Re: [boost] [range] Proposal: addition of front(), back(), at(), operator[]

On Mar 23, 2014, at 12:59 PM, Adam Wulkiewicz wrote:

For SinglePassRange it could iterate over the range and return the reference to the last element

I am not in favor of things that are sometimes silently expensive. I would much rather this call failed for SinglePassRanges, and if I wanted that, I could write it myself. — Marshall