On Jan 21, 2014, at 5:26 AM, John Maddock
Ok. Better framed question.
The following is compiled on XCode 5.0.1.
Clang :
Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) Target: x86_64-apple-darwin12.5.0 Thread model: posix
Boost v 1.55.0. Build 2.0-m12.
Not sure how to fix it. map complains about constructor ambiguity and I am not sure how to fix it.
I'm not able to reproduce with either MSVC or g++, also looking at the source for libc++ I see the current source has only one overload of __construct_node, where as yours appears to have two: maybe this is an old libc++ bug?
The key to reproducing this is “-std=c++11”; in C++03 it works, and in C++11 it does not. I believe that this is related to http://llvm.org/bugs/show_bug.cgi?id=16549 (which has been fixed) In any case, your code works fine with the latest libc++ sources, but I’m guessing that’s not a helpful answer for you. — Marshall