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

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• Hash : 891708e6
  Author :
  Date : 2023-03-24T11:28:38
  

  vasprintf-gnu: New module.
  
  * m4/vasprintf-posix.m4 (gl_FUNC_VASPRINTF_IS_POSIX): New macro,
  extracted from gl_FUNC_VASPRINTF_POSIX.
  (gl_FUNC_VASPRINTF_POSIX): Require it. Invoke
  gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS.
  * m4/vasprintf-gnu.m4: New file, based on m4/vasprintf-posix.m4.
  * modules/vasprintf-gnu: New file, based on modules/vasnprintf-gnu.
  * doc/glibc-functions/vasprintf.texi: Mention the new module.
  * doc/glibc-functions/asprintf.texi: Likewise.
  

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• doc/glibc-functions/asprintf.texi

• @node asprintf
  @subsection @code{asprintf}
  @findex asprintf
  
  LSB specification:@* @url{https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-asprintf.html}
  
  Documentation:
  @itemize
  @item
  @ifinfo
  @ref{Dynamic Output,,Dynamically Allocating Formatted Output,libc},
  @end ifinfo
  @ifnotinfo
  @url{https://www.gnu.org/software/libc/manual/html_node/Dynamic-Output.html},
  @end ifnotinfo
  @item
  @uref{https://www.kernel.org/doc/man-pages/online/pages/man3/asprintf.3.html,,man asprintf}.
  @end itemize
  
  Gnulib module: vasprintf or vasprintf-posix or vasprintf-gnu
  
  Portability problems fixed by either Gnulib module @code{vasprintf} or @code{vasprintf-posix} or @code{vasprintf-gnu}:
  @itemize
  @item
  This function is missing on some platforms:
  AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw, MSVC 14.
  @end itemize
  
  Portability problems fixed by either Gnulib module @code{vasprintf-posix} or @code{vasprintf-gnu}:
  @itemize
  @item
  This function does not support size specifiers as in C99 (@code{hh}, @code{ll},
  @code{j}, @code{t}, @code{z}) on some platforms:
  Cygwin 1.5.24.
  @item
  printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
  incorrect result on some platforms:
  Solaris 11.0.
  @item
  This function does not support the @samp{a} and @samp{A} directives on some
  platforms:
  glibc-2.3.6, Mac OS X 10.5, NetBSD 9.0, OpenBSD 4.0, Solaris 11.4, Cygwin 1.5.x.
  @item
  This function does not support the @samp{b} directive, required by ISO C23,
  on some platforms:
  glibc 2.34, musl libc, macOS 12.5, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2,
  AIX 7.2, Solaris 11.4, Cygwin 2.9.0.
  @item
  This function does not support the @samp{F} directive on some platforms:
  NetBSD 3.0, Cygwin 1.5.x.
  @item
  This function does not support the @samp{ls} directive on some platforms:
  OpenBSD 4.0, Cygwin 1.5.x, Haiku.
  @item
  This function does not support precisions in the @samp{ls} directive correctly
  on some platforms:
  Solaris 11.4.
  @item
  This function does not support format directives that access arguments in an
  arbitrary order, such as @code{"%2$s"}, on some platforms:
  NetBSD 3.0.
  @item
  This function doesn't support the @code{'} flag on some platforms:
  NetBSD 3.0, Cygwin 1.5.24.
  @item
  This function does not round the argument of the @samp{a} directive correctly
  on some platforms:
  Mac OS X 10.12, FreeBSD 13.0.
  @item
  printf @code{"%010f"} of NaN and Infinity yields an incorrect result (padded
  with zeroes) on some platforms:
  Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, Solaris 11.0, Cygwin 1.5.x.
  @item
  This function produces wrong output for the @samp{lc} directive with a NUL
  wide character argument on some platforms:
  glibc 2.35, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2, Solaris 11.4, and others.
  @item
  This function can crash in out-of-memory conditions on some platforms:
  FreeBSD 13.0, NetBSD 5.0.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{vasprintf-gnu}:
  @itemize
  @item
  This function does not support the @samp{B} directive on some platforms:
  glibc 2.34, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2, Solaris 11.4, and others.
  @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.
  @end itemize
  

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