Re: implicit declarations

[al davis]

> On Wed, Sep 16, 2020 at 02:52:51PM +1000, mwaters517 wrote:
> > getting alot (ie. 100's) of warnings like the following :
> > [..]
> > implicit declarations
> > [..]

How did you get those warnings?
I have wished for that feature for years.

> > I tried to dig a little deeper to see if I could suppress this compiler
> > warning but
> > there's no g++ switch to do that as far as I can see.  
> 
> Hi Mike.
> 
On Wed, 16 Sep 2020 08:11:49 +0200
Felix Salfelder <felix@salfelder.org> wrote:
> There is a switch to override the language version. On Arch, g++
> probably defaults to c++17, and in c++17 something about default
> constructors has changed. 

ok .. maybe that's it.

> We need to add the "missing"
> declarations, and they should work with either c++. See "constr" branch
> for an attempt.

These are good changes.  It should have been that way all along.


This raises another question.

Starting with C++11, there is an explicit way to specify this ...
using a generated constructor, disabling a constructor.

I think it is time to switch over to the new way, supported
by compilers since c++11, everywhere, and start requiring c++11 or c++14
or later.

Some systems still in common use do not yet support c++17, so I think
c++14 is appropriate now.

Comments?