iswalpha(3) Library Functions Manual iswalpha(3) iswalpha - , LIBRARY Standard C library (libc, -lc) #include int iswalpha(wint_t wc); iswalpha() isalpha(3), . , wc , <>. <> <> , , <> <>. <>, <> <>. <>, <> <> <>. <>, <> <>. <> <>. <> <> <>. The wide-character class "alpha" always contains at least the letters 'A' to 'Z' and 'a' to 'z'. iswalpha() , wc , <>. 0. attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |iswalpha() | | MT-Safe locale | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. POSIX.1-2001, C99. iswalpha() LC_CTYPE . . isalpha(3), iswctype(3) Azamat Hackimov , Dmitriy S. Seregin , Yuri Kozlov ; GNU 3 , . . , , . Linux man-pages 6.06 31 2023 . iswalpha(3)