Thread: global variable access, from c to c++

CornedBee, you are probably right about OS specific code
Mats, I also tried to avoid globals and tried using functions that would set/get the variables.

Now as provided in the links I can do this on Windows but don't know how to do this on Linux & Mac.

Well on Linux i did not have to use any kind of trickery to access the functions from a .so file.

I just made a .c file with two functions in it, into a Linux .so file.
Then in .cpp i used those functions with this guard around prototypes:

Code:

#ifdef __cplusplus
extern "C" {
#endif

char* toUpper(char* str);

#ifdef __cplusplus
}
#endif

Now, the good news is for my small test, my .so files and functions within are easily used by the .cpp program i made.

But the bad news is, that it does not work with my project, which also have a similar situation (although already mentioned in my posts above) which i summraize here again:
The .c files ends up in a .so/.dll or anything OS specific (similiar for a dynamic library). And the program contains all .cpp files. Now the program uses this .dll/.so file (links with it) and needs some functions from it. On Windows there is this dllexport trickery involved. But on Linux nothing needed to be done and i was able to create a .so and access the functions just fine. Is there something more to it (involving .so files) on Linux, which i may be missing?