Checking conditions [IF ... THEN ... ELSE] performance

[primer]

(09-14-2015 09:01 PM)komame Wrote:  I believe that all programming languages are working that way.

yes, indeed, and it's also very usefull to perform consistance checking,
for example

Code:

if( var!=0 AND a/var > b)

here the AND does not check condition a/var> b if var is null. here you avoid checking with inconsistant value (zero denominator)

I mean it's not only a question of performance.
Regards.