kc3-lang/gnulib/doc/glibc-functions/closefrom.texi

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• Hash : e253528c
  Author :
  Date : 2024-06-17T13:50:43
  

  doc: Update for macOS 12, 13, 14.
  
  * doc/posix-headers/*.texi: Update.
  * doc/glibc-headers/*.texi: Update.
  * doc/posix-functions/*.texi: Likewise.
  * doc/pastposix-functions/*.texi: Likewise.
  * doc/glibc-functions/*.texi: Likewise.
  * m4/canonicalize.m4 (gl_FUNC_REALPATH_WORKS): Update cross-compilation
  guess.
  * m4/printf.m4 (gl_PRINTF_DIRECTIVE_A): Update comments.
  * m4/readlinkat.m4 (gl_FUNC_READLINKAT): Likewise.
  

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• doc/glibc-functions/closefrom.texi

• @node closefrom
  @subsection @code{closefrom}
  @findex closefrom
  
  Documentation:@*
  @ifinfo
  @ref{Opening and Closing Files,,Opening and Closing Files,libc}
  @end ifinfo
  @ifnotinfo
  @url{https://www.gnu.org/software/libc/manual/html_node/Opening-and-Closing-Files.html}
  @end ifnotinfo
  
  Gnulib module: ---
  
  Portability problems fixed by Gnulib:
  @itemize
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  This function is missing on some platforms:
  glibc 2.33, macOS 14, FreeBSD 7.2, Minix 3.3.0, AIX 7.1, HP-UX 11.31, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
  @end itemize
  
  Note (quoted from
  @uref{https://www.kernel.org/doc/man-pages/online/pages/man3/close.3p.html,,man close}):
  ``The [POSIX] standard developers rejected a proposal to add
  @code{closefrom()} to the [POSIX] standard.  Because the standard
  permits implementations to use inherited file descriptors as a means of
  providing a conforming environment for the child process, it is not
  possible to standardize an interface that closes arbitrary file
  descriptors above a certain value while still guaranteeing a conforming
  environment.''
  

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