On 11/23/15 7:10 PM, Freddy wrote:
On Thursday, 19 November 2015 at 21:30:23 UTC, Freddy wrote:
...
Another problem I noticed with ranges is that all functionality is
unionized. Ranges are expected to be able to popFront,Index,popBack,
randomly possibly forcing ranges to carry unneeded buffers if indexing
or popBack in never used.
surely you mean opIndex? Note that ranges are required to implement
front, popFront, and empty. That's it, then it is a range. Even save
isn't required unless you want it to be a forward range.
But yes, a fundamental requirement is to be able to get the front
element repeatedly. This necessitates a buffer or "saving of state".
-Steve
