On Fri, Mar 31, 2023 at 02:27:17PM -0000, Michael van Elst wrote: > c++ also doesn't define __STDC_VERSION__ nor _ISOC99_SOURCE.
It defines the former but not the latter: > c++ -dM -E - < /dev/null | fgrep __STDC_VERSION__ #define __STDC_VERSION__ 201710L > c++ -dM -E - < /dev/null | fgrep __ISO > (at least w/o special -std= options) Martin
