OpenEuphoria

Does Euphoria have a null statement?

• Posted by freeplay at mailandnews.com May 04, 2001
• 434 views

All,

Does Euphoria have a null statement?  That is a statement which just does 
nothing but is occasionally useful as a place holder during program 
development?

As an example in C I might write something like:

    if (mode == MODE_TEXT)
      ;
    else if (mode == MODE_HTML)
      process_html();
    else
      invalid_mode(mode);

The ; on it's own is C's null statement (well the ; is actually a statement 
terminator and there is no statement but lets not get bogged down in this 
stuff   Later while writing the code I might get round to updating it to:

    if (mode == MODE_TEXT)
      process_text;
    else if (mode == MODE_HTML)
      process_html();
    else
      invalid_mode(mode);

In Euphoria I could write a procdure called donothing as follows:

  procedure donothing()

  end procedure

and then convert the above C code to the following Euphoria code:

  if MODE = MODE_TEXT
    donothing()
  elsif MODE = MODE_HTML
    process_html()
  else
    invalid_mode(mode)
  end if

but this seems a little "odd".  Is there something I could use instead of the:

  donothing()

I wonder - any ideas?

Regards,

FP.


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