Correctly check for VectorType in _print_Function

pystencils/backends/cbackend.py

@@ -670,7 +670,7 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
                 else:
                     is_boolean = get_type_of_expression(arg) == create_type("bool")
                     is_integer = get_type_of_expression(arg) == create_type("int") or \
-                        (isinstance(arg, TypedSymbol) and arg.dtype.is_int())
+                        (isinstance(arg, TypedSymbol) and not isinstance(arg.dtype, VectorType) and arg.dtype.is_int())
                     instruction = 'makeVecConstBool' if is_boolean else \
                                   'makeVecConstInt' if is_integer else 'makeVecConst'
                     return self.instruction_set[instruction].format(self._print(arg), **self._kwargs)