>Just encountered a bug in our software releated to the use of = when set exact is set to off.
>
>I Know I should be using == in those cases where comparing strings of different lenght, but just a small test made me wonder.
>
>Is there any reason I should not use == for any comparison in VFP? It seems to work for any datatype.
>
>Is there any gotcha using == as a standard?
>
>
>Walter,

Hi Walter:

- When you want to make sure you compare the exact match, then you should use "==" to make the comparison independent of the SET EXACT setting
- When you want to compare by the alternative logic of "begins with", then you use "=" and SET EXACT OFF

In regards of the velocity of comparison between "==" and "=", in my PC a 1000000 (millon) FOR loop shows me that "== is a little faster, but negligible in small loops:

*--
nSecs=SECONDS()
FOR I = 1 TO 1000000
   =("AA" = "AAA")
ENDFOR
? SECONDS()-nSecs

0.187

*--
nSecs=SECONDS()
FOR I = 1 TO 1000000
   =("AA" == "AAA")
ENDFOR
? SECONDS()-nSecs

0.140

*--

Regards.-