@INC = '../lib';
}
-print "1..23\n";
+print "1..28\n";
$TST = 'tst';
$Is_Dosish = ($^O eq 'MSWin32' or $^O eq 'NetWare' or $^O eq 'dos' or
- $^O eq 'os2' or $^O eq 'mint' or $^O eq 'cygwin');
+ $^O eq 'os2' or $^O eq 'mint' or $^O eq 'cygwin' or
+ $^O =~ /^uwin/);
open($TST, 'harness') || (die "Can't open harness");
binmode $TST if $Is_Dosish;
# something else. ftell() on pipes, fifos, and sockets is defined to
# return -1.
+my $written = "tell_write.txt";
+
+END { 1 while unlink($written) }
+
+close($tst);
+open($tst,">$written") || die "Cannot open $written:$!";
+binmode $tst if $Is_Dosish;
+
+if (tell($tst) == 0) { print "ok 24\n"; } else { print "not ok 24\n"; }
+
+print $tst "fred\n";
+
+if (tell($tst) == 5) { print "ok 25\n"; } else { print "not ok 25\n"; }
+
+print $tst "more\n";
+
+if (tell($tst) == 10) { print "ok 26\n"; } else { print "not ok 26\n"; }
+
+close($tst);
+
+open($tst,"+>>$written") || die "Cannot open $written:$!";
+binmode $tst if $Is_Dosish;
+
+if (0)
+{
+ # :stdio does not pass these so ignore them for now
+
+if (tell($tst) == 0) { print "ok 27\n"; } else { print "not ok 27\n"; }
+
+$line = <$tst>;
+
+if ($line eq "fred\n") { print "ok 29\n"; } else { print "not ok 29\n"; }
+
+if (tell($tst) == 5) { print "ok 30\n"; } else { print "not ok 30\n"; }
+
+}
+
+print $tst "xxxx\n";
+
+if (tell($tst) == 15 ||
+ tell($tst) == 5) # unset PERLIO or PERLIO=stdio (e.g. HP-UX, Solaris)
+{ print "ok 27\n"; } else { print "not ok 27\n"; }
+
+close($tst);
+
+open($tst,">$written") || die "Cannot open $written:$!";
+print $tst "foobar";
+close $tst;
+open($tst,">>$written") || die "Cannot open $written:$!";
+
+# This test makes a questionable assumption that the file pointer will
+# be at eof after opening a file but before seeking, reading, or writing.
+# Only known failure is on cygwin.
+my $todo = $^O eq "cygwin" && &PerlIO::get_layers($tst) eq 'stdio'
+ && ' # TODO: file pointer not at eof';
+
+if (tell($tst) == 6)
+{ print "ok 28$todo\n"; } else { print "not ok 28$todo\n"; }
+close $tst;
+