https://issues.dlang.org/show_bug.cgi?id=13348
Thayne <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #3 from Thayne <[email protected]> --- I don't think byGrapheme can be pure in general, because, in general, the input range used doesn't necessarily have pure input methods. For example the input range could read from I/O. The solution would probably be to add pure if and only if the front, popFront, and empty methods of the inputRange are themselves pure. I'm not sure what the best way to do that would be. --
