docs: document recently fixed glibc printf bug

[gnulib.git] / doc / posix-functions / vfprintf.texi

diff --git a/doc/posix-functions/vfprintf.texi b/doc/posix-functions/vfprintf.texi
index 9e54bf9..c6fab25 100644 (file)
--- a/doc/posix-functions/vfprintf.texi
+++ b/doc/posix-functions/vfprintf.texi
@@ -2,9 +2,9 @@
 @section @code{vfprintf}
 @findex vfprintf
 
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vfprintf.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vfprintf.html}
 
-Gnulib module: vfprintf-posix or stdio, sigpipe
+Gnulib module: vfprintf-posix or stdio, nonblocking, sigpipe
 
 Portability problems fixed by Gnulib module @code{vfprintf-posix}:
 @itemize
@@ -18,23 +18,23 @@ mingw, BeOS.
 @item
 printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
 incorrect result on some platforms:
-AIX 5.2, OSF/1 5.1, Solaris 10, mingw.
+AIX 5.2, OSF/1 5.1, Solaris 11 2010-11, mingw.
 @item
 This function does not support the @samp{a} and @samp{A} directives on some
 platforms:
-glibc-2.3.6, MacOS X 10.3, NetBSD 3.0, OpenBSD 4.0, AIX 5.2, HP-UX 11,
-IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw, BeOS.
+glibc-2.3.6, MacOS X 10.5, NetBSD 5.0, OpenBSD 4.0, AIX 5.2, HP-UX 11,
+IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.5.x, mingw, BeOS.
 @item
 This function does not support the @samp{F} directive on some platforms:
 NetBSD 3.0, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9,
 Cygwin 1.5.x, mingw, BeOS.
 @item
 This function does not support the @samp{ls} directive on some platforms:
-OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Haiku, Cygwin 1.5.x.
+OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Cygwin 1.5.x, Haiku.
 @item
 This function does not support precisions in the @samp{ls} directive correctly
 on some platforms:
-Solaris 10.
+Solaris 11 2010-11.
 @item
 This function does not support format directives that access arguments in an
 arbitrary order, such as @code{"%2$s"}, on some platforms:
@@ -49,14 +49,28 @@ HP-UX 10.20.
 @item
 printf @code{"%010f"} of NaN and Infinity yields an incorrect result (padded
 with zeroes) on some platforms:
-MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, AIX 5.2, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw.
+MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, AIX 5.2, IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.5.x, mingw.
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
+@item
+This function mishandles large floating point precisions
+(for example, formatting 1.0 with @samp{"%.511f"})
+on some platforms:
+Solaris 10.
 @item
 This function can crash in out-of-memory conditions on some platforms:
-MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0.
+MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
+@end itemize
+
+Portability problems fixed by Gnulib module @code{stdio} or @code{vfprintf-posix}, together with module @code{nonblocking}:
+@itemize
+@item
+When writing to a non-blocking pipe whose buffer is full, this function fails
+with @code{errno} being set to @code{ENOSPC} instead of @code{EAGAIN} on some
+platforms:
+mingw.
 @end itemize
 
 Portability problems fixed by Gnulib module @code{stdio} or @code{vfprintf-posix}, together with module @code{sigpipe}:
@@ -69,4 +83,8 @@ mingw.
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+Attempting to write to a read-only stream fails with @code{EOF} but
+does not set the error flag for @code{ferror} on some platforms:
+glibc 2.13.
 @end itemize