kc3-lang/gnulib/doc/posix-headers/stdbit.texi

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• doc/posix-headers/stdbit.texi

• @node stdbit.h
  @section @file{stdbit.h}
  
  POSIX :@* Not in POSIX yet, but we expect it will be.
  ISO C23 (latest free draft
  @url{https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3220.pdf})
  section 7.18.
  
  Gnulib module: stdbit
  @mindex stdbit
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This header file is missing on many non-C23 platforms:
  glibc 2.38, macOS 14, FreeBSD 14.0, NetBSD 10.0, OpenBSD 7.5, AIX 7.3.1, HP-UX 11.31, Solaris 11.4, Cygwin 3.5.3, mingw, MSVC 17, Android 15.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  On older non-C23 platforms lacking @code{typeof} or equivalent, a call
  to @code{stdc_bit_floor} and @code{stdc_bit_ceil} may yield a type
  that is wider than its argument.  Although C23 seems to allow this,
  it differs from GNU behavior.
  
  @item
  On non-C23 platforms, type-generic functions apply portably only to
  the standard unsigned integer types specified by C17 or earlier.
  @end itemize
  

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