Re: encapsulating directory operations

On 2025-05-22, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:

On 5/22/25 18:46, Lawrence D'Oliveiro wrote:

On Thu, 22 May 2025 14:13:53 -0400, James Kuyper wrote:
 

POSIX wasn't universal when C90 came out, and it still isn't universal
today.

 
POSIX is very much universal today. The entire Internet runs on POSIX-
based systems. You likely have one in your pocket or purse right now.

>
POSIX systems are quite wide-spread today. That doesn't make them
universal. In order to be universal, there must be no non-POSIX systems,
and that is manifestly not the case. In particular, while there is
support for POSIX subsystem for Windows, it does not fully conform with
POSIX, and is not the default when using Windows. There's also systems
with no operating system at all, many of which could (and some of which
do) support a fully conforming implementation of C.

POSIX is fairly decently supported on Windows by Cygwin.

(Of course not the POSIX subsystem; that is just some abandonware that
Microsoft perpetrated years ago to get a rubber stamp on some government
contracts or something.)

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