I need to know that does the #define directive in C++ declares global label? By global I mean visible in every file?
I'm using Visual Studio 2008, (guess if that matters)
cc-preprocessorvisual studio
I need to know that does the #define directive in C++ declares global label? By global I mean visible in every file?
I'm using Visual Studio 2008, (guess if that matters)
Best Answer
No, only in the current translation unit.
I.e. every file which has
#define
, or includes a file that has the#define
will see the definition.Edit, to respond to your comment: to get a define in every file, either put it in a header which gets included everywhere, or use some compiler option to get defines added.
e.g. for gcc one would do
Not sure how one specifies such includes in VC++, but I'm sure it's possible somehow.