Click here to Skip to main content
Click here to Skip to main content
Go to top

Message with style

, 22 Feb 2002
Rate this:
Please Sign up or sign in to vote.
Add this simple #define to add compiler messages with location to your source code

VC's #pragma message

Ever tried to add the line number of a compile time message to your source code?

#pragma message(__FILE__ __LINE__ ": important part to be changed!!"

Won't work. Anyway, with some tricks you can do exactly this. The nice thing is that you will never ever again need to use "Find" to locate a particular message in your source code. Just double click the line with your message in the output window and VC's editor will jump to that location.

Here is what you need to add to your source code to make this work:

#define __STR2__(x) #x
#define __STR1__(x) __STR2__(x)
#define __LOC__ __FILE__ "("__STR1__(__LINE__)") : Warning Msg: "
#define __LOC2__ __FILE__ "("__STR1__(__LINE__)") : "

Now you can use the #pragma message to add the location of the message:

#pragma message(__LOC__ "important part to be changed")
#pragma message(__LOC2__ "error C9901: wish that error would exist")

The preceding pragmas will yield the following output from the compiler (preprocessor)

C:\code\pragma\test.cpp(33) : Warning Msg: important part to be changed
c:\code\pragma\test.cpp(34) : error C9901: wish that error would exist

Have fun with your new #pragma's...

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Share

About the Author

No Biography provided

Comments and Discussions

 
GeneralMy vote of 5 PinmemberThatsAlok1-Jan-12 23:26 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Mobile
Web01 | 2.8.140916.1 | Last Updated 23 Feb 2002
Article Copyright 2002 by Andreas S. Franci Gonçalves
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid