Practical use of extra braces in C

Question

I know {} are used to separate entities such as functions, classes and conditional branching, but what other use would they have here?

#import &         


        

Answer 1

you can introduce a new scope, which then allows you to introduce new variables.... which can be useful in C89. Not too normal though, but occasionally useful.

{
  int x =2 ;
  printf("%d", x);
  {
    int y = 7;
    printf("%d", y);
  }
}