Re: C23 thoughts and opinions

On Thu, 23 May 2024 17:10:38 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

Michael S <already5chosen@yahoo.com> writes:

On Wed, 22 May 2024 22:11:44 +0200
David Brown <david.brown@hesbynett.no> wrote:
 

 
I will definitely use that.  Sometimes I want a constant expression
for things like array sizes or static initialisers, and want to
calculate it.  constexpr gives you that without having to resort to
macros.  

>
I don't say that everything that can be done with C23 constexpr can
be done with enum, but for uses like ones you mentioned above, 90%
probably can be done with enum. 

 
Are C23 enums signed?  or unsigned?   What is the supported enum
range?
 

I never read the standard, so below is *according to my understanding*,
rather than the fact.
Before C23 - signed, at least as wide as int, but wider ranges are not
prohibited and can be provided by implementation.
C23 - enum without type specifier are the same as before. enum with type
specifier have range of their master type.