Hi,
small heads-up for everyone: as of yesterday, KDEFrameworksCompilerSettings
from current ECM development branch now sets
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
for all KF modules (triggered by required ECM 5.84.0 version, which was also
bumped yesterday in all KF module development branches already to activate the
setting).
Any custom CMAKE_CXX_STANDARD settings as before present in some KF modules
have been removed as well, so all KF modules code should build now complying
to the C++17 standards, so everyone can also take advantage of those in new
code for KF modules from now on.
BEWARE (just to emphasize the obvious to you, so it can be referenced ;) ):
As KF5 promises ABI & source backwards-compatibility for the KF5 series to its
consumers, public KF headers need to stay compatible with projects using C++11
(or C++14).
So in public headers C++17 features can only be used for new API and also
needs to be guarded properly by respective preprocessor macros to not be seen
in C++<17 usages of KF headers.
Cheers
Friedrich
