what is mean by forward declaration and where we'll use it.
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Answer Posted / venkat
A forward declaration looks like the package definition
part but is inside the bode.
e.g.
procedure A is
begin
B;
end A;
procedure B is
begin
null;
end B;
will not work, because during call to B B is still unknown
(1 Step compiler) therefore we need a forward declaration:
procedure B;
procedure A is
begin
B;
end A;
procedure B is
begin
null;
end B;
now we can compile
| Is This Answer Correct ? | 30 Yes | 2 No |
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