cygwin support for C++11 in g++4.9.2

Question

I am trying to test some C++11 code on Windows 7 under cygwin, and am getting compiling errors for functions that are defined starting with C++11, such as std::log2

Answer 1

The issue seems to be a bug related to cygwin implementation, thanks to Shafik Yaghmour for pointing it out.

The issue is now fixed via a patch for <cmath>, also at the link provided above.