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Ingy döt Net 2026-04-30 12:34:36 -04:00
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Task/Search-a-list/COBOL/search-a-list.cob Normal file
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*> This is written to COBOL85, which does not include exceptions.
IDENTIFICATION DIVISION.
PROGRAM-ID. Search-List.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 haystack-area.
78 Haystack-Size VALUE 10.
03 haystack-data.
05 FILLER PIC X(7) VALUE "Zig".
05 FILLER PIC X(7) VALUE "Zag".
05 FILLER PIC X(7) VALUE "Wally".
05 FILLER PIC X(7) VALUE "Ronald".
05 FILLER PIC X(7) VALUE "Bush".
05 FILLER PIC X(7) VALUE "Krusty".
05 FILLER PIC X(7) VALUE "Charlie".
05 FILLER PIC X(7) VALUE "Bush".
05 FILLER PIC X(7) VALUE "Boz".
05 FILLER PIC X(7) VALUE "Zag".
03 haystack-table REDEFINES haystack-data.
05 haystack PIC X(7) OCCURS Haystack-Size TIMES
INDEXED BY haystack-index.
01 needle PIC X(7).
PROCEDURE DIVISION.
main.
MOVE "Bush" TO needle
PERFORM find-needle
MOVE "Goofy" TO needle
PERFORM find-needle
* *> Extra task
MOVE "Bush" TO needle
PERFORM find-last-of-needle
GOBACK
.
find-needle.
SEARCH haystack
AT END
DISPLAY needle " not found."
WHEN haystack (haystack-index) = needle
DISPLAY "Found " needle " at " haystack-index "."
END-SEARCH
.
find-last-of-needle.
PERFORM VARYING haystack-index FROM Haystack-Size BY -1
UNTIL haystack-index = 0
OR haystack (haystack-index) = needle
END-PERFORM
IF haystack-index = 0
DISPLAY needle " not found."
ELSE
DISPLAY "Found last of " needle " at " haystack-index "."
END-IF
.