iswupper(3) Library Functions Manual iswupper(3) iswupper - , C (libc, -lc) #include int iswupper(wint_t wc); iswupper() isupper(3), . , wc , <>. <> <> , , <>, <> <>. <>, <> <>. <>, <> <> <>. <>, <> <>. <>, <> <>. <> , , wc, towupper(wc) towlower(wc). The wide-character class "upper" always contains at least the letters 'A' to 'Z'. iswupper() , wc , <>. 0. attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |iswupper() | | MT-Safe locale | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. POSIX.1-2001, C99. iswupper() LC_CTYPE . , : , . isupper(3), iswctype(3), towupper(3) () Azamat Hackimov , Dmitriy S. Seregin , Yuri Kozlov , Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux 6.9.1 2 2024 . iswupper(3)