OpenEuphoria

Re: Enum?

• Posted by gshingles <gshingles at ?mail.c?m> May 15, 2008
• 749 views

Derek Parnell wrote:
> }}}
<eucode>
> enum
>    FILE_NO,
>    LINE_NO,
>    FILE_PTR,
>    FILE_START_SYM,
>    OP_WARNING,
>    OP_TRACE,
>    OP_TYPE_CHECK,
>    OP_PROFILE_TIME,
>    OP_PROFILE_STATEMENT,
>    OP_DEFINES,
>    minFILE=^, -- first enumeration value
>    maxFILE=$  -- last enumeration value
> </eucode>
{{{


At first I didn't understand it, but after reading other proposals, I like this
idea the best.

I was wondering how you would determine the range of an enum from one of its
members
but if I understand what you are proposing, the ^ and $ symbols are valid from
the
start to the end of the enum statement.

This seems the simplest for a compile-time feature, however
does the entry 'minFILE' count against the value of maxFILE? :)

  ie from your example above:
      intent: minFILE = 1, maxFILE = 10
      actual: minFILE = 1, maxFILE = 11 (because of minFILE)
   
  Maybe you could just store these in constants with ^ and $ available
  until the next enum keyword is encountered? They would have to be better
  named though because of $ being used for slices. eg enum_start, enum_end,
  enum_count ?

But for the sake of not having to change 50 lines of code to insert a 'record'
in a sequence I'm all for this change regardless.

Gary