <typename Function>
+constexpr auto not_null(Function *function_ptr) -> bool;
+
+template <typename Return, typename Class>
+constexpr auto not_null(Return Class::*method_ptr) -> bool;
+
+template <typename Function>
+constexpr auto not_null(yacppdic::Factory<Function> const &factory) -> bool;
+
#include "yacppdic/detail/factory-impl.hpp"