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create a function to encapsulate log4cpp stream

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
tommym121
Asked:
tommym121
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3 Solutions
 
jkrCommented:
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

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jkrCommented:
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

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Subrat (C++ windows/Linux)Software EngineerCommented:
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.
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tommym121Author Commented:
Thanks
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