cpp/ranges/chunk view/iterator/operator arith

Advances or decrements the.

Let, , and be the underlying  of.

@1@ Equivalent to:

Before the invocation the expression must be, otherwise the behavior is undefined.

@2@ Equivalent to:.

@3@ Equivalent to:

@4@ Equivalent to:.

@5@ Equivalent to:

If is positive, then before the invocation the expression  must be  (i.e., informally, the requested chunk should be "inside" the underlying sequence). If is negative, this precondition is always met.

@6@ Equivalent to:.

Return value
@1,3,5,6@ @2,4@ a copy of that was made before the change