Global variable are available to all functions. Does there exist a mechanism by way of which it available to some and not to others.

Global variable are available to all functions. Does there exist a mec

1.	Global variable are available to all functions. Does there exist a mechanism by way of which it available to some and not to others.
Answer» The only way this can be achieved is to define the variable locally in main() instead of defining it globally and then passing it to the functions which need it.