circular shift array

Hi,

What is a simple way to shift the elements in an array, circularly? Is
there a way to do it so that you don't need a separate storage array?

IE I want to shift array A{1,2,3,4,5,6,7,8} by 3 to the right. The result
would be B{6,7,8,1,2,3,4,5)

Thanks!
B



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