Solved

create a function to encapsulate log4cpp stream

Posted on 2013-12-07
4
296 Views
Last Modified: 2013-12-09
I am using to log the statement under warn priority with the following statement

log4cpp::Category::getRoot() << log4cpp::Priority::WARN << "This is my first PVLogger fatal Message";

I wonder if it is possible to create a overload of << operator so I can write the above statement like below statement


StreamWarm  << "This is my first PVLogger fatal Message";

and StreamWarm incorporate log4cpp::Category::getRoot() << log4cpp::Priority::WARN
0
Comment
Question by:tommym121
  • 2
4 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 450 total points
ID: 39703335
You can do that in quite a simple way using a #define, e.g.

#define StreamWarn log4cpp::Category::getRoot() << log4cpp::Priority::WARN 

//...

StreamWarm  << "This is my first PVLogger fatal Message";

Open in new window

0
 
LVL 86

Assisted Solution

by:jkr
jkr earned 450 total points
ID: 39703343
BTW, you could implement the other message levels in a similar way:

#define StreamEmerg log4cpp::Category::getRoot() << log4cpp::Priority::EMERG 
#define StreamAlert log4cpp::Category::getRoot() << log4cpp::Priority::ALERT 
#define StreamError log4cpp::Category::getRoot() << log4cpp::Priority::ERROR 
#define StreamWarn log4cpp::Category::getRoot() << log4cpp::Priority::WARN 

Open in new window


or in a bit more general way

#define Stream(x) log4cpp::Category::getRoot() << log4cpp::Priority::X

// ...


Stream(WARN)  << "This is my first PVLogger fatal Message";

Stream(ALERT)  << "This is my first PVLogger fatal Message";

Open in new window

0
 
LVL 9

Assisted Solution

by:Subrat (C++ windows/Linux)
Subrat (C++ windows/Linux) earned 50 total points
ID: 39703881
A typo in jkr's comment
X should be x.

#define Stream(x) log4cpp::Category::getRoot() << log4cpp::Priority::x

The second option(bit more general...) is really a good approach.
0
 

Author Closing Comment

by:tommym121
ID: 39707535
Thanks
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Written by John Humphreys C++ Threading and the POSIX Library This article will cover the basic information that you need to know in order to make use of the POSIX threading library available for C and C++ on UNIX and most Linux systems.   [s…
This article will show you some of the more useful Standard Template Library (STL) algorithms through the use of working examples.  You will learn about how these algorithms fit into the STL architecture, how they work with STL containers, and why t…
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question