Modify the test files to see what exactly happens.

examples/test.cpp

@@ -10,9 +10,33 @@
 
 using namespace std;
 
+class A
+{
+    int i;
+
+public:
+    A(int ii = 0) : i(ii) {}
+    void show() { cout << i << endl; }
+};
+
+class B
+{
+    int x;
+
+public:
+    B(int xx) : x(xx) {}
+    operator A() const { return A(x); }
+};
+
+void g(A a)
+{
+    a.show();
+}
+
 int main()
 {
-    //
-    cout << boolalpha << ((7 >= 7) && (true || 99 < 1) || !(3 > 5 && 7 < 10) && 2 != 4) << endl;
+    B b(10);
+    g(b);
+    g(20);
     return 0;
 }