nonblocking: Add tests for sockets.

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

diff --git a/doc/posix-functions/vfprintf.texi b/doc/posix-functions/vfprintf.texi
index 179e67a..b40a334 100644 (file)
--- a/doc/posix-functions/vfprintf.texi
+++ b/doc/posix-functions/vfprintf.texi
@@ -4,7 +4,7 @@
 
 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
@@ -55,10 +55,24 @@ This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
 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 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}:
 @itemize
 @item