id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7408	istream_range should not pull istream	Christopher Yeleighton <giecrilj@…>	Neil Groves	"To minimize the time you have to wait on the compiler, it is good to only #include the headers you really need. istream_range.hpp simply #includes <istream> when it does not need to — and that can penalize the runtime as well. 

<iosfwd> should be #included whenever you simply need the name of an I/O-related class, such as ""basic_istream"". Like the name implies, these are forward declarations."	Bugs	closed	To Be Determined	range	Boost 1.51.0	Optimization	fixed