[Boost-users] [xpressive] Shouldn't external placeholder variables allow consts?

Subject: [Boost-users] [xpressive] Shouldn't external placeholder variables allow consts?
From: Ami Ganguli (ami.ganguli_at_[hidden])
Date: 2009-10-10 06:46:00

I came across an interesting problem:

   what.let(_placeholder = this);

fails to compile, because 'this' is a const pointer.

A simple workaround:

   MyClass *_this = this;
   what.let(_placeholder = _this);

But surely this shouldn't be necessary?  Couldn't the right hand side
of the let be declared const?

Regards,
Ami.