[Gambas-user] Speaking of optimizations

[Cedron Dawg]

I just found out about the .Max property of arrays, saving having to do a .Count - 1.  

I like it, but the name is a little confusing to me, I thought it would mean MaxValue, not MaxIndex.  No I can't think of a better short word.  "Top" is misleading, so is "Limit".

My real question is a performance related one.  Given:

        Dim a As New String[100]
        Dim i, m As Integer
        .
        .        
        m = a.Max
        For i = 0 To m
          ...
        Next
        .
        .        
        For i = 0 To a.Max
          ...
        Next
        
Does the first loop give any performance advantage over the second one?  Or does the compiler recognize that "a" won't change size in the loop and implement the first form under the covers?