When we declare a name inside a function, that name has a local scope.
Its scope starts from the point of declaration till the end of the function block marked with }.
Example:
void myfunction() { int x = 123; // Here begins the x's scope } // and here it ends
Our variable x is declared inside a myfunction() body, and it has a local scope.
We say that name x is local to myfunction().
It exists (can be accessed) only inside the function's scope and nowhere else.