MultiShift(const DAD* dst, const DAD* src, const int len,
int shift [], Mode mode [])
The source array is described by the DAD *src and the
destination array is described by the DAD *dst.
len specifies the size of each array element, in bytes.
Vectors shift and mode have extent R--the rank of
the source array.
The shift amount, which may be negative, in
dimension r is given by shift [r].
The flag mode [r] specifies the type of shift:
It takes one of the values CYCL, EDGE or NONE.