#!./perl
-print "1..30\n";
+print "1..31\n";
+
+my $Is_EBCDIC = (ord('A') == 193) ? 1 : 0;
print vec($foo,0,1) == 0 ? "ok 1\n" : "not ok 1\n";
print length($foo) == 0 ? "ok 2\n" : "not ok 2\n";
print "not " if defined $x or $@ !~ /^Illegal number of bits in vec/;
print "ok 21\n";
$x = eval { vec($foo, -1, 4) = 2 };
-print "not " if defined $x or $@ !~ /^Assigning to negative offset in vec/;
+print "not " if defined $x or $@ !~ /^Negative offset to vec in lvalue context/;
print "ok 22\n";
print "not " if vec('abcd', 7, 8);
print "ok 23\n";
eval { vec($foo, 1, 8) = 13 };
print "not " if $@;
print "ok 26\n";
-print "not " if $foo ne "\xc4\x0d\xc3\xbf\xc3\xbe";
-print "ok 27\n";
+if ($Is_EBCDIC) {
+ print "not " if $foo ne "\x8c\x0d\xff\x8a\x69";
+ print "ok 27\n";
+}
+else {
+ print "not " if $foo ne "\xc4\x0d\xc3\xbf\xc3\xbe";
+ print "ok 27\n";
+}
$foo = "\x{100}" . "\xff\xfe";
$x = substr $foo, 1;
vec($x, 2, 4) = 7;
vec(substr($foo, 1,3), 5, 4) = 3;
print "not " if $foo ne "\x61\x62\x63\x34\x65\x66";
print "ok 30\n";
+
+# A variation of [perl #20933]
+{
+ my $s = "";
+ vec($s, 0, 1) = 0;
+ vec($s, 1, 1) = 1;
+ my @r;
+ $r[$_] = \ vec $s, $_, 1 for (0, 1);
+ print "not " if (${ $r[0] } != 0 || ${ $r[1] } != 1);
+ print "ok 31\n";
+}