[Boost-bugs] [Boost C++ Libraries] #5768: any_cast

Subject: [Boost-bugs] [Boost C++ Libraries] #5768: any_cast
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-08-10 12:21:09

#5768: any_cast
 Reporter: a.khawaldeh@… | Owner: nasonov
     Type: Bugs | Status: new
Milestone: To Be Determined | Component: any
  Version: Boost 1.47.0 | Severity: Problem
 Keywords: |
 assume we have a class Base, and other class Derived that inherits Base.

 I can write
 boost::any a = new Derived;
 so, the following code
 Derived* d = any_cast<Derived*>(a);
 will work good, but!!
 Base* b = any_cast<Base*>(a);
 will fail.

 i.e boost::any_cast could not work with inheritance and polymorphism.

 You may wonder why this is needed? but I did faced this case.

 I solved this problem in '''boost::any''' on my machine, and I thought to
 share this with others, so if this sounds useful to you, please tell me
 how can I add my code to boost

 many thanks.

Ticket URL: <https://svn.boost.org/trac/boost/ticket/5768>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.

This archive was generated by hypermail 2.1.7 : 2017-02-16 18:50:07 UTC