Re: do { quit; } else { }

On 2025-04-04 19:23:30 +0000, Thiago Adams said:

   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*/
   }

There should be a way to have multiple quits and way to selsct different
"else" blocks depending on which quit was executed.
But a new language feature is not necessary:
   int quit = 0;
   do
   {
      FILE f = fopen("file.txt", "r");
      if (f == NULL) { quit = 1; goto next; }
      /*success here*/
      for (int i =0; i < 10; i++){
          ...
          if (error) { quit = 2; goto next; }
      }
   }
   switch (quit) {
   {
      case 1: { /* no file */ } break:
      case 2: { /*some error*/ } break:
   }
--
Mikko