Question

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‘break’ statement when using curly braces in switch-case

While merging a package I came across this statement

switch (a)
{

case 1:
    {
        string str = "a is 1";
        cout << str << endl;
    }
    break;
case 2: ...
...

}

my question is does it matter if I place the break inside or outside the scope in case 1?
here they place outside. I tried this and didn’t see any difference.
It makes sense to me that there is no difference but the guy with the PHD from my team said he remembers that there might be a difference but he can’t remember what it is..

Answer 1

There is no difference whether you put the break inside or outside the scope.