[PATCH] io: Use gnulib fts implementation (BZ 22944, BZ 20331)

[Paul Eggert]

On 2026-02-23 07:02, Florian Weimer wrote:
> I think we generally follow the “fastest varying operand first” in the
> glibc sources (because that's what most programmers do anyway).

Gnulib often follows a different convention, where < and <= is preferred 
more often than it is in glibc.

It's a style thing. Gnulibish style is common among many mathematicians 
when expressing ranges, even one-sided ranges like "0 < ε". You'll see 
it commonly in work by first-class contemporary mathematicians like Tim 
Gowers or my colleague Terence Tao. More important, it's a good style in 
programming. I learned it from the late D.V. Schorre, perhaps the best 
programmer I ever met. Knuth credits Schorre with the invention of 
goto-free programming in the early 1960s; he was *very* focused on 
making programs clear.

We should not insist on Andreas's preferred style when importing code 
from Gnulib, any more than we insist on Gnulib's preferred style when 
importing code from Glibc.