[PATCH] Provide a C++ version of iseqsig

[Florian Weimer]

On 11/03/2017 10:58 PM, Jonathan Wakely wrote:
> Maybe it's better to leave the C++ definitions to libstdc++, where we
> can use decltype and use arbitrarily complicated template
> metaprogramming that probably isn't appropriate for glibc.

I think we want to fix the 2.26 release, so we need to do something 
without GCC's help here.  The bug reports suggest to me that people 
really want to use this functionality from C++.

I suppose we could restrict the definition to GNU compilers (which ave 
__typeof) or compilers which support C++11 (and thus decltype).

Thanks,
Florian