@node fputc
@section @code{fputc}
@findex fputc

POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fputc.html}

Gnulib module: stdio, sigpipe

Portability problems fixed by Gnulib:
@itemize
@item
When writing to a pipe with no readers, this function fails, instead of
obeying the current @code{SIGPIPE} handler, on some platforms:
mingw.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
On Windows platforms (excluding Cygwin), this function does not set @code{errno}
upon failure.
@end itemize
