End: what changed

Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.

Title: End

New		Line
1	+	The [[Keyword\|keyword]] `end` terminates an entity. It appears at several occasions:
2	+
3	+	- to mark the end of a module, i.e. a [[Program\|program]], [[Unit\|unit]] or [[Library\|library]]
4	+	- to conclude a [[Block\|block]] of statements or instructions respectively
5	+	- either started by [[Begin\|begin]], or
6	+	- started by [[Asm\|asm]]
7	+	- to wrap up some language constructs:
8	+	- most prominently [[If and Then\|if … then … end]], or
9	+	- [[Case\|case]] … [[Of\|of]] … `end`, but also
10	+	- [[Try, Except and Finally\|try … except … finally … end]]
11	+	- to finish off certain [[Type\|type]] declarations, such as [[Object\|object]], [[Record\|record]] and [[Class\|class]]
12	+	- in [[Extended Pascal\|extended Pascal]] `to end do …` starts the definition of the [[Finalization\|finalization part of a module]]
13	+
14	+	For example:
15	+
16	+	``` pascal
17	+	procedure proc0;
18	+	var
19	+	a, b: integer;
20	+	begin
21	+	…
22	+	end;
23	+	```
24	+
25	+	The `end` gloss is one of the exceptions to the rule that every statement must be followed by a [[Semicolon\|semicolon]]. The statement immediately preceding an `end` does not require a semicolon.
26	+
27	+	It is also used to end a Pascal module, in which case it is followed by a [[period]] rather than a semicolon (in the example below, the last semicolon is optional):
28	+
29	+	```delphi
30	+	program proc1;
31	+	var
32	+	SL: TStrings;
33	+	begin
34	+	SL := TStringlist.create;
35	+	try
36	+	…
37	+	finally
38	+	SL.free;
39	+	end;
40	+	end.
41	+	```
42	+
43	+	`end` is used to indicate the end of the unit:
44	+
45	+	``` pascal
46	+	unit detent;
47	+	uses math;
48	+
49	+	procedure delta(r:real);
50	+
51	+	implementation
52	+
53	+	procedure delta;
54	+	begin
55	+
56	+	...
57	+
58	+	end;
59	+
60	+	...
61	+	(* Note: No corresponding '''begin''' statement *)
62	+
63	+	end.
64	+	```
65	+
66	+	It also closes a [[Record\|record]]:
67	+
68	+	``` pascal
69	+	Type
70	+	ExampleRecord = Record
71	+	Values: array [1..200] of real;
72	+	NumValues: Integer; { holds the actual number of points in the array }
73	+	Average: Real { holds the average or mean of the values in the array }
74	+	End;
75	+	```
76	+
77	+	---
78	+	From the Free Pascal wiki, page "End", as it stood on 2020-06-24 after a change by Kai Burghardt, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).

Back to history