In C++, the scope of a local variable is limited to the block in which it was declared, while the scope of a global variable is the entire program. To assign the global variable to a local variable with the same name, you can use the scope resolution operator (::) to differentiate between the two variables:
int x = 5; // global variable
int main() {
int x = 10; // local variable
// Assign global variable to local variable with same name
x = ::x;
// Now x will have the value 5
cout << x << endl;
return 0;
}
Note that this may lead to confusion and errors in your program, as it can make it difficult to track the values of variables. It is generally a good practice to avoid using the same name for global and local variables.
Asked: 2023-06-21 01:48:22 +0000
Seen: 13 times
Last updated: Jun 21 '23