Re: "A diagram of C23 basic types"

On 02.04.2025 07:59, Alexis wrote:

 
Thought people here might be interested in this image on Jens Gustedt's
blog, which translates section 6.2.5, "Types", of the C23 standard
into a graph of inclusions:
 
  https://gustedt.wordpress.com/2025/03/29/a-diagram-of-c23-basic-types/

A nice overview. - I have questions on some of these types...

The _Decimal* types - are these just types with other implicit
encodings, say, BCD encoded, or some such?

The nullptr_t seems to be a special beast concerning the "NULL"
entity; what purpose does that type serve, where is it used?

I see the 'bool' but recently seen mentioned some '_Bool' type.
The latter was probably chosen in that special syntax to avoid
conflicts during "C" language evolution?
How do regular "C" programmers handle that multitude of boolean
types; ranging from use of 'int', over own "bool" types, then
'_Bool', and now 'bool'? Since it's a very basic type it looks
like you need hard transitions in evolution of your "C" code?

Janis