On 9 June 2015 at 04:49, Edward Diener wrote: > I am looking for a way to check for C++14 support for the shared_mutex > header in libstdc++ using preprocessor predefined macros. Is there a way to > do this ? Does checking for some value of __cplusplus >= 201402 do this or > is there some other check or further check which I must do ? To check for the header use #if __has_include(shared_mutex) To check whether std::shared_timed_mutex is defined by that header include it and test #if __cpp_lib_shared_timed_mutex >= 201402L
