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/*****************************************************************************
*
* storage.cpp Blitz++ Array custom storage orders example
*
* $Id$
*
*****************************************************************************/
#include <blitz/array.h>
BZ_USING_NAMESPACE(blitz)
int main()
{
// 3x3 C-style row major storage, base zero
Array<int,2> A(3, 3);
// 3x3 column major storage, base zero
Array<int,2> B(3, 3, ColumnMajorArray<2>());
// A custom storage format:
// Indices have range 0..3, 0..3
// Column major ordering
// Rows are stored ascending, columns stored descending
GeneralArrayStorage<2> storage;
storage.ordering() = firstRank, secondRank;
storage.base() = 0, 0;
storage.ascendingFlag() = true, false;
Array<int,2> C(3, 3, storage);
// Set each array equal to
// [ 1 2 3 ]
// [ 4 5 6 ]
// [ 7 8 9 ]
A = 1, 2, 3,
4, 5, 6,
7, 8, 9;
cout << "A = " << A << endl;
// Comma-delimited lists initialize in memory-storage order only.
// Hence we list the values in column-major order to initialize B:
B = 1, 4, 7, 2, 5, 8, 3, 6, 9;
cout << "B = " << B << endl;
// Array C is stored in column major, plus the columns are stored
// in descending order!
C = 3, 6, 9, 2, 5, 8, 1, 4, 7;
cout << "C = " << C << endl;
Array<int,2> D(3,3);
D = A + B + C;
#ifdef BZ_DEBUG
A.dumpStructureInformation();
B.dumpStructureInformation();
C.dumpStructureInformation();
D.dumpStructureInformation();
#endif
cout << "D = " << D << endl;
return 0;
}
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