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⟦620569cac⟧ TextFile

    Length: 1280 (0x500)
    Types: TextFile
    Names: »SUMBROEK.PAS«

Derivation

└─⟦08ea08c61⟧ Bits:30003924 PolyPascal programmer
    └─ ⟦this⟧ »SUMBROEK.PAS«

TextFile

        PROGRAM sumbroek;
        
          VAR
            t1, t2, n1, n2 : INTEGER;
          
          PROCEDURE forkort(VAR taeller, naevner : INTEGER);
          
            VAR
              taellerkopi, naevnerkopi, rest : INTEGER;
            
            BEGIN (* forkort *)
              taellerkopi := taeller;
              naevnerkopi := naevner;
              REPEAT
                rest := taellerkopi MOD naevnerkopi;
                taellerkopi := naevnerkopi;
                naevnerkopi := rest;
              UNTIL naevnerkopi = 0; (* taellerkopi er nu sfd *)
              taeller := taeller DIV taellerkopi;
              naevner := naevner DIV taellerkopi;
            END; (* forkort *)
            
          BEGIN (* sumbroek *)
            WRITE(CLRHOM, 'Tast første brøks tæller og nævner: ');
            READLN(t1, n1);
            WRITE('Tast anden brøks tæller og nævner: ');
            READLN(t2, n2);
            WRITE(t1, '/', n1, ' + ', t2, '/', n2, ' = ');
            t1 := t1 * n2 + t2 * n1; (* Obs: fare for overflow *)
            n1 := n1 * n2;
            forkort(t1, n1);
            WRITELN(t1, '/', n1);
          END. (* sumbroek *)
«eof»