HelenOS sources

error_type_t      544 uspace/app/calculator/calculator.c     error_type_t *error_type)
error_type_t      593 uspace/app/calculator/calculator.c static void display_error(error_type_t error_type)
error_type_t      655 uspace/app/calculator/calculator.c 	error_type_t error_type = ERROR_SYNTAX;