libc.info: iswprint

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`iswprint'--printable wide-character test

*Synopsis*
     #include <wctype.h>
     int iswprint(wint_t C);
   *Description*
`iswprint' is a function which classifies wide-character values that
are printable.
*Returns*
`iswprint' returns non-zero if C is a printable wide-character.
*Portability*
`iswprint' is C99.
   No supporting OS subroutines are required.