4.3BSD - /usr/src/new/xns/xnslib/except/test.c

   1: /*
   2:  * a test program for exception handling - cc test.c -lexcept
   3:  */
   4: 
   5: #include <stdio.h>
   6: #include <except.h>
   7: 
   8: #define EX_EOF  -2
   9: #define EX_ZERO -3
  10: 
  11: main()
  12: {
  13:     ExceptMode = EX_MODE_REPORT | EX_MODE_ABORT;
  14: 
  15:     printf("With handler\n");
  16:     DURING
  17:         foo(3);
  18:     HANDLER
  19:         switch (Exception.Code) {
  20:             case EX_EOF:
  21:             printf("End of input file\n");
  22:             break;
  23: 
  24:         default:
  25:             RERAISE;
  26:             break;
  27:         }
  28:     END_HANDLER;
  29: 
  30:     printf("Without handler\n");
  31:     foo(3);
  32: }
  33: 
  34: foo(i)
  35: int i;
  36: {
  37:     char line[64];
  38:     int x;
  39: 
  40:     while (--i) {
  41:         printf("Enter integer> ");
  42:         clearerr(stdin);
  43:         if (gets(line) == NULL) raise(EX_EOF, "End of File");
  44:         sscanf(line,"%d", &x);
  45:         DURING
  46:             bar(x);
  47:         HANDLER
  48:             switch (Exception.Code) {
  49:                 case EX_ZERO:
  50:                 printf("%s\n", Exception.Message);
  51:             E_RETURN_VOID;
  52:             default: RERAISE; break;
  53:             }
  54:         END_HANDLER
  55:     }
  56: }
  57: 
  58: bar(x)
  59: int x;
  60: {
  61:     if (x == 0) raise(EX_ZERO, "Division by Zero");
  62: 
  63:     printf("1/%d = %f\n",x,1.0/(x+0.0));
  64: }

Defined functions

Defined macros