dcsimg
Login | Register   
LinkedIn
Google+
Twitter
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: C++
Expertise: Intermediate
Nov 13, 1998

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


STL Iterators are not Necessarily Pointers

Most implementations of STL (Standard Template Library) use pointers as the underlying representation of iterators. However, an iterator doesn't have to be a pointer, and there's a good reason for that. Consider a huge vector of scanned images stored on a 6-Gigabyte disk. A built-in pointer on most machines has only 32 bits, which wouldn't be large enough to iterate through such a large vector. Instead, the implementer can use a 64-bit integer as the underlying iterator in this case.
Danny Kalev
 
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