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#!./perl
# $Header: cmd.subval,v 3.0 89/10/18 15:24:52 lwall Locked $
sub foo1 {
'true1';
if ($_[0]) { 'true2'; }
}
sub foo2 {
'true1';
if ($_[0]) { return 'true2'; } else { return 'true3'; }
'true0';
}
sub foo3 {
'true1';
unless ($_[0]) { 'true2'; }
}
sub foo4 {
'true1';
unless ($_[0]) { 'true2'; } else { 'true3'; }
}
sub foo5 {
'true1';
'true2' if $_[0];
}
sub foo6 {
'true1';
'true2' unless $_[0];
}
print "1..26\n";
if (do foo1(0) eq '0') {print "ok 1\n";} else {print "not ok 1 $foo\n";}
if (do foo1(1) eq 'true2') {print "ok 2\n";} else {print "not ok 2\n";}
if (do foo2(0) eq 'true3') {print "ok 3\n";} else {print "not ok 3\n";}
if (do foo2(1) eq 'true2') {print "ok 4\n";} else {print "not ok 4\n";}
if (do foo3(0) eq 'true2') {print "ok 5\n";} else {print "not ok 5\n";}
if (do foo3(1) eq '1') {print "ok 6\n";} else {print "not ok 6\n";}
if (do foo4(0) eq 'true2') {print "ok 7\n";} else {print "not ok 7\n";}
if (do foo4(1) eq 'true3') {print "ok 8\n";} else {print "not ok 8\n";}
if (do foo5(0) eq '0') {print "ok 9\n";} else {print "not ok 9\n";}
if (do foo5(1) eq 'true2') {print "ok 10\n";} else {print "not ok 10\n";}
if (do foo6(0) eq 'true2') {print "ok 11\n";} else {print "not ok 11\n";}
if (do foo6(1) eq '1') {print "ok 12\n";} else {print "not ok 12 $x\n";}
# Now test to see that recursion works using a Fibonacci number generator
sub fib {
local($arg) = @_;
local($foo);
$level++;
if ($arg <= 2) {
$foo = 1;
}
else {
$foo = do fib($arg-1) + do fib($arg-2);
}
$level--;
$foo;
}
@good = (0,1,1,2,3,5,8,13,21,34,55,89);
for ($i = 1; $i <= 10; $i++) {
$foo = $i + 12;
if (do fib($i) == $good[$i]) {
print "ok $foo\n";
}
else {
print "not ok $foo\n";
}
}
sub ary1 {
(1,2,3);
}
print &ary1 eq 3 ? "ok 23\n" : "not ok 23\n";
print join(':',&ary1) eq '1:2:3' ? "ok 24\n" : "not ok 24\n";
sub ary2 {
do {
return (1,2,3);
(3,2,1);
};
0;
}
print &ary2 eq 3 ? "ok 25\n" : "not ok 25\n";
$x = join(':',&ary2);
print $x eq '1:2:3' ? "ok 26\n" : "not ok 26 $x\n";
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