@node uchar.h @section @file{uchar.h} Defines the types @code{char16_t}, @code{char32_t} and declares the functions @code{mbrtoc16}, @code{c16rtomb}, @code{mbrtoc32}, @code{c32rtomb}. Gnulib module: uchar Portability problems fixed by Gnulib: @itemize @item This header file is missing on many non-glibc platforms: glibc 2.15, macOS 11.1, FreeBSD 6.4, NetBSD 9.0, OpenBSD 6.7, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.3, Cygwin, mingw, MSVC 9. @item This file is not self-contained on some platforms: @c https://dev.haiku-os.org/ticket/17040 Haiku. @item This file produces compilation errors in C++ mode on some platforms: AIX 7.2 with xlclang++. @end itemize Portability problems not fixed by Gnulib: @itemize @end itemize