Re: do { quit; } else { }

On 11/04/2025 18:22, Kaz Kylheku wrote:

On 2025-04-11, Michael S <already5chosen@yahoo.com> wrote:

On Thu, 10 Apr 2025 17:59:15 -0700
Keith Thompson <Keith.S.Thompson+u@gmail.com> wrote:
>

>
An understanding of what "compatible types" means.

>
Bart didn't say that types are compatible or non-compatible.
He said that they are 'compatible enough'. That is not terminology of C
Standard, but terminology of his own. And he seems to understand it.
>
In my own translation, 'compatible enough' means that when these structs
are accessed then any sane or even semi-sane compiler will generate code
that will have the same effect as in case of access through structures
with literally identical declarations.

 so struct { long x; } and struct { int x; } are compatible enough,
in situations that are portable enough.

What about struct {long x;} and struct {int64_t x;}?
Whether they are compatible seems to be depend on platform.
Or rather, whether or not int64_t happens to defined on top of 'long' or 'long long'.