IndexDWord

Search for a DWord value in a memory range.

Declaration

Source position: systemh.inc line 799

Description

IndexDWord searches the memory at buf for maximally len positions for the DWord DW and returns it's position if it found one. If DW is not found then -1 is returned. The position is zero-based.

Errors

Buf and Len are not checked to see if they are valid values.

See also

Example

Program Example106;

{ Program to demonstrate the IndexDWord function. }

Const
  ArraySize = 1000;
  MaxValue = 1000;

Var
  Buffer : Array[1..ArraySize] of DWord;
  I,J : longint;
  K : DWord;

begin
  Randomize;
  For I:=1 To ArraySize do
    Buffer[I]:=Random(MaxValue);
  For I:=1 to 10 do
    begin
    K:=Random(MaxValue);
    J:=IndexDWord(Buffer,ArraySize,K);
    if J=-1 then
      Writeln('Value ',K,' was not found in buffer.')
    else
      Writeln('Found ',K,' at position ',J,' in buffer');
    end;
end.