[perl5.git] / t / op / cmp.t

#!./perl

BEGIN {
       chdir 't' if -d 't';
       @INC = '../lib';
}

# 2s complement assumption. Won't break test, just makes the internals of
# the SVs less interesting if were not on 2s complement system.
my $uv_max = ~0;
my $uv_maxm1 = ~0 ^ 1;
my $uv_big = $uv_max;
$uv_big = ($uv_big - 20000) | 1;
my ($iv0, $iv1, $ivm1, $iv_min, $iv_max, $iv_big, $iv_small);
$iv_max = $uv_max; # Do copy, *then* divide
$iv_max /= 2;
$iv_min = $iv_max;
{
  use integer;
  $iv0 = 2 - 2;
  $iv1 = 3 - 2;
  $ivm1 = 2 - 3;
  $iv_max -= 1;
  $iv_min += 0;
  $iv_big = $iv_max - 3;
  $iv_small = $iv_min + 2;
}
my $uv_bigi = $iv_big;
$uv_bigi |= 0x0;

my @array = qw(perl rules);

my @raw, @upgraded, @utf8;
foreach ("\x{1F4A9}", chr(163), 'N') {
    push @raw, $_;
    my $temp = $_ . chr 256;
    chop $temp;
    push @upgraded, $temp;
    my $utf8 = $_;
    next if utf8::upgrade($utf8) == length $_;
    utf8::encode($utf8);
    push @utf8, $utf8;
}

# Seems one needs to perform the maths on 'Inf' to get the NV correctly primed.
@FOO = ('s', 'N/A', 'a', 'NaN', -1, undef, 0, 1, 3.14, 1e37, 0.632120558, -.5,
	'Inf'+1, '-Inf'-1, 0x0, 0x1, 0x5, 0xFFFFFFFF, $uv_max, $uv_maxm1,
	$uv_big, $uv_bigi, $iv0, $iv1, $ivm1, $iv_min, $iv_max, $iv_big,
	$iv_small, \$array[0], \$array[0], \$array[1], \$^X, @raw, @upgraded,
	@utf8);

$expect = 7 * ($#FOO+2) * ($#FOO+1) + 6 * @raw + 6 * @utf8;
print "1..$expect\n";

my $bad_NaN = 0;

{
    # gcc's -ffast-math option may stop NaNs working correctly
    use Config;
    my $ccflags = $Config{ccflags} // '';
    $bad_NaN = 1 if $ccflags =~ /-ffast-math\b/;
}

sub nok ($$$$$$$$) {
  my ($test, $left, $threeway, $right, $result, $i, $j, $boolean) = @_;
  $result = defined $result ? "'$result'" : 'undef';
  if ($bad_NaN && ($left eq 'NaN' || $right eq 'NaN')) {
    print "ok $test # skipping failed NaN test under -ffast-math\n";
  }
  else {
    print "not ok $test # ($left $threeway $right) gives: $result \$i=$i \$j=$j, $boolean disagrees\n";
  }
}

