Printing Int i in If Portion of C++ Code

[Rainier9]

I need to print the int i right next to the main, but I need to do it while I am in the if portion of the following code:

int i = 7;
int main()
{
int i = 5;
cout << ::i;
if(1)
{
int i =9;
cout << ::i<<endl;
}

    return 0;
}

Right now it prints 7. I need it to print 5 without changing the variable name.

 

[I like Serena]

I need to print the int i right next to the main, but I need to do it while I am in the if portion of the following code:

int i = 7;
int main()
{
int i = 5;
cout << ::i;
if(1)
{
int i =9;
cout << ::i<<endl;
}

    return 0;
}

Right now it prints 7. I need it to print 5 without changing the variable name.

Hi Rainier9!

The "int i=9" hides the "int i=5" in a way that it is inaccessible using the name "i".
The language has been designed this way.

 

[PaulS1950]

You declare "int i = 9" as a global before main() and then try to name a new "int i" that is set to 5. I am surprised you didn't get at least a warning about it when you compiled.
The global int i will always be processed for any statement or function that calls i.
To fix it just declare i. like this: "int i"
then your program should be fine.
Paul

 

[Edgardo]

With the double colon in front of the variable i you are printing the global variable i. See Scope Resolution operator.

 

[LudusRex]

One possible solution to this problem is to use the scope resolution operator (::) to access the global variable i within the if statement. This will allow you to print the value of i from the main function, which is 5, without changing the variable name or affecting the value of i within the if statement. The updated code would look like this:

int i = 7;
int main()
{
int i = 5;
cout << ::i;
if(1)
{
cout << ::i<<endl;
}

return 0;
}

This will print 5 as desired. However, it is important to note that using the same variable name in different scopes can lead to confusion and errors, so it is not recommended to do so unless absolutely necessary. It is always best practice to use different variable names for different scopes to avoid any potential issues.