LWG3847 ranges::to can still return views

Author: burblebee

source/ranges.tex

@@ -2272,6 +2272,10 @@
 \end{itemdecl}
 
 \begin{itemdescr}
+\pnum
+\mandates
+\tcode{C} is a cv-unqualified class type.
+
 \pnum
 \returns
 An object of type \tcode{C}
@@ -2403,6 +2407,11 @@
 \end{itemdecl}
 
 \begin{itemdescr}
+\pnum
+\mandates
+For the first overload,
+\tcode{C} is a cv-unqualified class type.
+
 \pnum
 \returns
 A range adaptor closure object\iref{range.adaptor.object} \tcode{f}