System.DynArrayIndex
Delphi
function DynArrayIndex(P: Pointer; const Indices: array of NativeInt; TypInfo: Pointer): Pointer; overload;
function DynArrayIndex(P: Pointer; const Indices: array of Integer; TypInfo: Pointer): Pointer; overload;
C++
extern DELPHI_PACKAGE void * __fastcall DynArrayIndex(void * P, const int *Indices, const int Indices_High, void * TypInfo)/* overload */;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | System.pas System.hpp |
System | System |
Description
Returns a pointer to a specific dynamic array element.
DynArrayIndex returns a pointer to an element specified by an index from a dynamic array.
Example
type
T2DDynamArray = array of array of Integer;
var
A: T2DDynamArray;
P: Pointer;
begin
SetLength(A, 3, 4);
A[1][2] := 100;
P := DynArrayIndex(Pointer(A), [1, 2], TypeInfo(T2DDynamArray));
Writeln(IntToStr(PInteger(P)^)); // displays 100
end.