Virtual dynamic Strings

[ReneMiner]

Impossible? Who said that?

'---Script created on 04-03-2022 08:21:35 by ReneMiner


uses "console"

' - - -  real string
string a = "Hello"      
                         
  ' - - -  data for the virtual string 
 dword b = heap_allocbystr(mkdwd$(5) & "World") 



 ' allocated above a dynamic String-structure: 
'  StrLen As Dword & bChar(StrLen) As Byte 


dword C = b + 4         ' <<< virtual StrPtr

string V             ' virtual string  <<<

' real string output:

    Print a & $spc 
 


    memory_swap(varptr(V), varptr(c), 4)   'place a layover


' virtual string output:

   printl V & " !"



    memory_swap(varptr(V), varptr(c), 4)  'put it back 
      
waitkey 


'hints
'printl "Varptr( a ) " & str$(Varptr( a ))
'printl "StrPtr( a ) " & Str$(Strptr( a ))
'printl str$(peek(Dword, varptr(a)))

of course - it's virtual.
Not real but not a fake neither.

Allows using the "fast" string methods on memory. The keywords in the string-functions list that end with F
sadly no InstrF available...

[ReneMiner]

i thought this would loose an avalanche... but if no one reads it - nobody will ever know.

guess i must create a module to make use oif this and everyone will be surprised - except the reader of this thread