Unauthorized file renaming

[sergeevabc]

Windows 7 x64, rnd64 0.41

$ rnd -r 1k birds.txt
birds.txt generated
size: 1024 bytes
time: 0 s 15 ms

$ rnd -r 2k птицы.txt
птицы.txt generated
size: 2048 bytes
time: 0 s 15 ms

So far so good: birds = birds, птицы = птицы. But…

$ rnd -r 3k pájaros.txt
pajaros.txt generated
size: 3072 bytes
time: 0 s 16 ms

$ rnd -r 4k vögel.txt
vogel.txt generated
size: 4096 bytes
time: 0 s 16 ms

pájaros ≠ pajaros, vögel ≠ vogel

[sergeevabc]

Err… Hello?

[Tinram]

Thank you @sergeevabc
Sorry for the delay.

Linux Ubuntu 22.04, rnd64 0.42

./rnd64 -r 1k birds.txt
birds.txt generated
size: 1024 bytes
time: 0 s 2 ms

./rnd64 -r 2k птицы.txt
птицы.txt generated
size: 2048 bytes
time: 0 s 2 ms

./rnd64 -r 3k pájaros.txt
pájaros.txt generated
size: 3072 bytes
time: 0 s 2 ms

./rnd64 -r 4k vögel.txt
vögel.txt generated
size: 4096 bytes
time: 0 s 2 ms

Win 7 x64, rnd64 0.42
(terminal, codepage default)

rnd64 -r 1k birds.txt
birds.txt generated
size: 1024 bytes
time: 0 s 15 ms

rnd64 -r 2k птицы.txt
birds.txt generated
size: 2048 bytes
time: 0 s 15 ms

rnd64 -r 3k pájaros.txt
pßjaros.txt generated
size: 3072 bytes
time: 0 s 0 ms

rnd64 -r 4k vögel.txt
v÷gel.txt generated
size: 4096 bytes
time: 0 s 15 ms

птицы.txt auto-converted to birds.txt is amusing!

chcp 65001
(Unicode)
(generate files ...)
useless

chcp 1252
(Latin-1)
(generate files ...)
pájaros.txt and vögel.txt filenames display correctly.

Conclusion: Windows codepage madness.
Second conclusion: I don't like Windows.