cpp/ranges/slide view/begin

Returns an iterator to the first element of the.

@1@ If models, equivalent to:

Otherwise, equivalent to:.

@@ If models  this function caches the result within the  for use on subsequent calls. This is necessary to provide the amortized constant-time complexity required by the.

@2@ Equivalent to:.

Parameters
(none)

Return value
An to the first element of, which points to the -sized subrange of the possibly const-qualified underlying view type –  for overload  or  for overload.