48 lines
1.9 KiB
OpenEdge ABL
48 lines
1.9 KiB
OpenEdge ABL
74700 #include "rundecs.h"
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74710 (* COPYRIGHT 1983 C.H.LINDSEY, UNIVERSITY OF MANCHESTER *)
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74720 (**)
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74730 (**)
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74740 FUNCTION CRSTRING(LENGTH: OFFSETRANGE): OBJECTP; EXTERN ;
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74750 FUNCTION SUBFIXED(SIGN, BEFORE, POINT, AFTER : INTEGER; VAR EXP: INTEGER; EXPNEEDED: BOOLEAN;
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74760 X: REALTEGER; R: BOOLEAN; VAR S: OBJECTP; START: INTEGER): BOOLEAN; EXTERN;
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74770 PROCEDURE ERRORFILL(VAR S: OBJECTP; LENGTH: INTEGER); EXTERN;
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74780 (**)
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74790 (**)
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74800 FUNCTION FLOAT(XMODE: INTEGER; VAL: REALTEGER; WIDTH, AFTER, EXP: INTEGER): OBJECTP;
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74810 VAR E: REALTEGER;
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74820 S: OBJECTP;
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74830 ABSWIDTH, BEFORE, POINT, ABSEXP, EXPSIGN: INTEGER;
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74840 OK, OK1: BOOLEAN;
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74850 BEGIN
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74860 ABSWIDTH := ABS(WIDTH)+ORD(WIDTH=0);
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74870 ABSEXP := ABS(EXP)+ORD(EXP=0);
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74880 S := CRSTRING(ABSWIDTH);
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74890 REPEAT
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74900 POINT := ORD(AFTER>0);
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74910 BEFORE := ABSWIDTH-1-POINT-AFTER-1-ABSEXP;
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74920 IF BEFORE<0 THEN AFTER := -1; (*WILL CAUSE SUBFIXED TO FAIL*)
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74930 OK := SUBFIXED(ORD((WIDTH>0) OR (VAL.INT<0))-ORD((WIDTH<0) AND (VAL.INT>=0)),
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74940 BEFORE, POINT, AFTER, E.INT, TRUE, VAL, XMODE=2, S, 1)
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74950 AND (BEFORE+AFTER>0);
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74960 S^.CHARVEC[1+BEFORE+POINT+AFTER+1] := 'E';
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74970 EXPSIGN := ORD((EXP>0) OR (E.INT<0));
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74980 OK1 := SUBFIXED(EXPSIGN, ABSEXP-EXPSIGN, 0, 0, E.INT, FALSE, E, FALSE,
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74990 S, 1+BEFORE+POINT+AFTER+2);
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75000 AFTER := AFTER-ORD(AFTER<>0); ABSEXP := ABSEXP+1
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75010 UNTIL NOT OK OR OK1;
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75020 IF NOT OK THEN ERRORFILL(S, ABSWIDTH);
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75030 FLOAT := S;
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75040 END;
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75050 (**)
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75060 (**)
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75070 (*+01() (*$X4*) ()+01*)
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75080 (**)
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75090 (**)
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75100 (*-02()
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75110 BEGIN (*OF A68*)
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75120 END; (*OF A68*)
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75130 ()-02*)
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75140 (*+01()
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75150 BEGIN (*OF MAIN PROGRAM*)
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75160 END (* OF EVERYTHING *).
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75170 ()+01*)
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