Adds maybe_unused to several addon scripts

add_on/datetime/datetime.cpp

@@ -234,7 +234,7 @@ static void ConstructSet_Generic(asIScriptGeneric *gen)
 
 void RegisterScriptDateTime(asIScriptEngine *engine)
 {
-	int r = engine->RegisterObjectType("datetime", sizeof(CDateTime), asOBJ_VALUE | asOBJ_POD | asGetTypeTraits<CDateTime>()); assert(r >= 0);
+    [[maybe_unused]] int r = engine->RegisterObjectType("datetime", sizeof(CDateTime), asOBJ_VALUE | asOBJ_POD | asGetTypeTraits<CDateTime>()); assert(r >= 0);
 
 	if(strstr(asGetLibraryOptions(), "AS_MAX_PORTABILITY")==0)
 	{

add_on/scriptany/scriptany.cpp

@@ -141,7 +141,7 @@ void RegisterScriptAny(asIScriptEngine *engine)
 
 void RegisterScriptAny_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 	r = engine->RegisterObjectType("any", sizeof(CScriptAny), asOBJ_REF | asOBJ_GC); assert( r >= 0 );
 
 	// We'll use the generic interface for the constructor as we need the engine pointer
@@ -170,7 +170,7 @@ void RegisterScriptAny_Native(asIScriptEngine *engine)
 
 void RegisterScriptAny_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 	r = engine->RegisterObjectType("any", sizeof(CScriptAny), asOBJ_REF | asOBJ_GC); assert( r >= 0 );
 
 	// We'll use the generic interface for the constructor as we need the engine pointer

add_on/scriptdictionary/scriptdictionary.cpp

@@ -1068,7 +1068,7 @@ void RegisterScriptDictionary(asIScriptEngine *engine)
 
 void RegisterScriptDictionary_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// The array<string> type must be available
 	assert( engine->GetTypeInfoByDecl("array<string>") );
@@ -1147,7 +1147,7 @@ void RegisterScriptDictionary_Native(asIScriptEngine *engine)
 
 void RegisterScriptDictionary_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// Register the cleanup callback for the object type cache
 	engine->SetEngineUserDataCleanupCallback(SDictionaryCache::Cleanup, DICTIONARY_CACHE);

add_on/scriptfile/scriptfile.cpp

@@ -168,7 +168,7 @@ void ScriptFile_MovePos_Generic(asIScriptGeneric *gen)
 
 void RegisterScriptFile_Native(asIScriptEngine *engine)
 {
-    int r;
+    [[maybe_unused]] int r;
 
     r = engine->RegisterObjectType("file", 0, asOBJ_REF); assert( r >= 0 );
     r = engine->RegisterObjectBehaviour("file", asBEHAVE_FACTORY, "file @f()", asFUNCTION(ScriptFile_Factory), asCALL_CDECL); assert( r >= 0 );
@@ -201,7 +201,7 @@ void RegisterScriptFile_Native(asIScriptEngine *engine)
 
 void RegisterScriptFile_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	r = engine->RegisterObjectType("file", 0, asOBJ_REF); assert( r >= 0 );
 	r = engine->RegisterObjectBehaviour("file", asBEHAVE_FACTORY, "file @f()", asFUNCTION(ScriptFile_Factory_Generic), asCALL_GENERIC); assert( r >= 0 );

add_on/scriptgrid/scriptgrid.cpp

@@ -220,7 +220,7 @@ void RegisterScriptGrid(asIScriptEngine *engine)
 
 static void RegisterScriptGrid_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// Register the grid type as a template
 	r = engine->RegisterObjectType("grid<class T>", 0, asOBJ_REF | asOBJ_GC | asOBJ_TEMPLATE); assert( r >= 0 );

add_on/scripthandle/scripthandle.cpp

@@ -230,7 +230,7 @@ void CScriptHandle::ReleaseReferences(asIScriptEngine * /*inEngine*/)
 
 void RegisterScriptHandle_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 #if AS_CAN_USE_CPP11
 	// With C++11 it is possible to use asGetTypeTraits to automatically determine the flags that represent the C++ class
@@ -332,7 +332,7 @@ void CScriptHandle_ReleaseReferences_Generic(asIScriptGeneric *gen)
 
 void RegisterScriptHandle_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r = 0;
 
 	r = engine->RegisterObjectType("ref", sizeof(CScriptHandle), asOBJ_VALUE | asOBJ_ASHANDLE | asOBJ_GC | asOBJ_APP_CLASS_CDAK); assert( r >= 0 );
 	r = engine->RegisterObjectBehaviour("ref", asBEHAVE_CONSTRUCT, "void f()", asFUNCTION(CScriptHandle_Construct_Generic), asCALL_GENERIC); assert( r >= 0 );

add_on/scripthelper/scripthelper.cpp

@@ -976,7 +976,7 @@ string ScriptGetExceptionInfo()
 
 void RegisterExceptionRoutines(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// The string type must be available
 	assert(engine->GetTypeInfoByDecl("string"));

add_on/scriptmath/scriptmath.cpp

@@ -132,7 +132,7 @@ bool closeTo(double a, double b, double epsilon)
 
 void RegisterScriptMath_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// Conversion between floating point and IEEE bits representations
 	r = engine->RegisterGlobalFunction("float fpFromIEEE(uint)", asFUNCTIONPR(fpFromIEEE, (asUINT), float), asCALL_CDECL); assert( r >= 0 );
@@ -278,7 +278,7 @@ void atan2_generic(asIScriptGeneric *gen)
 #endif
 void RegisterScriptMath_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 #if AS_USE_FLOAT
 	// Trigonometric functions

add_on/weakref/weakref.cpp

@@ -220,7 +220,7 @@ bool CScriptWeakRef::Equals(void *ref) const
 
 void RegisterScriptWeakRef_Native(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// Register a type for non-const handles
 	r = engine->RegisterObjectType("weakref<class T>", sizeof(CScriptWeakRef), asOBJ_VALUE | asOBJ_ASHANDLE | asOBJ_TEMPLATE | asOBJ_APP_CLASS_DAK); assert( r >= 0 );
@@ -326,7 +326,7 @@ static void ScriptWeakRefTemplateCallback_Generic(asIScriptGeneric *gen)
 
 void RegisterScriptWeakRef_Generic(asIScriptEngine *engine)
 {
-	int r;
+    [[maybe_unused]] int r;
 
 	// Register a type for non-const handles
 	r = engine->RegisterObjectType("weakref<class T>", sizeof(CScriptWeakRef), asOBJ_VALUE | asOBJ_ASHANDLE | asOBJ_TEMPLATE | asOBJ_APP_CLASS_DAK); assert( r >= 0 );