Function Overloading in VHDL

Multiple functions with same name but different argument lists and return type. Examples of function overloading are

(type.1) : Same function name and return type but changing arguments list.

 function ABC(arg1:integer) return integer is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1:integer;arg2:string) return integer is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1: integer;arg2: string;arg3: real) return integer is  
   begin  
      --- .... ---  
 end ABC;  

(type.2) : Same function name and arguments list but different return types.

 function ABC(arg1:integer) return integer is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1:integer) return std_logic_vector is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1: integer) return real is  
   begin  
      --- .... ---  
 end ABC;  

(type.3) : Same function name but changing arguments list and return type.

 function ABC(arg1:integer) return integer is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1:integer;arg2:string) return std_logic_vector is  
   begin  
      --- .... ---  
 end ABC;  
 function ABC(arg1: integer;arg2: string;arg3: real) return real is  
   begin  
      --- .... ---  
 end ABC;