iswlower(3) Library Functions Manual iswlower(3) iswlower - , LIBRARY Standard C library (libc, -lc) #include int iswlower(wint_t wc); iswlower() islower(3), . , wc , <>. <> <> , , <>, <> <>. <>, <> <>. <>, <> <> <>. <>, <> <>. <>, <> <>. <> , , wc, towlower(wc) towupper(wc). The wide-character class "lower" always contains at least the letters 'a' to 'z'. iswlower() , wc , <>. 0. attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |iswlower() | | MT-Safe locale | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. POSIX.1-2001, C99. iswlower() LC_CTYPE . This function is not very appropriate for dealing with Unicode characters, because Unicode knows about three cases: upper, lower, and title case. . islower(3), iswctype(3), towlower(3) Azamat Hackimov , Dmitriy S. Seregin , Yuri Kozlov ; GNU 3 , . . , , . Linux man-pages 6.06 31 2023 . iswlower(3)