VMS Help
PASCAL, Statements, GOTO
*Conan The Librarian (sorry for the slow response - running on an old VAX)
|
|
The GOTO statement causes an unconditional branch to a statement
prefixed by a label.
Syntax:
GOTO label
The 'label' is an unsigned decimal integer or symbolic name that
represents a statement label.
The GOTO statement must be within the scope of the label
declaration. A GOTO statement that is outside a structured
statement cannot jump to a label within that structured
statement. A GOTO statement within a routine can branch to a
labeled statement in an enclosing block only if the labeled
statement appears in the block's outermost level.
FOR i := 1 TO 10 DO
BEGIN
IF Real_Array[i] = 0.0
THEN
BEGIN
Result := 0.0;
GOTO 10;
END;
Result := Result + 1.0/Real_Array[i];
END;
10: Invertsum := Result;
This example shows how to use a GOTO statement to exit from a
loop. The loop computes the sum of the inverses of the
components of the variable 'Real_Array'. If the value of one of
the components is 0.0, the sum is set to 0.0 and the GOTO
statement forces an exit from the loop.
[legal]
[privacy]
[GNU]
[policy]
[netiquette]
[sponsors]
[FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.