Hi, I'm having the same issue on ARM based Mac. Could this be looked at ? Thanks ! Le mar. 29 oct. 2019 à 16:37, Bastien Commelongue via Boost-users < boost-users@lists.boost.org> a écrit :

Hello,

I am building an app for IOS (ARM) and I had this issue while compiling: *Boost.Numeric.Interval: Please specify rounding control mechanism.*

C99 version should be used in this case but __USE_ISOC99 is not defined.

Modifying the condition with this code (using __cplusplus) fixed the issue: *boost/numeric/interval/hw_rounding.hpp(36)*

*#if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE) && (defined(__USE_ISOC99) || defined(__MSL__) || (defined __cplusplus && __cplusplus >= 201103L))# include <boost/numeric/interval/detail/c99_rounding_control.hpp>#endif*

Let me know if I missed something or if you plan to integrate this modification in a next version.

Cheers, Bastien Commelongue _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org https://lists.boost.org/mailman/listinfo.cgi/boost-users

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