Difference between revisions of "End"
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For example: | For example: | ||
− | < | + | <syntaxhighlight> |
procedure Proc1; | procedure Proc1; | ||
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(..) | (..) | ||
end; | end; | ||
− | </ | + | </syntaxhighlight> |
The end statement is one of the exceptions to the rule that every statement must be followed by a semicolon. The statement immediately preceding an end statement does not require a semicolon. | The end statement is one of the exceptions to the rule that every statement must be followed by a semicolon. The statement immediately preceding an end statement does not require a semicolon. | ||
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It is also used to end a pascal source file, in which case it is followed by a period rather than a [[;|semicolon]] (in the example below, the last semicolon is optional): | It is also used to end a pascal source file, in which case it is followed by a period rather than a [[;|semicolon]] (in the example below, the last semicolon is optional): | ||
− | < | + | <syntaxhighlight> |
program Proc2; | program Proc2; | ||
var | var | ||
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end; | end; | ||
end. | end. | ||
− | </ | + | </syntaxhighlight> |
For a UNIT which contains no initialization, END is used to indicate the end of the unit: | For a UNIT which contains no initialization, END is used to indicate the end of the unit: | ||
− | < | + | <syntaxhighlight> |
unit detent; | unit detent; | ||
uses math; | uses math; | ||
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end. | end. | ||
− | </ | + | </syntaxhighlight> |
It also closes a [[Record|record]]: | It also closes a [[Record|record]]: | ||
− | < | + | <syntaxhighlight> |
Type | Type | ||
ExampleRecord = Record | ExampleRecord = Record | ||
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Average: Real { holds the average or mean of the values in the array } | Average: Real { holds the average or mean of the values in the array } | ||
End; | End; | ||
− | </ | + | </syntaxhighlight> |
{{Keywords}} | {{Keywords}} |
Revision as of 15:08, 24 March 2012
The end keyword closes a Block of instructions started with the begin or case keyword, ends the declaration of fields of a record, or closes a try .. finally or try .. except construct. It is also used to close a unit having no initialization code.
For example:
procedure Proc1;
var a,b: integer;
begin
(..)
end;
The end statement is one of the exceptions to the rule that every statement must be followed by a semicolon. The statement immediately preceding an end statement does not require a semicolon.
It is also used to end a pascal source file, in which case it is followed by a period rather than a semicolon (in the example below, the last semicolon is optional):
program Proc2;
var
SL: TStrings;
begin
SL := TStringlist.Create;
try
(..)
finally
SL.Free;
end;
end.
For a UNIT which contains no initialization, END is used to indicate the end of the unit:
unit detent;
uses math;
procedure delta(r:real);
implementation
procedure delta;
begin
...
end;
...
(* Note: No '''begin''' statement *)
end.
It also closes a record:
Type
ExampleRecord = Record
Values: array [1..200] of real;
NumValues: Integer; { holds the actual number of points in the array }
Average: Real { holds the average or mean of the values in the array }
End;
Keywords: begin — do — else — end — for — if — repeat — then — until — while