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towctrans
POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/towctrans.html
Gnulib module: towctrans
Portability problems fixed by Gnulib:
Portability problems not fixed by Gnulib:
wchar_t
is a 16-bit type and therefore cannot
accommodate all Unicode characters.
However, the Gnulib function c32_apply_mapping
, provided by Gnulib
module c32_apply_mapping
, operates on 32-bit wide characters and
therefore does not have this limitation.