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Re: Function overloading

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On 7/20/2022 4:42 PM, Cholo Lennon wrote:
> I am learning Rust. One missing C++/Java feature is function 
> overloading. One of the explanations of this decision is that "function 
> overloading is an anti-pattern", because, among other things, "it leads 
> to less readable and understandable code".
> 
> This surprised me because I consider it very useful. I really hate 
> having to code multiple functions with different names and almost the 
> same functionality. I suffered this in Python (its solution based in 
> decorators is not the best), and also in Typescript (its solution based 
> in several prototypes for a single function is really awful).
> 
> What is your opinion about the function overloading as an 
> "anti-pattern"? is it?
> 
> Disclaimer: "Overloading" where only types differ (but the number of 
> parameters are the same) is possible in Rust using generic traits, 
> something like the following:
> 
> struct MyPrinter;
> 
> trait Printer<T> {
>      fn print(&self, value: T);
> }
> 
> impl Printer<i32> for MyPrinter  {
>      fn print(&self, value: i32) {
>          println!("Value: {}", value);
>      }
> }
> 
> impl Printer<&str> for MyPrinter {
>      fn print(&self, value: &str) {
>          println!("Value: {}", value);
>      }
> }
> 
> fn main() {
>      let foo = MyPrinter;
> 
>      foo.print(10);
>      foo.print("Hello");
> }
> 
> 
> -- 
> Cholo Lennon
> Bs.As.
> ARG

I use function overloading extensively in my C++ code code.   Works 
great and it is useful to have the same name with different arguments in 
many classes.  Here is one of my helper functions, tuple:

std::vector <int> tuple ();
std::vector <int> tuple (int int1);
std::vector <int> tuple (int int1, int int2);
std::vector <int> tuple (int int1, int int2, int int3);
std::vector <int> tuple (int int1, int int2, int int3, int int4);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int int5);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int 
int5, int int6);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int 
int5, int int6, int int7);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int 
int5, int int6, int int7, int int8);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int 
int5, int int6, int int7, int int8, int int9);
std::vector <int> tuple (int int1, int int2, int int3, int int4, int 
int5, int int6, int int7, int int8, int int9, int int10);

and so on to int60.  I also have tupleString and tupleTuple.

I also have the following methods in my DesValue class:

    virtual void setValue (int aValue);
    virtual void setValue (double aValue);
    virtual void setValue (char * aValue);
    virtual void setValue (std::string &aValue);
    virtual void setValue (std::vector <int> aValue);
    virtual void setValue (std::vector <double> aValue);
    virtual void setValue (std::vector <std::string> aValue);
    virtual void setString ( std::string aString );
    virtual void setString ( std::vector <std::string> aString );

Lynn

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Function overloading Cholo Lennon <chololennon@hotmail.com> - 2022-07-20 18:42 -0300
  Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-20 19:22 -0500
    Re: Function overloading Gawr Gura <gawrgura@mail.hololive.com> - 2022-07-20 22:44 -0700
      Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-21 16:17 -0500
    Re: Function overloading Cholo Lennon <chololennon@hotmail.com> - 2022-07-22 19:43 -0300
      Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-22 18:38 -0500
        Re: Function overloading Cholo Lennon <chololennon@hotmail.com> - 2022-07-24 01:24 -0300
          Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-25 16:01 -0500
            Re: Function overloading "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-07-26 00:05 +0200
              Re: Function overloading Cholo Lennon <chololennon@hotmail.com> - 2022-07-30 18:04 -0300
            Re: Function overloading Cholo Lennon <chololennon@hotmail.com> - 2022-07-30 18:03 -0300
              Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-08-02 23:11 -0500
    Re: Function overloading Bonita Montero <Bonita.Montero@gmail.com> - 2022-07-27 16:10 +0200
      Re: Function overloading Bonita Montero <Bonita.Montero@gmail.com> - 2022-07-27 16:11 +0200
      Re: Function overloading Bonita Montero <Bonita.Montero@gmail.com> - 2022-07-27 16:35 +0200
        Re: Function overloading Bonita Montero <Bonita.Montero@gmail.com> - 2022-07-28 05:51 +0200
      Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-27 14:54 -0500
        Re: Function overloading Bonita Montero <Bonita.Montero@gmail.com> - 2022-07-28 05:43 +0200
          Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-28 13:32 -0500
      Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-27 15:01 -0500
  Re: Function overloading Juha Nieminen <nospam@thanks.invalid> - 2022-07-21 05:45 +0000
  Re: Function overloading Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-21 09:04 +0300
    Re: Function overloading Juha Nieminen <nospam@thanks.invalid> - 2022-07-21 07:16 +0000
      Re: Function overloading Lynn McGuire <lynnmcguire5@gmail.com> - 2022-07-21 16:22 -0500

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