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Power-Programmierung
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1989
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22
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jumptest.pas
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Pascal/Delphi Source File
|
1989-11-10
|
725b
|
47 lines
JUMPTEST.PAS
PROGRAM JumpTest;
USES Jump;
VAR
JumpBuffer : JmpBuf;
RetValue : Integer;
X : Integer;
PROCEDURE A;
BEGIN
WriteLn('In Procedure A');
IF X = 1 THEN
LongJmp(JumpBuffer, 1)
{ Return to outer level with RetValue = 1 }
ELSE
BEGIN
X := X+1;
WriteLn('Returning from A');
END;
END;
PROCEDURE B;
BEGIN
WriteLn('In Procedure B');
A;
WriteLn('Returning from B');
END;
BEGIN
X := 0;
REPEAT
RetValue := SetJmp(JumpBuffer);
IF RetValue = 0 THEN
B
ELSE
WriteLn('Exit with RetValue = ', RetValue);
UNTIL RetValue <> 0;
END.