/*  useful_constants.h  (c) 1999-2001 Kari Laitinen

    28.05.1999  file created.
    08.10.1999  last modification

    This is a general-purpose includable file containing
    various textual constants to be used as status values
    for state variables. Textual constants should be used
    as values for state variables to make programs more
    readable.

    This file can be included in any program where state
    variables are used.
*/

#ifndef  USEFUL_CONSTANTS_H   // preventing multiple inclusions
#define  USEFUL_CONSTANTS_H


#define   SEARCH_NOT_READY                 1
#define   SEARCH_IS_READY                  2
#define   SEARCH_WAS_SUCCESSFUL            3
#define   SEARCH_NOT_SUCCESSFUL            4

#define   OPERATION_NOT_READY              5
#define   OPERATION_IS_READY               6
#define   OPERATION_WAS_INTERRUPTED        7
#define   OPERATION_IS_SUCCESFUL           9
#define   OPERATION_WAS_SUCCESSFUL        10

#define   SOME_KEY_WAS_PRESSED            21
#define   NO_KEYS_PRESSED                 22
#define   NO_KEYS_PRESSED_YET             23
#define   WRONG_KEY_WAS_PRESSED           24

#endif  // end of include guard