I would like to compile my cpp files into separate object files and then link them together, but I have global variables that I have to use from several files. If I try define them in all of the cpp''s, linker errors "already defined in ***.obj" or something like that. Is there any way to do this. I''m not sure if extern or static keyword could help.

// Defined in globals.hextern int Count;extern bool Done;...// Add Globals.h to each cpp file.#include "Globals.h"... 

One of the CPP files has to decalare the variable but that''s the jist of it.



Regards,
Jumpster


Semper Fi

Yes. The "extern" keyword is what you would need. Variables by default are local to the module they are declared in. Functions are global. To make a global variable you would declare it in every module like this:

extern int i;

You also must define it in one like this:

int i = 0;

Since variables are automatically local to every module you don''t need to use the ''static'' keyword, unless you declare it within a function and want it to have a longer life-time than the function. You can also make functions local to a module by declaring them static like this:

static void aFunction(int i);

And defining it like this:

void aFunction(int i) {
...
}

Well, I hope this clears things up.

Ok. Won''t be trying that again.