kc3-lang/gnulib/doc/posix-functions/dprintf.texi

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  Date : 2024-10-27T17:01:29
  

  doc: Add a module index.
  
  * doc/Makefile (undocumented-modules.texi): New rule.
  (%.info, %.html, %.dvi, %.pdf): Depend on undocumented-modules.texi.
  (mostlyclean): Remove also *.m and *.tmp.
  (force): New rule.
  * doc/*.texi: Add module index entries.
  * doc/*/*.texi: Likewise.
  

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• doc/posix-functions/dprintf.texi

• @node dprintf
  @subsection @code{dprintf}
  @findex dprintf
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/dprintf.html}
  
  Gnulib module: dprintf or dprintf-posix or dprintf-gnu
  @mindex dprintf
  @mindex dprintf-posix
  @mindex dprintf-gnu
  
  Portability problems fixed by either Gnulib module @code{dprintf} or @code{dprintf-posix} or @code{dprintf-gnu}:
  @itemize
  @item
  This function is missing on many non-glibc platforms:
  Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 11.3, Cygwin 1.5.x, mingw, MSVC 14.
  @end itemize
  
  Portability problems fixed by either Gnulib module @code{dprintf-posix} or @code{dprintf-gnu}:
  @itemize
  @item
  This function does not support size specifiers as in C23 (@code{w8},
  @code{w16}, @code{w32}, @code{w64}, @code{wf8}, @code{wf16}, @code{wf32},
  @code{wf64}) on some platforms:
  glibc 2.37, musl libc, macOS 14, FreeBSD 13.2, NetBSD 10.0, OpenBSD 7.5, AIX 7.3, Solaris 11.4, Cygwin 3.5.3, mingw, MSVC, Android 9.0.
  @item
  printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
  incorrect result on some platforms:
  AIX 7.3, Solaris 11.4.
  @item
  This function does not support the @samp{a} and @samp{A} directives on some
  platforms:
  Solaris 11.4.
  @item
  This function does not support the @samp{b} directive, required by ISO C23,
  on some platforms:
  glibc 2.34, musl libc, macOS 14, FreeBSD 13.2, NetBSD 10.0, OpenBSD 7.5,
  AIX 7.3, HP-UX 11, Solaris 11.4, Cygwin 3.5.3, mingw, MSVC 14, Android 9.0.
  @item
  This function does not support precisions in the @samp{ls} directive correctly
  on some platforms:
  Solaris 11.4.
  @item
  This function does not round the argument of the @samp{a} directive correctly
  on some platforms:
  macOS 14, FreeBSD 14.0, NetBSD 10.0, OpenBSD 7.5, AIX 7.3, Solaris 11.4.
  @item
  printf @code{"%010f"} of NaN and Infinity yields an incorrect result (padded
  with zeroes, or wrong capitalization) on some platforms:
  AIX 7.3, Solaris 11.4.
  @item
  printf @code{"%#.0x"} or @code{"%#.0X"} with a zero argument yields an
  incorrect result (non-empty) on some platforms:
  Mac OS X 10.6.
  @item
  This function does not support precisions larger than 512 or 1024 in integer,
  floating-point and pointer output on some platforms:
  AIX 7.1.
  @item
  This function produces wrong output for the @samp{lc} directive with a NUL
  wide character argument on some platforms:
  musl libc 1.2.4.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{dprintf-gnu}:
  @itemize
  @item
  This function does not support the @samp{B} directive on some platforms:
  glibc 2.34, musl libc, macOS 14, FreeBSD 13.2, NetBSD 10.0, OpenBSD 7.5, AIX 7.3, Solaris 11.4, Cygwin 3.5.3, mingw, MSVC, Android 9.0.
  @end itemize
  
  @mindex printf-with-n-directive
  Portability problems fixed by either Gnulib module @code{dprintf-posix} or @code{dprintf-gnu}
  and additionally the Gnulib module @code{printf-with-n-directive}:
  @itemize
  @item
  This function does not support the @samp{n} directive on some platforms:
  glibc when used with @code{_FORTIFY_SOURCE >= 2} (set by default on Ubuntu),
  macOS 14, OpenBSD, Android.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  The @code{%m} directive is not portable, use @code{%s} mapped to an
  argument of @code{strerror(errno)} (or a version of @code{strerror_r})
  instead.
  @item
  Formatting noncanonical @samp{long double} numbers produces
  nonmeaningful results on some platforms:
  glibc and others, on x86, x86_64, IA-64 CPUs.
  @item
  When formatting an integer with grouping flag, this function inserts thousands
  separators even in the "C" locale on some platforms:
  NetBSD 5.1.
  @item
  On some platforms, this function does not set @code{errno} or the
  stream error indicator on attempts to write to a read-only stream:
  Cygwin 1.7.9.
  @end itemize
  

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