include/range/v3/range.hpp (3 lines):
	- line 294: // TODO Switch to variable template when available
	- line 349: // TODO Switch to variable template when available
	- line 403: // TODO add specialization of range_cardinality for when we can determine the range is infinite


include/range/v3/view/join.hpp (2 lines):
	- line 149: // TODO: could support const iteration if range_reference_t<Rng> is a true reference.
	- line 293: // TODO: could support const iteration if range_reference_t<Rng> is a true reference.


include/range/v3/action/slice.hpp (2 lines):
	- line 67: // TODO support slice from end.
	- line 104: "difference type. TODO slicing from the end with 'end-2' syntax is not "


include/range/v3/algorithm/inplace_merge.hpp (1 line):
	- line 209: // TODO reimplement to only need forward iterators


include/range/v3/utility/compressed_pair.hpp (1 line):
	- line 159: // TODO Switch to variable template when available


include/range/v3/algorithm/mismatch.hpp (1 line):
	- line 33: // TODO Would be nice to use WeaklyComparable here, but that uses Relation instead


include/range/v3/utility/safe_int.hpp (1 line):
	- line 275: // TODO bitwise ops and shifts


include/range/v3/view/group_by.hpp (1 line):
	- line 37: // TODO group_by could support Input ranges by keeping mutable state in


include/range/v3/action/remove_if.hpp (1 line):
	- line 30: // TODO Look at all the special cases handled by erase_if in Library Fundamentals 2


example/calendar.cpp (1 line):
	- line 97: // TODO: Find the bug that these statements work around


include/range/v3/view/all.hpp (1 line):
	- line 85: // TODO handle char const * by turning it into a delimited range?


include/range/v3/view_adaptor.hpp (1 line):
	- line 311: // FIXME: *not* a workaround; disables a feature.


include/range/v3/utility/common_iterator.hpp (1 line):
	- line 99: // BUGBUG TODO what about advance??


include/range/v3/view/remove_if.hpp (1 line):
	- line 96: // TODO: if end is a sentinel, it holds an unnecessary pointer back to


include/range/v3/view/slice.hpp (1 line):
	- line 326: //  TODO Support Forward, non-Sized ranges by returning a range that


include/range/v3/begin_end.hpp (1 line):
	- line 101: // TODO: constrain return type


include/range/v3/view/counted.hpp (1 line):
	- line 73: // TODO Once we support contiguous iterators, we can generalize this.


include/range/v3/action/erase.hpp (1 line):
	- line 58: // TODO associative erase by key


include/range/v3/algorithm/sort.hpp (1 line):
	- line 138: // TODO Forward iterators, like EoP?