include c:\cxpl\codes;
def IntSize = 4;                        \number of bytes in an integer
int Matrix, Size, I, J;

[Text(0, "Size: ");  Size:= IntIn(0);
Matrix:= Reserve(Size*IntSize);         \reserve memory for 2D integer array
for I:= 0 to Size-1 do
        Matrix(I):= Reserve(Size*IntSize);
for J:= 0 to Size-1 do                  \make array an identity matrix
    for I:= 0 to Size-1 do
        Matrix(I,J):= if I=J then 1 else 0;
for J:= 0 to Size-1 do                  \display the result
    [for I:= 0 to Size-1 do
        [IntOut(0, Matrix(I,J));  ChOut(0, ^ )];
    CrLf(0);
    ];
]