RE: DOU/DOW for READ Loops (My final word)

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

It's the switch statement; to stop execution with the true case you need a
break.  Nested else ifs work fine, but you do need to match up the curly
braces pretty carefully when you try to figure out what the code's doing.  

I can't count the number of examples in both text books and after market
books on C that I've read that made promiscuous use of both break and
continue.

Like I said, nobody's perfect.  I was just trying to point out that RPG had
at least one elegant feature. <g>  Also, this isn't a "silly topic."  I'd
never post anything related to a "silly topic."  <VBG>

> -----Original Message-----
> From: Scott Klement [mailto:klemscot@klements.com]
> Sent: Friday, April 21, 2000 1:59 PM
> To: 'RPG400-L@midrange.com'
> Subject: RE: DOU/DOW for READ Loops (My final word)
> 
> 
> 
> On Thu, 20 Apr 2000, Joel Fritz wrote:
> 
> > You and Simon both pointed out the C read loop.  I agree it 
> makes for very
> > elegant file reading.  C is also the language that _needs_ 
> the equivalents
> > of iter and leave (continue and break) to do stuff that the 
> RPG SELECT
> > statement handles much more neatly.  
> > 
> > I dunno, nobody's perfect.
> 
> 
> 
> (Not that I really want to get involved in this silly topic, but...)
> 
> Why does C "need" the equiv of iter/leave?   You can do the 
> same things
> in C that you can do in RPG...   I dont understand your statement...
> 
> This construct in C does exactly the same thing as a SELECT in RPG:
> 
> if (condition1) {
> }
> else if (condition1) {
> }
> else if (condition3) {
> }
> else {
> }
> 
> (RPG Equiv:)
> 
> SELECT
> WHEN (condition1)
> WHEN (condition2)
> WHEN (condition3)
> OTHER
> ENDSL
> 
> 
> And if conditions are all comparisons of the same variable, 
> you can use
> switch as well, like:
> 
> switch (variable) {
>     case 1:
>     case 2:
>     case 3:
>     default:
> }
> 
> 
> Why does either method lend itself more to ITER/LEAVE (or 
> continue/break)
> than the other?!
> 
> 
> 
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