my $ok = 0;
for my $i (0..$#FOO) {
    for my $j ($i..$#FOO) {
	$ok++;
	# Comparison routines may convert these internally, which would change
	# what is used to determine the comparison on later runs. Hence copy
	my ($i1, $i2, $i3, $i4, $i5, $i6, $i7, $i8, $i9, $i10,
	    $i11, $i12, $i13, $i14, $i15, $i16, $i17) =
	  ($FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i],
	   $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i],
	   $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i]);
	my ($j1, $j2, $j3, $j4, $j5, $j6, $j7, $j8, $j9, $j10,
	    $j11, $j12, $j13, $j14, $j15, $j16, $j17) =
	  ($FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j],
	   $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j],
	   $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j]);
	my $cmp = $i1 <=> $j1;
	if (!defined($cmp) ? !($i2 < $j2)
	    : ($cmp == -1 && $i2 < $j2 ||
	       $cmp == 0  && !($i2 < $j2) ||
	       $cmp == 1  && !($i2 < $j2)))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<');
	}
	$ok++;
	if (!defined($cmp) ? !($i4 == $j4)
	    : ($cmp == -1 && !($i4 == $j4) ||
	       $cmp == 0  && $i4 == $j4 ||
	       $cmp == 1  && !($i4 == $j4)))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '==');
	}
	$ok++;
	if (!defined($cmp) ? !($i5 > $j5)
	    : ($cmp == -1 && !($i5 > $j5) ||
	       $cmp == 0  && !($i5 > $j5) ||
	       $cmp == 1  && ($i5 > $j5)))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '>');
	}
	$ok++;
	if (!defined($cmp) ? !($i6 >= $j6)
	    : ($cmp == -1 && !($i6 >= $j6) ||
	       $cmp == 0  && $i6 >= $j6 ||
	       $cmp == 1  && $i6 >= $j6))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '>=');
	}
	$ok++;
	# OK, so the docs are wrong it seems. NaN != NaN
	if (!defined($cmp) ? ($i7 != $j7)
	    : ($cmp == -1 && $i7 != $j7 ||
	       $cmp == 0  && !($i7 != $j7) ||
	       $cmp == 1  && $i7 != $j7))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '!=');
	}
	$ok++;
	if (!defined($cmp) ? !($i8 <= $j8)
	    : ($cmp == -1 && $i8 <= $j8 ||
	       $cmp == 0  && $i8 <= $j8 ||
	       $cmp == 1  && !($i8 <= $j8)))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<=');
	}
	$ok++;
        my $pmc =  $j16 <=> $i16; # cmp it in reverse
        # Should give -ve of other answer, or undef for NaNs
        # a + -a should be zero. not zero is truth. which avoids using ==
	if (defined($cmp) ? !($cmp + $pmc) : !defined $pmc)
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<=> transposed');
	}


	# String comparisons
	$ok++;
	$cmp = $i9 cmp $j9;
	if ($cmp == -1 && $i10 lt $j10 ||
	    $cmp == 0  && !($i10 lt $j10) ||
	    $cmp == 1  && !($i10 lt $j10))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'lt');
	}
	$ok++;
	if ($cmp == -1 && !($i11 eq $j11) ||
	    $cmp == 0  && ($i11 eq $j11) ||
	    $cmp == 1  && !($i11 eq $j11))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'eq');
	}
	$ok++;
	if ($cmp == -1 && !($i12 gt $j12) ||
	    $cmp == 0  && !($i12 gt $j12) ||
	    $cmp == 1  && ($i12 gt $j12))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'gt');
	}
	$ok++;
	if ($cmp == -1 && $i13 le $j13 ||
	    $cmp == 0  && ($i13 le $j13) ||
	    $cmp == 1  && !($i13 le $j13))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'le');
	}
	$ok++;
	if ($cmp == -1 && ($i14 ne $j14) ||
	    $cmp == 0  && !($i14 ne $j14) ||
	    $cmp == 1  && ($i14 ne $j14))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'ne');
	}
	$ok++;
	if ($cmp == -1 && !($i15 ge $j15) ||
	    $cmp == 0  && ($i15 ge $j15) ||
	    $cmp == 1  && ($i15 ge $j15))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'ge');
	}
	$ok++;
        $pmc =  $j17 cmp $i17; # cmp it in reverse
        # Should give -ve of other answer
        # a + -a should be zero. not zero is truth. which avoids using ==
	if (!($cmp + $pmc))
	{
	    print "ok $ok\n";
	}
	else {
	    nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'cmp transposed');
	}
    }
}

# We know the answers for these. We can rely on the consistency checks above
# to test the other string comparisons.

while (my ($i, $v) = each @raw) {
    # Copy, to avoid any inadvertent conversion
    my ($raw, $cooked, $not);
    $raw = $v;
    $cooked = $upgraded[$i];
    $not = $raw eq $cooked ? '' : 'not ';
    printf "%sok %d # eq, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $v;
    $cooked = $upgraded[$i];
    $not = $raw ne $cooked ? 'not ' : '';
    printf "%sok %d # ne, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $v;
    $cooked = $upgraded[$i];
    $not = (($raw cmp $cooked) == 0) ? '' : 'not ';
    printf "%sok %d # cmp, chr %d\n", $not, ++$ok, ord $raw;

