ver 1.0

.gitignore

+build/
+.cache/
\ No newline at end of file

CMakeLists.txt

+cmake_minimum_required(VERSION 3.5.0)
+project(stl_debug VERSION 0.1.0 LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+
+INCLUDE_DIRECTORIES(
+    include
+)
+
+add_subdirectory(src)
+

include/Human.hpp

+#pragma once
+#include <string>
+class Human
+{
+private:
+    /* data */
+    std::string name_;
+    int age_;
+public:
+    explicit Human(int age, const std::string name = "") : name_(name), age_(age) {};
+    virtual ~Human();
+    virtual void print() const;
+
+};

include/Student.hpp

+#pragma once
+
+#include "Human.hpp"
+
+class Student : public Human
+{
+private:
+    /* data */
+    std::string school_;
+public:
+    explicit Student(int age, const std::string name = "", const std::string school = "") : Human(age, name), school_(school) {};
+    virtual ~Student() override;
+    virtual void print() const override;
+};
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src/CMakeLists.txt

+add_executable(
+    stl_test main.cpp Human.cpp Student.cpp
+)
\ No newline at end of file

src/Human.cpp

+#include "Human.hpp"
+
+Human::~Human() {
+    printf("Human destructor called\n");
+}
+
+void Human::print() const {
+    printf("My name is %s and I am %d years old\n", name_.c_str(), age_);
+}
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src/Student.cpp

+#include "Student.hpp"
+
+Student::~Student() {
+    printf("Student destructor called\n");
+}
+
+void Student::print() const {
+    Human::print();
+    printf("I'm from %s\n", school_.c_str());
+}
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src/main.cpp

+#include <stdio.h>
+#include "Human.hpp"
+#include "Student.hpp"
+#include <vector>
+
+int main(int, char**){
+    printf("Hello, from stl_debug!\n");
+    std::vector<Human*> vec;
+    Human human(25, "John Doe");
+    Student student(20, "Jane Doe", "MIT");
+    vec.push_back(&human);
+    vec.push_back(&student);
+    for (const auto& h : vec) {
+        h->print();
+    }
+    static_cast<Student*>(vec.back())->print();
+}