Oct 18, 2010 at 8:01pm
1) C1 prints whatever it is constructed with.
2) Inspect lines 16 and 17 very closely. Line 16 invokes the base constructor C1 with a value of 1. Line 17 is printing m_c1 + m_c1, which is 1 + 1.
3) Similarly, in C3, m_c1 is 1, m_c2 is 2, and m_c3 is 1.9, totaling 4.9.
Last edited on Oct 18, 2010 at 8:02pm
Oct 18, 2010 at 8:24pm
I think I understod, but line 23 doesn't invokes the base constructor C1. Or not?
Oct 18, 2010 at 8:59pm
It does. C3 inherits from C2, which inherits from C1. The constructors are called in order from the base class up to the most derived subclass.