Rice Lake iRite IDE - Manual (Page 24)

20 920i Programming Reference
'(' <arg-list> ')'
;
<arg-list>:
<optional-var-spec>
<variable-declaration>
| <arg-list> ';' <optional-var-spec>
<variable-declaration>
;
<optional-var-spec>:
/* NULL */
| var
;
PROCEDURE
IDENTIFIER optional-formal-args subprogram-completion
Figure 3-9. Procedure Declaration Syntax
Examples:
procedure PrintString (S : String);
begin
Writeln (1, "The String is => ",S);
end;
procedure ShowVersion;
begin
DisplayStatus ("Version 1.42");
end;
procedure Inc (var iVariable : Integer);
begin
iVariable := iVariable + 1;
end;
Function Declarations
A function declaration defines a subprogram that can be invoked by other subprograms. A function allows
parameters and requires a return type. A function must be declared before it can be referenced; recursion is not
supported. A function must return to the point of call using a return-with-value statement.
<function-declaration>:
function IDENTIFIER
<optional-formal-args> ':' <type> ';'
<decl-section>
begin
<stmt-list>
end ';'
;
FUNCTION
IDENTIFIER optional-formal-args
subprogram-completion
:
type
Figure 3-10. Function Declaration Syntax
Examples:
function Sum (A : integer; B : integer) : Integer;