Conditionals question

[JRowe]

Is Switch faster than Select or If/Elseif, since it's only testing one value against multiple conditions, or is it all in memory anyway and there's no difference between the two?

I ask because I'm going to have large arrays (5000+ elements) being tested frequently, and I want to rewrite this function to be as fast as AutoItly possible. I'm also fairly certain the amount of code in this function could be pared down with StringRegExp.

Func __ArraySearchWithWildcards ($array, $searchstring)
    If Not IsArray ($array) Then Return -2
    For $z = 0 To UBound ($array) - 1
        $string_split = StringSplit (StringStripWS ($array[$z], 3), "*")
        If $string_split[0] = 1 And StringInStr (StringStripWS ($searchstring, 3), $string_split[1]) Then
            If StringReplace (StringStripWS ($searchstring, 3), $string_split[1], "") = "" Then
                Return $z
            EndIf
        ElseIf $string_split[0] = 2 Then
            If StringInStr (StringStripWS ($searchstring, 3), $string_split[1]) And _
                StringInStr (StringStripWS($searchstring, 3), $string_split[2]) Then
                Return $z
            EndIf
            If $string_split[1] = "" And StringInStr (StringStripWS($searchstring, 3), $string_split[2]) Then
                Return $z
            EndIf
            If $string_split[2] = "" And StringInStr (StringStripWS($searchstring, 3), $string_split[1]) Then
                Return $z
            EndIf
        EndIf
    Next
    Return -1
EndFunc

[d4rk]

if you work on 1 variable, use Switch , but in your case, i think Select will be better than if/

[JRowe]

Func __ArraySearchWithWildcards ($array, $searchstring, $z=0)
    If Not IsArray ($array) Then Return -2
        While $z< UBound($array)-1
            $string_split = StringSplit (StringStripWS ($array[$z], 3), "*")
                Select
                    Case $string_split[0] = 1 And StringInStr (StringStripWS ($searchstring, 3), $string_split[1])
                        If StringReplace (StringStripWS ($searchstring, 3), $string_split[1], "") = "" Then
                            Return $z
                        EndIf
                    Case $string_split[0] = 2
                        Select
                            Case StringInStr (StringStripWS ($searchstring, 3), $string_split[1]) And StringInStr (StringStripWS($searchstring, 3), $string_split[2])
                                Return $z
                            Case $string_split[1] = "" And StringInStr (StringStripWS($searchstring, 3), $string_split[2])
                                Return $z
                            Case $string_split[2] = "" And StringInStr (StringStripWS($searchstring, 3), $string_split[1])
                                Return $z
                    EndSelect
                EndSelect
            $z+=1
        WEnd
    Return -1
EndFunc

That seems to be what I wanted. Works like a charm, and I personally think it's more elegant than all the If/EndIfs.

Now for the stringRegExp experimentation

Thanks!

Edited June 11, 2008 by Jrowe

[weaponx]

There are some benchmarks for a few of the control structures here:

http://www.autoitscript.com/forum/index.ph...mp;hl=benchmark

http://www.autoitscript.com/forum/index.ph...mp;hl=benchmark

My own topic about AutoIt function overhead:

http://www.autoitscript.com/forum/index.ph...ction++overhead

[JRowe]

Neat. I can implement my own benchmarks now that I've got those examples to work with... hadn't thought of that

Thanks!