Identifiers containing double underscore are reserved according to the C++ standard

Rename __* to _gde_*

https://timsong-cpp.github.io/cppwp/n3337/global.names

https://en.cppreference.com/w/cpp/language/identifiers

Identifiers appearing as a token or preprocessing token (i.e., not in user-defined-string-literal like operator ""id) (since C++11) of one of the following forms are reserved:
 - identifiers with a double underscore anywhere;
 - identifiers that begin with an underscore followed by an uppercase letter;
 - in the global namespace, identifiers that begin with an underscore.

3 files changed, 15 insertions, 15 deletions

diff --git a/include/godot_cpp/core/class_db.hpp b/include/godot_cpp/core/class_db.hpp
index 46fbd42..425d5a2 100644
--- a/include/godot_cpp/core/class_db.hpp
+++ b/include/godot_cpp/core/class_db.hpp
@@ -150,22 +150,22 @@ public:
 	godot::ClassDB::bind_integer_constant(get_class_static(), "", #m_constant, m_constant);
 
 #define BIND_ENUM_CONSTANT(m_constant) \
-	godot::ClassDB::bind_integer_constant(get_class_static(), godot::__constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant);
+	godot::ClassDB::bind_integer_constant(get_class_static(), godot::_gde_constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant);
 
 #define BIND_BITFIELD_FLAG(m_constant) \
-	godot::ClassDB::bind_integer_constant(get_class_static(), godot::__constant_get_bitfield_name(m_constant, #m_constant), #m_constant, m_constant, true);
-
-#define BIND_VIRTUAL_METHOD(m_class, m_method)                                                                                                  \
-	{                                                                                                                                           \
-		auto ___call##m_method = [](GDExtensionObjectPtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr p_ret) -> void { \
-			call_with_ptr_args(reinterpret_cast<m_class *>(p_instance), &m_class::m_method, p_args, p_ret);                                     \
-		};                                                                                                                                      \
-		godot::ClassDB::bind_virtual_method(m_class::get_class_static(), #m_method, ___call##m_method);                                         \
+	godot::ClassDB::bind_integer_constant(get_class_static(), godot::_gde_constant_get_bitfield_name(m_constant, #m_constant), #m_constant, m_constant, true);
+
+#define BIND_VIRTUAL_METHOD(m_class, m_method)                                                                                                \
+	{                                                                                                                                         \
+		auto _call##m_method = [](GDExtensionObjectPtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr p_ret) -> void { \
+			call_with_ptr_args(reinterpret_cast<m_class *>(p_instance), &m_class::m_method, p_args, p_ret);                                   \
+		};                                                                                                                                    \
+		godot::ClassDB::bind_virtual_method(m_class::get_class_static(), #m_method, _call##m_method);                                         \
 	}
 
 template <class T, bool is_abstract>
 void ClassDB::_register_class(bool p_virtual) {
-	instance_binding_callbacks[T::get_class_static()] = &T::___binding_callbacks;
+	instance_binding_callbacks[T::get_class_static()] = &T::_gde_binding_callbacks;
 
 	// Register this class within our plugin
 	ClassInfo cl;
@@ -221,7 +221,7 @@ void ClassDB::register_abstract_class() {
 
 template <class T>
 void ClassDB::register_engine_class() {
-	instance_binding_callbacks[T::get_class_static()] = &T::___binding_callbacks;
+	instance_binding_callbacks[T::get_class_static()] = &T::_gde_binding_callbacks;
 }
 
 template <class N, class M, typename... VarArgs>
diff --git a/include/godot_cpp/core/method_bind.hpp b/include/godot_cpp/core/method_bind.hpp
index ae2142a..37ae731 100644
--- a/include/godot_cpp/core/method_bind.hpp
+++ b/include/godot_cpp/core/method_bind.hpp
@@ -268,8 +268,8 @@ MethodBind *create_vararg_method_bind(R (T::*p_method)(const Variant **, GDExten
 }
 
 #ifndef TYPED_METHOD_BIND
-class ___UnexistingClass;
-#define MB_T ___UnexistingClass
+class _gde_UnexistingClass;
+#define MB_T _gde_UnexistingClass
 #else
 #define MB_T T
 #endif
diff --git a/include/godot_cpp/core/type_info.hpp b/include/godot_cpp/core/type_info.hpp
index 039cb2e..f0edda5 100644
--- a/include/godot_cpp/core/type_info.hpp
+++ b/include/godot_cpp/core/type_info.hpp
@@ -241,7 +241,7 @@ inline String enum_qualified_name_to_class_info_name(const String &p_qualified_n
 	TEMPL_MAKE_ENUM_TYPE_INFO(m_enum, const m_enum &)
 
 template <typename T>
-inline StringName __constant_get_enum_name(T param, StringName p_constant) {
+inline StringName _gde_constant_get_enum_name(T param, StringName p_constant) {
 	if (GetTypeInfo<T>::VARIANT_TYPE == Variant::NIL) {
 		ERR_PRINT(("Missing VARIANT_ENUM_CAST for constant's enum: " + String(p_constant)).utf8().get_data());
 	}
@@ -288,7 +288,7 @@ public:
 	TEMPL_MAKE_BITFIELD_TYPE_INFO(m_enum, const m_enum &)
 
 template <typename T>
-inline StringName __constant_get_bitfield_name(T param, StringName p_constant) {
+inline StringName _gde_constant_get_bitfield_name(T param, StringName p_constant) {
 	if (GetTypeInfo<T>::VARIANT_TYPE == Variant::NIL) {
 		ERR_PRINT(("Missing VARIANT_ENUM_CAST for constant's bitfield: " + String(p_constant)).utf8().get_data());
 	}