@node read @section @code{read} @findex read POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/read.html} Gnulib module: stdio, nonblocking Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}: @itemize @item When reading from a non-blocking pipe whose buffer is empty, this function fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on some platforms: mingw. @end itemize Portability problems not fixed by Gnulib: @itemize @end itemize