id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10098	Ugly warning about sign/unsigned mismatch in comparison	Joseph Southwell <joseph@…>	Neil Groves	"operator[] and operator() in iterator_range_core take difference_type and then compare it to size type. To fix the warning either those operators should take size_type or you should cast at like ((size_type)at) in the comparison. 

I am attaching a patch with cast option in it since that is less likely to impact things calling these operators. "	Patches	closed	Boost 1.56.0	range	Boost Release Branch	Cosmetic	fixed