@node wcsrtombs @section @code{wcsrtombs} @findex wcsrtombs POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/wcsrtombs.html} Gnulib module: wcsrtombs Portability problems fixed by Gnulib: @itemize @item This function is missing on some platforms: Minix 3.1.8, HP-UX 11.00, IRIX 6.5, mingw. @item This function does not ignore the length argument if the destination argument is NULL on some platforms: mingw. @item This function updates the source pointer also if the destination argument is NULL on some platforms: HP-UX 11. @end itemize Portability problems not fixed by Gnulib: @itemize @item On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot accommodate all Unicode characters. However, the Gnulib function @code{c32srtombs}, provided by Gnulib module @code{c32srtombs}, operates on 32-bit wide characters and therefore does not have this limitation. @end itemize