^

/*
 *  call-seq:
 *     true ^ obj   => !obj
 *  
 *  Exclusive Or---Returns <code>true</code> if <i>obj</i> is
 *  <code>nil</code> or <code>false</code>, <code>false</code>
 *  otherwise.
 */

static VALUE
true_xor(obj, obj2)
    VALUE obj, obj2;
{
    return RTEST(obj2)?Qfalse:Qtrue;
}