    # And now, transposed.
    $raw = $v;
    $cooked = $upgraded[$i];
    $not = $cooked eq $raw ? '' : 'not ';
    printf "%sok %d # eq, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $v;
    $cooked = $upgraded[$i];
    $not = $cooked ne $raw ? 'not ' : '';
    printf "%sok %d # ne, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $v;
    $cooked = $upgraded[$i];
    $not = (($cooked cmp $raw) == 0) ? '' : 'not ';
    printf "%sok %d # cmp, chr %d\n", $not, ++$ok, ord $raw;
}

while (my ($i, $v) = each @utf8) {
    # Copy, to avoid any inadvertent conversion
    my ($raw, $cooked, $not);
    $raw = $raw[$i];
    $cooked = $v;
    $not = $raw eq $cooked ? 'not ' : '';
    printf "%sok %d # eq vs octets, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $raw[$i];
    $cooked = $v;
    $not = $raw ne $cooked ? '' : 'not ';
    printf "%sok %d # ne vs octets, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $raw[$i];
    $cooked = $v;
    $not = (($raw cmp $cooked) == 0) ? 'not ' : '';
    printf "%sok %d # cmp vs octects, chr %d\n", $not, ++$ok, ord $raw;

    # And now, transposed.
    $raw = $raw[$i];
    $cooked = $v;
    $not = $cooked eq $raw ? 'not ' : '';
    printf "%sok %d # eq vs octets, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $raw[$i];
    $cooked = $v;
    $not = $cooked ne $raw? '' : 'not ';
    printf "%sok %d # ne vs octets, chr %d\n", $not, ++$ok, ord $raw;

