Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9211: fstream types don't have move semantics
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-03-24 09:36:46
#9211: fstream types don't have move semantics
-------------------------------+---------------------------------
Reporter: anonymous | Owner: bemandawes
Type: Feature Requests | Status: new
Milestone: To Be Determined | Component: filesystem
Version: Boost 1.54.0 | Severity: Problem
Resolution: | Keywords: fstream rvalue move
-------------------------------+---------------------------------
Comment (by anonymous):
Here is a use case:
{{{
template <typename Stream, typename... Args>
Stream StreamOpen(Args&&... args) {
Stream stream;
stream.exceptions(ios::failbit | ios::badbit);
stream.open(forward<Args>(args)...);
return stream;
}
}}}
{{{
auto f1 = StreamOpen<std::ifstream>("filename", std::ios::binary); //
succeeds
auto f2 = StreamOpen<boost::filesystem::ifstream>("filename",
std::ios::binary); // fails
}}}
-- Ticket URL: <https://svn.boost.org/trac/boost/ticket/9211#comment:3> Boost C++ Libraries <http://www.boost.org/> Boost provides free peer-reviewed portable C++ source libraries.
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