Re: do { quit; } else { }

On 2025-04-04, Thiago Adams <thiago.adams@gmail.com> wrote:

   What do you think of this control block?
>
   do
   {
      FILE f = fopen("file.txt", "r");
>
      if (f == NULL) quit; /*goes to else part*/
>
      /*success here*/
      for (int i =0; i < 10; i++){
          ...
          if (error) quit;
      }
>
   }
   else
   {
      /*some error*/
   }

The else part might need access to some local variables
in the main part.

  do {
     char *name = calculate_path(PATH_PREFIX "/", name, ".txt");
     FILE *f = fopen(...)

     if (!f)
       quit;
     ...
  }
  else
  {
     printf("unable to open %s\n", name);
     ...
  }

If you make that work, you're creating scope wormholes between
disjoint curly braces, which is not allowed if youre name isn't
Bjarne Stroustrup.

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