    $raw = $raw[$i];
    $cooked = $v;
    $not = (($cooked cmp $raw) == 0) ? 'not ' : '';
    printf "%sok %d # cmp vs octects, chr %d\n", $not, ++$ok, ord $raw;
}
Commit	Line	Data
44a8e56a	1	#!./perl
44a8e56a	2
28e5dec8 JH	3	BEGIN {
	4	chdir 't' if -d 't';
	5	@INC = '../lib';
	6	}
	7
	8	# 2s complement assumption. Won't break test, just makes the internals of
	9	# the SVs less interesting if were not on 2s complement system.
	10	my $uv_max = ~0;
	11	my $uv_maxm1 = ~0 ^ 1;
	12	my $uv_big = $uv_max;
	13	$uv_big = ($uv_big - 20000) \| 1;
	14	my ($iv0, $iv1, $ivm1, $iv_min, $iv_max, $iv_big, $iv_small);
	15	$iv_max = $uv_max; # Do copy, then divide
	16	$iv_max /= 2;
	17	$iv_min = $iv_max;
	18	{
	19	use integer;
	20	$iv0 = 2 - 2;
	21	$iv1 = 3 - 2;
	22	$ivm1 = 2 - 3;
	23	$iv_max -= 1;
	24	$iv_min += 0;
	25	$iv_big = $iv_max - 3;
	26	$iv_small = $iv_min + 2;
	27	}
	28	my $uv_bigi = $iv_big;
	29	$uv_bigi \|= 0x0;
	30
e61d22ef NC	31	my @array = qw(perl rules);
e61d22ef NC	32
08a6f934 NC	33	my @raw, @upgraded, @utf8;
	34	foreach ("\x{1F4A9}", chr(163), 'N') {
	35	push @raw, $_;
	36	my $temp = $_ . chr 256;
	37	chop $temp;
	38	push @upgraded, $temp;
	39	my $utf8 = $_;
	40	next if utf8::upgrade($utf8) == length $_;
	41	utf8::encode($utf8);
	42	push @utf8, $utf8;
	43	}
	44
28e5dec8 JH	45	# Seems one needs to perform the maths on 'Inf' to get the NV correctly primed.
	46	@FOO = ('s', 'N/A', 'a', 'NaN', -1, undef, 0, 1, 3.14, 1e37, 0.632120558, -.5,
	47	'Inf'+1, '-Inf'-1, 0x0, 0x1, 0x5, 0xFFFFFFFF, $uv_max, $uv_maxm1,
	48	$uv_big, $uv_bigi, $iv0, $iv1, $ivm1, $iv_min, $iv_max, $iv_big,
08a6f934 NC	49	$iv_small, \$array[0], \$array[0], \$array[1], \$^X, @raw, @upgraded,
08a6f934 NC	50	@utf8);
44a8e56a	51
08a6f934	52	$expect = 7 * ($#FOO+2) * ($#FOO+1) + 6 * @raw + 6 * @utf8;
44a8e56a	53	print "1..$expect\n";
44a8e56a	54
e76f5e87 DM	55	my $bad_NaN = 0;
	56
	57	{
	58	# gcc's -ffast-math option may stop NaNs working correctly
	59	use Config;
	60	my $ccflags = $Config{ccflags} // '';
	61	$bad_NaN = 1 if $ccflags =~ /-ffast-math\b/;
	62	}
	63
a355d973	64	sub nok ($$$$$$$$) {
2e3031cb NC	65	my ($test, $left, $threeway, $right, $result, $i, $j, $boolean) = @_;
2e3031cb NC	66	$result = defined $result ? "'$result'" : 'undef';
e76f5e87 DM	67	if ($bad_NaN && ($left eq 'NaN' \|\| $right eq 'NaN')) {
	68	print "ok $test # skipping failed NaN test under -ffast-math\n";
	69	}
	70	else {
	71	print "not ok $test # ($left $threeway $right) gives: $result \$i=$i \$j=$j, $boolean disagrees\n";
	72	}
2e3031cb NC	73	}
2e3031cb NC	74
44a8e56a	75	my $ok = 0;
	76	for my $i (0..$#FOO) {
	77	for my $j ($i..$#FOO) {
	78	$ok++;
28e5dec8 JH	79	# Comparison routines may convert these internally, which would change
	80	# what is used to determine the comparison on later runs. Hence copy
	81	my ($i1, $i2, $i3, $i4, $i5, $i6, $i7, $i8, $i9, $i10,
e61d22ef NC	82	$i11, $i12, $i13, $i14, $i15, $i16, $i17) =
	83	($FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i],
	84	$FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i],
28e5dec8 JH	85	$FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i], $FOO[$i]);
28e5dec8 JH	86	my ($j1, $j2, $j3, $j4, $j5, $j6, $j7, $j8, $j9, $j10,
e61d22ef NC	87	$j11, $j12, $j13, $j14, $j15, $j16, $j17) =
	88	($FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j],
	89	$FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j],
