WITH REPORT, TEXT_IO; USE REPORT, TEXT_IO;
PROCEDURE CE3904A IS
TYPE ENUM IS (THE, QUICK, BROWN, X);
E : ENUM;
PACKAGE EIO IS NEW ENUMERATION_IO(ENUM);
USE EIO;
F : FILE_TYPE;
FILE_OK : BOOLEAN := FALSE;
BEGIN
TEST ("CE3904A", "CHECK THAT THE LAST NONBLANK CHARACTER IN A " &
"FILE MAY BE READ BY 'GET' IN ENUMERATION_IO " &
"WITHOUT RAISING END_ERROR, AND THAT AFTER THE " &
"LAST CHARACTER OF THE FILE HAS BEEN READ, ANY " &
"ATTEMPT TO READ FURTHER CHARACTERS WILL RAISE " &
"END_ERROR");
BEGIN
CREATE(F, OUT_FILE, LEGAL_FILE_NAME);
FILE_OK := TRUE;
EXCEPTION
WHEN OTHERS =>
NOT_APPLICABLE("DATA FILE COULD NOT BE OPENED FOR " &
"WRITING");
END;
IF FILE_OK THEN
BEGIN
PUT(F, THE); NEW_LINE(F);
PUT(F, QUICK); NEW_LINE(F);
PUT(F, BROWN); NEW_LINE(F);
PUT(F, X); NEW_LINE(F);
CLOSE(F);
EXCEPTION
WHEN OTHERS =>
NOT_APPLICABLE("DATA FILE COULD NOT BE WRITTEN");
FILE_OK := FALSE;
END;
END IF;
IF FILE_OK THEN
BEGIN
OPEN(F, IN_FILE, LEGAL_FILE_NAME);
FOR I IN 0..3 LOOP
GET(F, E);
IF E /= ENUM'VAL(I) THEN
FAILED("INCORRECT VALUE READ -" &
INTEGER'IMAGE(I));
END IF;
END LOOP;
EXCEPTION
WHEN OTHERS =>
FAILED("UNEXPECTED EXCEPTION RAISED BEFORE END " &
"OF FILE");
FILE_OK := FALSE;
END;
END IF;
IF FILE_OK THEN
BEGIN
GET(F, E);
FAILED("NO EXCEPTION RAISED AFTER END OF FILE");
EXCEPTION
WHEN END_ERROR =>
NULL;
WHEN OTHERS =>
FAILED("INCORRECT EXCEPTION RAISED AFTER END OF " &
"FILE");
END;
BEGIN
DELETE(F);
EXCEPTION
WHEN OTHERS =>
COMMENT("DATA FILE COULD NOT BE DELETED");
END;
END IF;
RESULT;
END CE3904A;