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Search for a DWord value in a memory range.
Source position: systemh.inc line 792
function IndexDWord( |
const buf; |
len: SizeInt; |
b: DWord |
):SizeInt; |
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.
Buf and Len are not checked to see if they are valid values.
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Search for a byte in a memory range. |
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Search for a character in a memory range. |
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Search for a WORD value in a memory range. |
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Compare 2 memory buffers DWord per DWord |
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.