<option>
	<type>bool</type>
	<long>bool</long>
	<short>b</short>
</option>

if (clo.get_bool_option("bool")) {
	cout << "true" << endl;
} else {
	cout << "false" << endl;
}

--bool true
-b true
--bool false
-b false
--bool yes
-b yes
--bool no
-b no
--bool on
-b on
--bool off
-b off
--

true
true
false
false
true
true
false
false
true
true
false
false
false
