@node iswlower @section @code{iswlower} @findex iswlower POSIX specification: @url{http://www.opengroup.org/susv3xsh/iswlower.html} Gnulib module: wctype Portability problems fixed by Gnulib: @itemize @item This function is missing on some platforms: IRIX 5.3, Solaris 2.5.1. @item This function returns 0 for all possible arguments on some platforms: Linux libc5. @end itemize Portability problems not fixed by Gnulib: @itemize @item On Windows platforms, @code{wchar_t} is a 16-bit type and therefore cannot accommodate all Unicode characters. @end itemize