Inheritance and dynamic polymorphism
In C++, we can expand the functionality of a class without modifying it with inheritance. Inheritance is an example of establishing a hierarchical relationship between classes; for example, ADXL345 is an accelerometer. Let us go through a trivial example that demonstrates inheritance in C++:
#include <cstdio>
class A {
public:
void method_1() {
printf("Class A, method1\r\n");
}
void method_2() {
printf("Class A, method2\r\n");
}
protected:
void method_protected() {
printf("Class A, method_protected\r\n");
}
};
class B : public A{
public:
void method_1() {
printf("Class B, method1\r\n");
}
void method_3() {
printf("Class B, method3\r\n");
A::method_2();
A::method_protected();
}
};
int main() {
B b;
b.method_1();
b.method_2();
b.method_3();
printf("-----------------\r...
