On 29.09.2016 18:17, Ram wrote:

Ohhh thanks a lot Leon! That explains why my boost::multi_index did not work too!! I was breaking my head over this for the last 2 weeks!

And another thing: boost::unrodered_map has been around for quite some time, certainly before C++11 came around. So has boost::multi_index, I remember using it with pre-C++11 compilers. I have no idea why exactly you get the C++11 code you posted ... might be that Boost 1.61 requires C++11 (which I doubt), may be something with you config, your Boost installation or similar.

Best regards,
Leon