[Development] RFC: handling of C++ feature test macros
ville.voutilainen at gmail.com
Thu Sep 19 15:59:26 CEST 2019
On Thu, 19 Sep 2019 at 16:29, Giuseppe D'Angelo via Development
<development at qt-project.org> wrote:
> On 19/09/2019 14:56, Ville Voutilainen wrote:
> > I think Peppe's concern, while somewhat theoretical, is a valid one.
> > I'll talk to SG10 about this so that
> > we hopefully never run into the problem in practice.
> Thanks! This would also bring up the question on whether it's of any
> importance what values the feature-testing macros are defined to :-)
I already know the answer to that question; it depends on the macro,
and in some cases
different versions have very different meanings. When the features
evolve in ways
that suggest there's a need for detection, the values of existing
macros are bumped.
That might not necessarily mean an incompatibility for users who just
use the older version of the
More information about the Development