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Subject: [boost] [parameter] Go C++11 and above only, or keep C++03 support?
From: Cromwell Enage (cromwell.enage_at_[hidden])
Date: 2018-11-03 02:17:36

Hi, everyone.

The end of section 3.2.1 of the current Boost.Parameter home page tutorial
notes "that because of the forwarding problem,
parameter::parameters::operator() can't accept non-const rvalues". I've
submitted a PR to the develop branch on GitHub that would grant
Boost.Parameter the ability to support perfect forwarding and eliminate
this issue. However, the PR uses rvalue references (in parameter::keyword,
parameter::parameters, and the code generation macros) and variadic
templates (in parameter::parameters and the code generation macros). With
the exception of BOOST_PARAMETER_TEMPLATE_KEYWORD, the PR would make
Boost.Parameter a C++11 library. As a result--based on <>--the
following Boost libraries known to use Boost.Parameter would also become

Boost.MetaStateMachine or Boost.MSM

I'd like to hear from everyone else, especially the maintainers and users
of these libraries, if it's okay for Boost.Parameter to go C++11 and above
only or if C++03 support is still necessary.

Cromwell D. Enage

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