On Mon, Jul 27, 2015 at 4:33 AM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 27 July 2015 at 02:10, Jeffrey Walton wrote: >> GCC does not appear to define __cplusplus under MinGW, so I can't >> perform the test __cpluplus >= 201103L. > > It defines it unconditionally on all platforms. > >> $ g++ -dM -E - < /dev/null | grep cplusplus >> $ >> >> $ g++ -std=c++11 -dM -E - < /dev/null | grep cplusplus >> cc1.exe: warning: command line option '-std=c++11' is valid for >> C++/ObjC++ but not for C [enabled by default]= > > This tells you you are running the C compiler not the C++ compiler. > > When reading from stdin g++ doesn't set the default language to C++ (I > keep meaning to file an enhancement request in Bugzilla about this). > >> How do I test for the noexcept feature? > > Compile as C++ not C, using -x c++ Doh, thanks.... I've got to get more sleep before I start asking questions on public mailing lists... Jeff
