Hash :
8fb59b8f
Author :
Date :
2017-07-06T01:10:39
doc: Update for MSVC 14. * doc/posix-headers/*.texi: Add info about MSVC 14. * doc/posix-functions/*.texi: Likewise. * doc/pastposix-functions/*.texi: Likewise. * doc/glibc-headers/*.texi: Likewise. * doc/glibc-functions/*.texi: Likewise.
@node getchar
@section @code{getchar}
@findex getchar
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/getchar.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, MSVC 14.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
C99 and POSIX.1-2001 and later require end-of-file to be sticky, that
is, they require this function to act as if it reads end-of-file if
@code{feof} would return nonzero. However, on some systems this
function attempts to read from the underlying file descriptor even if
the stream's end-of-file indicator is set. These systems include
glibc and default Solaris.
@item
On Windows platforms (excluding Cygwin), this function does not set @code{errno}
upon failure.
@end itemize