28e5dec8 JH	90	$FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j], $FOO[$j]);
	91	my $cmp = $i1 <=> $j1;
	92	if (!defined($cmp) ? !($i2 < $j2)
	93	: ($cmp == -1 && $i2 < $j2 \|\|
	94	$cmp == 0 && !($i2 < $j2) \|\|
	95	$cmp == 1 && !($i2 < $j2)))
	96	{
	97	print "ok $ok\n";
	98	}
	99	else {
2e3031cb	100	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<');
28e5dec8 JH	101	}
	102	$ok++;
	103	if (!defined($cmp) ? !($i4 == $j4)
	104	: ($cmp == -1 && !($i4 == $j4) \|\|
	105	$cmp == 0 && $i4 == $j4 \|\|
	106	$cmp == 1 && !($i4 == $j4)))
	107	{
	108	print "ok $ok\n";
	109	}
	110	else {
a355d973	111	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '==');
28e5dec8 JH	112	}
	113	$ok++;
	114	if (!defined($cmp) ? !($i5 > $j5)
	115	: ($cmp == -1 && !($i5 > $j5) \|\|
	116	$cmp == 0 && !($i5 > $j5) \|\|
	117	$cmp == 1 && ($i5 > $j5)))
	118	{
	119	print "ok $ok\n";
	120	}
	121	else {
a355d973	122	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '>');
28e5dec8 JH	123	}
	124	$ok++;
	125	if (!defined($cmp) ? !($i6 >= $j6)
	126	: ($cmp == -1 && !($i6 >= $j6) \|\|
	127	$cmp == 0 && $i6 >= $j6 \|\|
	128	$cmp == 1 && $i6 >= $j6))
	129	{
	130	print "ok $ok\n";
	131	}
	132	else {
a355d973	133	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '>=');
28e5dec8 JH	134	}
	135	$ok++;
	136	# OK, so the docs are wrong it seems. NaN != NaN
	137	if (!defined($cmp) ? ($i7 != $j7)
	138	: ($cmp == -1 && $i7 != $j7 \|\|
	139	$cmp == 0 && !($i7 != $j7) \|\|
	140	$cmp == 1 && $i7 != $j7))
	141	{
	142	print "ok $ok\n";
	143	}
	144	else {
a355d973	145	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '!=');
28e5dec8 JH	146	}
	147	$ok++;
	148	if (!defined($cmp) ? !($i8 <= $j8)
	149	: ($cmp == -1 && $i8 <= $j8 \|\|
	150	$cmp == 0 && $i8 <= $j8 \|\|
	151	$cmp == 1 && !($i8 <= $j8)))
	152	{
	153	print "ok $ok\n";
	154	}
	155	else {
a355d973	156	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<=');
28e5dec8 JH	157	}
28e5dec8 JH	158	$ok++;
e61d22ef NC	159	my $pmc = $j16 <=> $i16; # cmp it in reverse
	160	# Should give -ve of other answer, or undef for NaNs
	161	# a + -a should be zero. not zero is truth. which avoids using ==
	162	if (defined($cmp) ? !($cmp + $pmc) : !defined $pmc)
	163	{
	164	print "ok $ok\n";
	165	}
	166	else {
	167	nok ($ok, $i3, '<=>', $j3, $cmp, $i, $j, '<=> transposed');
	168	}
	169
	170
	171	# String comparisons
	172	$ok++;
28e5dec8 JH	173	$cmp = $i9 cmp $j9;
	174	if ($cmp == -1 && $i10 lt $j10 \|\|
	175	$cmp == 0 && !($i10 lt $j10) \|\|
	176	$cmp == 1 && !($i10 lt $j10))
	177	{
	178	print "ok $ok\n";
	179	}
	180	else {
2e3031cb	181	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'lt');
28e5dec8 JH	182	}
	183	$ok++;
	184	if ($cmp == -1 && !($i11 eq $j11) \|\|
	185	$cmp == 0 && ($i11 eq $j11) \|\|
	186	$cmp == 1 && !($i11 eq $j11))
	187	{
	188	print "ok $ok\n";
	189	}
	190	else {
2e3031cb	191	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'eq');
28e5dec8 JH	192	}
	193	$ok++;
	194	if ($cmp == -1 && !($i12 gt $j12) \|\|
	195	$cmp == 0 && !($i12 gt $j12) \|\|
	196	$cmp == 1 && ($i12 gt $j12))
	197	{
	198	print "ok $ok\n";
	199	}
	200	else {
2e3031cb	201	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'gt');
28e5dec8 JH	202	}
	203	$ok++;
	204	if ($cmp == -1 && $i13 le $j13 \|\|
	205	$cmp == 0 && ($i13 le $j13) \|\|
	206	$cmp == 1 && !($i13 le $j13))
	207	{
	208	print "ok $ok\n";
	209	}
	210	else {
