RE: GOTO statement and return results way

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Hello,

Thanks for your answer.

I kew that about nested ifs, but I don't like it because it adds complexity
to code.

I found the second method more elegant: do.. loop until true, I LIKE it.
But, risking to be too fussy, this "loop until true" trick seems just a bit
round-about 8-D

What do you think about the first question ? : to return if a procedure has
done well its work you 'd use a FUNCTION that returns the result code for
the operation, or a sub that, by means of a byref parameter returns the
result code ?

Wich is the paradigm for types of result codes: Strings, integers, custom
objects ?

Thanks again,


Roger Tranchez
MCTS
..NET 2005 and DB developer


"AMercer" wrote:

The second doubt is the GOTO: you know, it is a bad wound in code, but I
use it as a fast way to exit the sub.
How would you change all this to be more structured and aesthetic ?

When I have some functions to perform in sequence and I want to quit on the
first failure, I use one of two constructs - 'nested if' or 'do once'. I
prefer 'nested if' when I have few functions, I prefer 'do once' when I have
many.

Assuming the functions are x1, x2, and x3, 'nested if' is:

x1
If Success Then
x2
If Success Then
x3
If Success Then
' processing here for all success
End If
End If
End If

'Do Once':

Do
x1
If Fail Then Exit Do
x2
If Fail Then Exit Do
x3
If Fail Then Exit Do
' processing here for all success
Loop Until True

These constructs compile to code that is similar to yours with 'goto
endpoint', but the source code avoids goto's and label's. I prefer them over
goto's because I think they are easier to understand for a new person or for
you when you come back to the code after not looking at it for a few months.

.

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