Kirk,
I see that others have posted and said that IIF is faster than IF...ENDIF.
I disagree!
I remember testing this in the past and I've always found IF...ENDIF to be faster. I just ran another test using your example and as I expected, I found IF...ENDIF to be faster.
Here's what I did:
#DEFINE MAXLOOPS 1000000
ldStartOn = DATE()
lnStart = SECONDS()
FOR x = 1 TO MAXLOOPS
ldStartOn = ldStartOn + IIF(VARTYPE(ldStartOn)=[D],1,86400)
ENDFOR
lnEnd = SECONDS()
MESSAGEBOX('IIF: ' + TRANSFORM(lnEnd-lnStart))
lnStart = SECONDS()
FOR x = 1 TO MAXLOOPS
IF VARTYPE(ldStartOn)=[D]
ldStartOn=ldStartOn+1
ELSE
ldStartOn=ldStartOn+86400
ENDIF
ENDFOR
lnEnd = SECONDS()
MESSAGEBOX('IF-ENDIF: ' + TRANSFORM(lnEnd-lnStart))
Guy
>I have a fairly large module that contains a search routine that consists of a series of Loops inside loops, inside loops. Within the loops I have serveral places where I do comparisons such as:
>
>
>IF VARTYPE(ldStartOn)=[D]
> ldStartOn=ldStartOn+1
>ELSE
> ldStartOn=ldStartOn+86400
>ENDIF
>
>
>I like the code format for readability of the IF/ELSE/ENDIF, but I'm wondering if I'm doing myself a disservice in terms of speed. This code could be replaced with a IIF(). Since this module I'm looking at runs potientially 100+ times before it exits, I thought I might want to find out which way was better in terms of speed.
>
>Thanks for any input.
>
>Kirk