dcsimg
Login | Register   
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: Visual Basic
Expertise: Intermediate
Aug 20, 1997

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Tips on Using Boolean Logic

Programmer's of all skill levels often make errors when using Boolean logic. This statement might not evaluate the way you think it should:
 IF (SomeNumber AND 16) OR _ 
(SomeOtherNumber <> 0) THEN... 
The (SomeNumber AND 16) will never return a True (-1). It will return False (0) or <> False (some value). Always phrase your evaluations in a TRUE, FALSE, or <> ZERO (<> ZERO in this case means "has value" as opposed to NOT FALSE which means TRUE (-1)). Not only will your logical intention be better understood, you'll be less likely to experience a logic fault that would be a bear to track down.
MicroHelp Tech
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date