On 12 August 2015 at 16:20, Dijk, J. van wrote: > Dear all, > > Looking into gcc/cp/Changelog, it appears that on 2015-08-06 support > for the C++ Concepts TS was added to trunk. > > Have Concepts in gcc matured to the point that end-users can > start to explore and test them? If so, the page https://gcc.gnu.org/projects/cxx1y.html > needs an update, since it mentions the c++1z Concepts > Lite *branch* at the end of the document. Yes, the branch is not in use any longer, all support is on the trunk. > There is also no explanation how to enable experimental > c++1z features that I can see on that page (like there is for > c++14 at the top of the page). I suppose a new section on > 'C++1z language features' is due? Well it should be a separate page really, since that page is about C++14 not C++17. To enable the features just use the appropriate -std option, as documented in the manual: https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html