I have a class called
class object which have variable called density (_OMEGA is related to density : density = _OMEGA*x). I also have configuration file(a txt file) where I say _OMEGA = 1.4. Then I read that _OMEGA and other configuration variable from the txt file into a container in
class config which I will be using in my project during runtime.
Now I make lots of this
class object, since I make many of them I don't want to pass _OMEGA to each of these object during creation since I don't want to store this _OMEGA in each of these
class object. (I use _OMEGA just to vary the density variable in
static variable are idle for these case but I am not sure how to go ahead and use it.
- I know MACRO are idle for this but I don't want to use them in this particular case.
What I have done so far is :
In main.cpp after reading the config file I do
object::_OMEGA = config.get_val("OMEGA");
I get undefined reference to object::_OMEGA
I think why I get this error since I did not do the
object::_OMEGA = config.get_val("OMEGA"); in the cpp file. But if I do this in cpp file then I have to pass the
config reference to all
object class, which seems counter productive.
To avoid this error I did :
double object::_OMEGA = 0;
and in .h file of object I declared a variable static double _OMEGA
I now compiles but now sure if this is the right way to do thing.