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#if 0
#include <wctype.h>
#include <wchar.h>
#include "_assert.h"
/** test whether a wide character is an uppercase letter **/
int iswupper(wint_t wc)
{
ASSERT_REPRESENTABLE(wc, WCHAR_MIN, WCHAR_MAX, "wchar_t", WEOF);
wctype_t upper = wctype("upper");
return iswctype(wc, upper);
}
/***
The fn(iswupper) function tests whether arg(wc) is a wide character in the class
cclass(upper) in the current locale.
***/
/* RETURN(NZ): arg(wc) is an uppercase letter */
/* RETURN(0): arg(wc) is not an uppercase letter */
/* UNSPECIFIED: - */
/* IMPLEMENTATION: - */
/* LOCALE: LC_CTYPE */
/*
STDC(199409)
*/
#endif
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