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: Beginner
Sep 15, 2000

WEBINAR:

On-Demand

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


Returning Aggregates from a Function

Both C and C++ allow you to return by value aggregates, e.g., structs and unions, from a function. However, the runtime overhead of returning large objects by value can be significant. This is why certain compilers issue a warning message when you return an aggregate from a function. For example:

 
Date current_date();

In most cases, you can avoid this inefficiency by passing a reference to the aggregate as an argument and write the result into that reference:

 
void current_date(Date & d); // improved form

This is more efficient than passing or returning large objects by value.

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