10.72.35 wctype ¶
POSIX specification:
https://pubs.opengroup.org/onlinepubs/9799919799/functions/wctype.html
Gnulib module: wctype
Portability problems fixed by Gnulib:
- This function is missing on some platforms:
Minix 3.1.8, MSVC 9.
- This function is declared in
<wchar.h>, not in <wctype.h>, on
some platforms:
HP-UX 11.00.
- This function does not support the
"blank" character class
on some platforms:
mingw.
- The object returned by this function for the
"blank" character class
is inconsistent with the iswblank and isblank functions
on some platforms:
MSVC 14.
- The object returned by this function for the
"punct" character class
is inconsistent with the ispunct function on some platforms:
Android 11.
Portability problems not fixed by Gnulib:
- On Windows and 32-bit AIX platforms,
wchar_t is a 16-bit type and therefore cannot
accommodate all Unicode characters.
However, the Gnulib function c32_get_type_test, provided by Gnulib
module c32_get_type_test, operates on 32-bit wide characters and
therefore does not have this limitation.