2e3031cb	211	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'le');
28e5dec8 JH	212	}
	213	$ok++;
	214	if ($cmp == -1 && ($i14 ne $j14) \|\|
	215	$cmp == 0 && !($i14 ne $j14) \|\|
	216	$cmp == 1 && ($i14 ne $j14))
44a8e56a	217	{
	218	print "ok $ok\n";
	219	}
	220	else {
2e3031cb	221	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'ne');
44a8e56a	222	}
44a8e56a	223	$ok++;
28e5dec8 JH	224	if ($cmp == -1 && !($i15 ge $j15) \|\|
	225	$cmp == 0 && ($i15 ge $j15) \|\|
	226	$cmp == 1 && ($i15 ge $j15))
44a8e56a	227	{
	228	print "ok $ok\n";
	229	}
	230	else {
2e3031cb	231	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'ge');
44a8e56a	232	}
e61d22ef NC	233	$ok++;
	234	$pmc = $j17 cmp $i17; # cmp it in reverse
	235	# Should give -ve of other answer
	236	# a + -a should be zero. not zero is truth. which avoids using ==
	237	if (!($cmp + $pmc))
	238	{
	239	print "ok $ok\n";
	240	}
	241	else {
0663fb34	242	nok ($ok, $i3, 'cmp', $j3, $cmp, $i, $j, 'cmp transposed');
e61d22ef	243	}
44a8e56a	244	}
44a8e56a	245	}
08a6f934 NC	246
	247	# We know the answers for these. We can rely on the consistency checks above
	248	# to test the other string comparisons.
	249
	250	while (my ($i, $v) = each @raw) {
	251	# Copy, to avoid any inadvertent conversion
	252	my ($raw, $cooked, $not);
	253	$raw = $v;
	254	$cooked = $upgraded[$i];
	255	$not = $raw eq $cooked ? '' : 'not ';
	256	printf "%sok %d # eq, chr %d\n", $not, ++$ok, ord $raw;
	257
	258	$raw = $v;
	259	$cooked = $upgraded[$i];
	260	$not = $raw ne $cooked ? 'not ' : '';
	261	printf "%sok %d # ne, chr %d\n", $not, ++$ok, ord $raw;
	262
	263	$raw = $v;
	264	$cooked = $upgraded[$i];
	265	$not = (($raw cmp $cooked) == 0) ? '' : 'not ';
	266	printf "%sok %d # cmp, chr %d\n", $not, ++$ok, ord $raw;
	267
	268	# And now, transposed.
	269	$raw = $v;
	270	$cooked = $upgraded[$i];
	271	$not = $cooked eq $raw ? '' : 'not ';
	272	printf "%sok %d # eq, chr %d\n", $not, ++$ok, ord $raw;
	273
	274	$raw = $v;
	275	$cooked = $upgraded[$i];
	276	$not = $cooked ne $raw ? 'not ' : '';
	277	printf "%sok %d # ne, chr %d\n", $not, ++$ok, ord $raw;
	278
	279	$raw = $v;
	280	$cooked = $upgraded[$i];
	281	$not = (($cooked cmp $raw) == 0) ? '' : 'not ';
	282	printf "%sok %d # cmp, chr %d\n", $not, ++$ok, ord $raw;
	283	}
	284
	285	while (my ($i, $v) = each @utf8) {
	286	# Copy, to avoid any inadvertent conversion
	287	my ($raw, $cooked, $not);
	288	$raw = $raw[$i];
	289	$cooked = $v;
	290	$not = $raw eq $cooked ? 'not ' : '';
	291	printf "%sok %d # eq vs octets, chr %d\n", $not, ++$ok, ord $raw;
	292
	293	$raw = $raw[$i];
	294	$cooked = $v;
	295	$not = $raw ne $cooked ? '' : 'not ';
	296	printf "%sok %d # ne vs octets, chr %d\n", $not, ++$ok, ord $raw;
	297
	298	$raw = $raw[$i];
	299	$cooked = $v;
	300	$not = (($raw cmp $cooked) == 0) ? 'not ' : '';
	301	printf "%sok %d # cmp vs octects, chr %d\n", $not, ++$ok, ord $raw;
	302
	303	# And now, transposed.
	304	$raw = $raw[$i];
	305	$cooked = $v;
	306	$not = $cooked eq $raw ? 'not ' : '';
	307	printf "%sok %d # eq vs octets, chr %d\n", $not, ++$ok, ord $raw;
	308
	309	$raw = $raw[$i];
310	$cooked = $v;
311	$not = $cooked ne $raw? '' : 'not ';
312	printf "%sok %d # ne vs octets, chr %d\n", $not, ++$ok, ord $raw;
313
314	$raw = $raw[$i];
315	$cooked = $v;
316	$not = (($cooked cmp $raw) == 0) ? 'not ' : '';
317	printf "%sok %d # cmp vs octects, chr %d\n", $not, ++$ok, ord $raw;
318	}