Scope resolution in cpp

 Scope Resolution Operator


This operator is used to access the Global variable but also has a local variable with a same variable name.

Syntax:-
::Variable_name;
 Return type<class_name>::method_name()
{
State_1;
State_2;
:
:
}
↣It used to define number of functions outside of the class.                          
Ex:-
#include<iostream.h>
int a=30;
int main()
{
int a=20;
cout<<"::a="<<::a<<"\n";
cout<<"a="<<a;
return 0;
}
Out put:-
::a=30
a=20

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