From 6169d697a5be59426d034b878bffc848de49491d Mon Sep 17 00:00:00 2001
From: Charles Cabergs <me@cacharle.xyz>
Date: Wed, 18 Nov 2020 10:30:31 +0100
Subject: Added cpp06/ex01 and ex02

---
 cpp06/ex02/main.cpp | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 90 insertions(+), 2 deletions(-)

(limited to 'cpp06/ex02/main.cpp')

diff --git a/cpp06/ex02/main.cpp b/cpp06/ex02/main.cpp
index 17c0c3d..86cd78f 100644
--- a/cpp06/ex02/main.cpp
+++ b/cpp06/ex02/main.cpp
@@ -6,12 +6,14 @@
 /*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/04/15 10:00:18 by charles           #+#    #+#             */
-/*   Updated: 2020/04/15 10:05:23 by charles          ###   ########.fr       */
+/*   Updated: 2020/11/18 09:29:49 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include <iostream>
+#include <fstream>
 #include <cstdlib>
+#include <ctime>
 #include "Base.hpp"
 #include "A.hpp"
 #include "B.hpp"
@@ -28,9 +30,95 @@ Base* generate(void)
     return NULL;
 }
 
+void identify_from_pointer(Base *p)
+{
+    if (dynamic_cast<A*>(p) != NULL)
+        std::cout << "A" << std::endl;
+    else if (dynamic_cast<B*>(p) != NULL)
+        std::cout << "B" << std::endl;
+    else if (dynamic_cast<C*>(p) != NULL)
+        std::cout << "C" << std::endl;
+    else
+        std::cout << "Couldn't identify from pointer" << std::endl;
+}
+
+void identify_from_reference(Base &p)
+{
+    try
+    {
+        (void)dynamic_cast<A&>(p);
+        std::cout << "A" << std::endl;
+        return;
+    }
+    catch (std::exception &e)
+    {}
+    try
+    {
+        (void)dynamic_cast<B&>(p);
+        std::cout << "B" << std::endl;
+        return;
+    }
+    catch (std::exception &e)
+    {}
+    try
+    {
+        (void)dynamic_cast<C&>(p);
+        std::cout << "C" << std::endl;
+        return;
+    }
+    catch (std::exception &e)
+    {}
+
+    std::cout << "Couldn't identify from reference" << std::endl;
+}
+
 int main()
 {
-    srand(time(NULL));
+    int seed;
+    std::ifstream devRandom("/dev/random");
+    if (devRandom.is_open())
+    {
+        devRandom.read((char*)&seed, sizeof(int));
+        devRandom.close();
+    }
+    else
+    {
+        seed = time(NULL);
+    }
+	srand(seed);
+
+    {
+        std::cout << "=============== IDENTIFY FROM POINTER ===============" << std::endl;
+        Base *a = new A();
+        Base *b = new B();
+        Base *c = new C();
+        identify_from_pointer(a);
+        identify_from_pointer(b);
+        identify_from_pointer(c);
+        delete a;
+        delete b;
+        delete c;
+    }
+
+    {
+        std::cout << "=============== IDENTIFY FROM REF     ===============" << std::endl;
+        A a;
+        B b;
+        C c;
+        identify_from_reference(a);
+        identify_from_reference(b);
+        identify_from_reference(c);
+    }
+
+    std::cout << "=============== GENERATE              ===============" << std::endl;
+    for (int i = 0; i < 10; i++)
+    {
+        Base *b = generate();
+        std::cout << "---" << std::endl;
+        identify_from_pointer(b);
+        identify_from_reference(*b);
+        delete b;
+    }
 
     return 0;
 }
-- 
cgit