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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.unix.shell,comp.unix.programmer,comp.lang.misc
Subject: Re: Python (was Re: I did not inhale)
Date: Mon, 19 Aug 2024 09:44:56 +0200
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On 18/08/2024 21:24, Keith Thompson wrote:
> David Brown <david.brown@hesbynett.no> writes:
> [...]
>> Without looking it up, what does the C standard library "fegetmode"
>> function do?
> 
> Nothing, it's specific to GNU libc.
> 

(This has been discussed in a follow-up in comp.lang.c, but others here 
might not see that.)

The function is in standard C23, but not earlier C standard versions. 
C23 has not yet been adopted by ISO (it is due in a couple of months), 
so "fegetmode" is not part of current standard C.  But it will be soon.

Anyway, the point is that most C programmers can write useful C code 
without knowing about such functions.  I didn't intend to pick a new C23 
function as an example, just a relatively obscure C standard library 
function, and the standard version I happened to have open at the time 
was C23.