4 files changed, 9 insertions, 4 deletions
diff --git a/src/DI/container.hpp b/src/DI/container.hpp
index 2dd194f..93722b6 100644
--- a/src/DI/container.hpp
+++ b/src/DI/container.hpp
@@ -34,7 +34,7 @@ public:
 	template <class Interface>
 	BindingBuilder<Interface> bind();
 
-	template <class Interface, class = std::enable_if_t<std::is_abstract_v<Interface>>>
+	template <class Interface, class = std::enable_if_t<std::is_class_v<Interface>>>
 	std::shared_ptr<Interface> get() const;
 
 	template <typename Interface, typename = std::enable_if_t<is_func_v<Interface>>>
diff --git a/src/DI/function_wrapper.hpp b/src/DI/function_wrapper.hpp
index e4b6779..716668c 100644
--- a/src/DI/function_wrapper.hpp
+++ b/src/DI/function_wrapper.hpp
@@ -9,7 +9,7 @@ template <class Interface>
 class FunctionWrapper : public IWrapper<Interface>
 {
 public:
-	explicit FunctionWrapper(Interface func) : _func(func) {}
+	explicit FunctionWrapper(Interface func) noexcept;
 
 	[[nodiscard]] Interface get() const;
 
diff --git a/src/DI/function_wrapper.tpp b/src/DI/function_wrapper.tpp
index 4e09957..920c7f2 100644
--- a/src/DI/function_wrapper.tpp
+++ b/src/DI/function_wrapper.tpp
@@ -3,6 +3,11 @@
 #include "function_wrapper.hpp"
 
 template <class Interface>
+FunctionWrapper<Interface>::FunctionWrapper(Interface func) noexcept : _func(func)
+{
+}
+
+template <class Interface>
 Interface FunctionWrapper<Interface>::get() const
 {
 	return _func;
diff --git a/src/DI/type_traits.hpp b/src/DI/type_traits.hpp
index a852a4f..e4b6640 100644
--- a/src/DI/type_traits.hpp
+++ b/src/DI/type_traits.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include <functional>
+#include <type_traits>
 
 template <typename NotAFunc>
 struct is_func : public std::false_type // NOLINT(readability-identifier-naming)
@@ -8,7 +8,7 @@ struct is_func : public std::false_type // NOLINT(readability-identifier-naming)
 };
 
 template <typename Return, typename... Args>
-struct is_func<std::function<Return(Args...)>> : public std::true_type
+struct is_func<Return (*)(Args...)> : public std::true_type
 {
 };