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3.26 iswupper—uppercase wide character test

Synopsis

#include <wctype.h>
int iswupper(wint_t c);

Description
iswupper is a function which classifies wide-character values that have uppercase translations.


Returns
iswupper returns non-zero if c is a uppercase wide character.


Portability
iswupper is C99.

No supporting OS subroutines are required.