StringBuilder for ThinBASIC @ GitHub

[Petr Schreiber]

Hi Primo,

perfectly valid, but this explicit length check is more safe:

Uses "StringBuilder", "Console"
 
Dim sb As New StringBuilder
   
sb.Add("Ciao world")
sb.Add("Ciao world")
   
Dim s As String * 4 At sb.DataPtr 
  
PrintL s
printl 
 
Long pointer
pointer = sb.DataPtr 
String st 
long i


For i=1 To sb.Length
  st = Peek$(pointer, i)
  PrintL st
Next
 
WaitKey

With this in mind, it is natural that you can reach the string inside like:

Uses "StringBuilder", "Console"
 
Dim sb As New StringBuilder
   
sb.Add("Ciao world")
sb.Add("Ciao world")
   
Dim s As String * sb.Length At sb.DataPtr 
  
PrintL s
 
WaitKey

Petr

[primo]

Hi Petr
you said in the announcement of TB 1.10.1 http://www.thinbasic.com/community/s...ll=1#post93686
that StringBuilder can be correctly initialized via string
what does that mean ?
you already have posted above how to initialize a StringBuilder

Dim sb As New StringBuilder
sb.Add("Ciao world")
sb.Add("Ciao world")
Dim s As String * sb.Length At sb.DataPtr 
PrintL s

[Petr Schreiber]

Hi primo,

I meant that you can do:

Dim sb As New StringBuilder("Ciao")

It will set initial text plus set internal capacity to double of initial text length (speed optimization for further additions).


Petr