How does the community feel about having a "popFrontExactly" in
phobos?
"popFrontN" is like "take": Safe, but more costly: It double
checks there actually *are* "n" elements in the range, and if
not, stops pop-ing.
When using popFrontN, more often than not, the "n" value is
extracted from iterating the range already, so we *know* there
are "n" elements in the range. In that case, popFrontN is
un-necesarilly costly.
In that case, we could have "popFrontExactly", which would
operate like "takeExactly": It would pre-assume that the *are* n
elements, and assert otherwise.
--------
I know I've had the usecase for this in the past. Performance and
convenience gains are there for both forward and sliceable ranges.
Should I push a pull request adding such a function (and its
friends) to phobos? How does the group feel about such functions?
- popFrontExactly? monarch_dodra
-
