| @node vasprintf |
| @subsection @code{vasprintf} |
| @findex vasprintf |
| |
| Documentation: |
| @itemize |
| @item |
| @ifinfo |
| @ref{Variable Arguments Output,,Variable Arguments Output Functions,libc}, |
| @end ifinfo |
| @ifnotinfo |
| @url{https://www.gnu.org/software/libc/manual/html_node/Variable-Arguments-Output.html}, |
| @end ifnotinfo |
| @item |
| @uref{https://www.kernel.org/doc/man-pages/online/pages/man3/vasprintf.3.html,,man vasprintf}. |
| @end itemize |
| |
| Gnulib module: vasprintf or vasprintf-posix |
| |
| Portability problems fixed by either Gnulib module @code{vasprintf} or @code{vasprintf-posix}: |
| @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 Gnulib module @code{vasprintf-posix}: |
| @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 5.0, OpenBSD 4.0, Solaris 11.4, Cygwin 1.5.x. |
| @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 6.1. |
| @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 can crash in out-of-memory conditions on some platforms: |
| FreeBSD 6.0, NetBSD 5.0. |
| @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 |