On Sep 2, 2006, at 1:53 PM, Arnaud Nicolet wrote:
Le 1 sept. 06 à 21:49 Soir, Brendan Murphy a écrit:
OK, this if for the newbies to REALbasic out there. Here are some
common tricks for speeding up your code. I have listed some of the
most common tricks I have seen and used. If anybody else any other
tricks that they would like to share, please feel free to share
them. An old dog can learn new tricks!
Also, when you use "if" expressions where a boolean is evaluated,
you should avoid using "=true" or "=false".
Slower:
dim b as boolean
if b=true then
DoSomething
end if
Faster:
dim b as boolean
if b then
DoSomething
end if
I doubt if it is that much faster unless it is in an extended loop.
Maybe a few milliseconds. It is easier to type, however.
The slowest method first evaluates "b", then evaluates "true" and
then checks for the equality. It does "DoSomething" if the equality
is true.
The fastest method evaluates "b". It does "DoSomething" if "b" is
true.
For false, use
if not b then
instead of
if b=false then.
Same answer.
But I don't know if
if b=false then
is faster than
if not b<>not true then
I wonder.
It compiles and is valid if b=False but is quite unusual usage. Using
parentheses it would look like:
If Not(b<>(not (true))) Then
Faster? Probably not consequential. Confusing? Most definitely.
Terry
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