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In the following code, f1 is an overloading function. In what situation will be the first called, in what situation will the second be called? #include <iostream> using namespace std; class A { public: void f1(){cout<<"f1 "<<endl;} void f1() const {cout<<"f1 "<<endl;} }; int main() { A a; a.f1(); return …
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what's the difference between the following two snippets of code? In a. B is returned; in b. B& is returned. a. class B { public: int i; }; class D { public: B fd(){B db; db.i=2; return db;} }; b. class B { public: int i; }; class D { … 
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