For Loop Concept?

Dim num as Integer

For num = 1 To 5 Step -1
MsgBox num
Next num

Isn't the loop above suppose to run at least once?

nope.

Dim num as Integer

For num = 1 To 5 Step +1
MsgBox num
Next num

would make it run, or 5 to 1 step -1


but not like that

Private Sub Form_Load()
Dim num As Integer

For num = 1 To 1 Step -1
MsgBox num
Next num

End Sub

will run once

i remembered that in C this code will run at least once

Is this because cause 'Step' is just that, it will "step" through the loop and the + or - tells it what direction to go ?

Quote:

---

Originally Posted by newace

i remembered that in C this code will run at least once

---

In C that will be an endless loop. Why it isn't that in VB...hmmm...no idea..:D

vb is *smarter* than C++

Quote:

---

Originally Posted by dglienna

vb is *smarter* than C++

---

That is nearly a post to get banned for..:)

Well I guess it is true some how. It at least saves you a Ctr+Alt+Del thats for sure.



ØØ

but how come the following runs?

For num = 1 To 1 Step -1
MsgBox num
Next num

End Sub

because it isn't false until it cycles through the first time. as soon as it applies the step value it is false.

Step has two purposes, to Increment/Decrement the counter value and determine loop processing. The rule is

If Step is Positive or 0 then Counter Value must be <= End Value
If Step is Negative then Counter Value must be >= End Value

Its all in the help file.