NAME
  ERROR Statement

SYNOPSIS
  ERROR expression%
      o expression%    The error code of a Basic or user-defined error; a
                       value in the range 1 through 255. To define your own
                       error, use a value that isn't listed in the Basic
                       Run-Time Error Codes  table.

DESCRIPTION
  Simulates an occurrence of a Basic error or a user-defined error.

  Example:
  'Illustrates ERDEV, ERDEV$, ERL, ERR, ERROR, ON ERROR, and RESUME.
     ON ERROR GOTO Handler
  10 CHDIR "a:\"                'Causes ERR 71 "Disk not ready"
                                'if no disk in Drive A.
  20 y% = 0
  30 x% = 5 / y%                'ERR 11 "Division by zero."
  40 PRINT "x% ="; x%
  50 ERROR 57                   'ERR 57 "Device I/O error."
  Handler:
    PRINT
    PRINT "Error "; ERR; " on line "; ERL
    SELECT CASE ERR
      CASE 71
        PRINT "Using device "; ERDEV$; " device error code = "; ERDEV
        RESUME NEXT
      CASE 11
        INPUT "What value do you want to divide by"; y%
        RESUME                  'Retry line 30 with new value of y%.
      CASE ELSE
        PRINT "Unexpected error, ending program."
        END
    END SELECT

SEE ALSO
  ERDEV ERR ERL ON ERROR RESUME