id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3519	It should be possible to use consts as external placeholder variables.	ami.ganguli@…	Eric Niebler	"The right-and-side of placeholder let-expressions are not declared as const, so common use-cases like:

   
{{{
placeholder<int> _i;
smatch what;
what.let(_i = 1);
}}}


or:

   
{{{
placeholder<MyClass *> _p;
smatch what;
what.let(_p = this);
}}}


fail to compile.  It would be nice to have some way to specify a placeholder for non-mutable data.  Perhaps:


{{{
placeholder<int const> _i;
}}}

(suggested by Eric Niebler)
"	Feature Requests	assigned	To Be Determined	xpressive	Boost 1.40.0	Problem