Login | Register   
RSS Feed
Download our iPhone app
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: All
Sep 28, 1998



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

Namespace std May Not Be Modified

Generally, namespaces are open so it is perfectly legal to expand existing namespaces with additional declarations and definitions in several files. The only exception to the rule is namespace std. According to the C++ Standard, the result of modifying namespace std with additional declarations--let alone a removal of existing ones--is undefined and should be avoided. This restriction may seem arbitrary but it's just common sense; any attempt to tamper with namespace std undermines the very concept of a namespace dedicated exclusively to standard declarations.
Danny Kalev
Comment and Contribute






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



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