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
Home » Tip Bank » C++
Language: C++
Expertise: Beginner
Jan 18, 1999

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Octal Numerals

A literal integer preceded by 0 (zero) is an octal numeral. When using octal numbers, you should beware of the following common pitfall:
 
const int warning = 10;
const int error = 100, 

switch (status) {
case 010   // OOPS, decimal value is 8, not 10
   handle_warning ();  // unreachable code!
   break;
case 100:
   handle_error ();
   break;
default:
   break;
}
In this example, the programmer intended to format the case-labels in a uniform, fixed size of thee digits. However, the compiler treated each zero-preceded label as an octal number rather than a decimal one.
Danny Kalev
 
Comment and Contribute

 

 

 

 

 


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

 

 

Sitemap
×
We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date