I am not sure if I am using the exact terminology , But I'll try to be as descriptive as possible to clear out any confusion .
Suppose I have an std::function variable
std::function<void(int)> callback ;
Due to some reasons beyond my scope , I cannot change the function prototype. I receive the std::function variable at some point in my code and I have to call it.Something like this :
int a = 10 // just an example value
callback(a);
Now I have another variable . Let's name it id .
int id = rand(); // Let us assume that rand here generates a random variable
int a = 10 // just an example value
callback(a);
I want id to be accessible inside the callback i.e I am looking for some form of closure . Is there any way to do it without making the id
static/global.
Aucun commentaire:
Enregistrer un commentaire