Summary: 23 instances, 20 unique

Text	Count
// TODO Look at all the special cases handled by erase_if in Library Fundamentals 2	1
// TODO handle char const * by turning it into a delimited range?	1
// TODO reimplement to only need forward iterators	1
// TODO: if end is a sentinel, it holds an unnecessary pointer back to	1
// TODO: Find the bug that these statements work around	1
//  TODO Support Forward, non-Sized ranges by returning a range that	1
// TODO associative erase by key	1
// TODO: could support const iteration if range_reference_t<Rng> is a true reference.	2
// TODO Would be nice to use WeaklyComparable here, but that uses Relation instead	1
// TODO: constrain return type	1
// TODO Once we support contiguous iterators, we can generalize this.	1
// TODO bitwise ops and shifts	1
// BUGBUG TODO what about advance??	1
// TODO add specialization of range_cardinality for when we can determine the range is infinite	1
// TODO support slice from end.	1
// TODO Forward iterators, like EoP?	1
// TODO Switch to variable template when available	3
// FIXME: *not* a workaround; disables a feature.	1
// TODO group_by could support Input ranges by keeping mutable state in	1
"difference type. TODO slicing from the end with 'end-2' syntax is not "	1