improve dynamic loading example

Author: jll63

doc/modules/ROOT/examples/shared_libs/CMakeLists.txt

@@ -9,7 +9,7 @@ message(STATUS "Building dynamic_shared loading examples")
 # static linking
 
 add_library(shared SHARED overriders.cpp tiger.cpp)
-target_link_libraries(shared Boost::openmethod Boost::dll)
+target_link_libraries(shared Boost::openmethod)
 set_target_properties(shared PROPERTIES ENABLE_EXPORTS ON)
 
 add_executable(static static_main.cpp)

doc/modules/ROOT/examples/shared_libs/dynamic_main.cpp

@@ -73,7 +73,7 @@ auto main() -> int {
 
         auto make_tiger = lib.get<Animal*()>("make_tiger");
         std::unique_ptr<Animal> hobbes{make_tiger()};
-        std::cout << "Gracie meets Tiger -> " << meet(*gracie, *hobbes) << "\n";
+        std::cout << "cow meets tiger -> " << meet(*gracie, *hobbes) << "\n";
     }
 
     std::cout << "\nAfter unloading the shared library.\n";

doc/modules/ROOT/examples/shared_libs/indirect_main.cpp

@@ -65,7 +65,7 @@ auto main() -> int {
     {
         auto make_tiger = lib.get<Animal*()>("make_tiger");
         std::unique_ptr<Animal> hobbes{make_tiger()};
-        std::cout << "Gracie meets Tiger -> " << meet(*gracie, *hobbes) << "\n";
+        std::cout << "cow meets tiger -> " << meet(*gracie, *hobbes) << "\n";
     }
 
     std::cout << "\nAfter unloading the shared library.\n";

include/boost/openmethod/core.hpp

@@ -2235,7 +2235,7 @@ class method<Id, ReturnType(Parameters...), Registry>
 
     type_id vp_type_ids[Arity];
 
-    static std::size_t slots_strides[2 * Arity - 1];
+    std::size_t slots_strides[2 * Arity - 1];
     // Slots followed by strides. No stride for first virtual argument.
     // For 1-method: the offset of the method in the method table, which
     // contains a pointer to a function.
@@ -2384,11 +2384,6 @@ void method<Id, ReturnType(Parameters...), Registry>::resolve_type_ids() {
             VirtualParameters>>::fn(this->vp_type_ids);
 }
 
-template<
-    typename Id, typename... Parameters, typename ReturnType, class Registry>
-std::size_t method<
-    Id, ReturnType(Parameters...), Registry>::slots_strides[2 * Arity - 1];
-
 template<
     typename Id, typename... Parameters, typename ReturnType, class Registry>
 method<Id, ReturnType(Parameters...), Registry>::~method() {