Re: "A diagram of C23 basic types"

On 02/04/2025 16:12, Muttley@DastardlyHQ.org wrote:

On Wed, 2 Apr 2025 11:12:07 -0300
Thiago Adams <thiago.adams@gmail.com> wibbled:

Em 4/2/2025 11:05 AM, Muttley@DastardlyHQ.org escreveu:

So what exactly is better / faster / clearer / safer in C23?

>
We already had some C23 topics here.
My list
>
  - #warning (better)
  - typeof/auto (better only when strictly necessary)

 Auto as per C++ where its used as a substitute for unknown/long winded
templated types or in range based loops? C doesn't have those so there's no
reason to have it. If you don't know what type you're dealing with in C then
you'll soon be up poo creek.
 

  - digit separator (better, safer)

 Meh.

What's the problem with it? Here, tell me at a glance the magnitude of this number:
     10000000000
You're either likely to get it wrong, or need to start counting digits. Here (not the same number) it's easier:
     100_000_000

 

  - binary literal useful

 We've had bitfields for years which cover most use cases.

Bitfields and binary literals are completely different things! A binary literal looks like this (if I got the prefix right):
      0b1_1101_1101         // the decimal value 447 or hex value 1DD
      0b11011101            // same thing without the separators
This is a bitfield, which can only appear inside a struct definition:
      int a:12;
The mystery is why it's taken half a century to standardise such literals.