C++ using
sample 1
#include <iostream>
class A {
public:
void print(char *str) {
std::cout << "A:" << str << std::endl;
}
};
class B : public A {
public:
void print(char *str) {
std::cout << "B1:" << str << std::endl;
}
using A::print;
void print(std::string& str) {
std::cout << "B2:" << str << std::endl;
}
};
int main(int argc, char **argv){
A a;
char str[] = "qwerty";
a.print(str);
std::string sstr("12345");
B b;
b.print(str);
b.print(sstr);
return 0;
}
$ ./virt2
A:qwerty
B1:qwerty
B2:12345
sample 2
#include <iostream>
class A {
public:
void print(char *str) {
std::cout << "A:" << str << std::endl;
}
};
class B : public A {
public:
//void print(char *str) {
//std::cout << "B1:" << str << std::endl;
//}
using A::print;
void print(std::string& str) {
std::cout << "B:" << str << std::endl;
}
};
int main(int argc, char **argv){
A a;
char str[] = "qwerty";
a.print(str);
std::string sstr("12345");
B b;
b.print(str);
b.print(sstr);
return 0;
}
$ ./virt2
A:qwerty
A:qwerty
B:12345