uni

commit 7f9f269f2148b12b4158cb39dc361150855e4ee8
parent a4085ca61e85ad6fa12a8ae2e57812c9e29786b2
Author: Christos Margiolis <christos@margiolis.net>
Date:   Sat,  2 May 2020 01:43:44 +0300

brought back dynamic_cast<>()

Diffstat:
M
assignment-2.4-inheritance/bin/inheritance
 | 
0

M
assignment-2.4-inheritance/obj/app.o
 | 
0

M
assignment-2.4-inheritance/obj/appsystem.o
 | 
0

M
assignment-2.4-inheritance/obj/game.o
 | 
0

M
assignment-2.4-inheritance/obj/main.o
 | 
0

M
assignment-2.4-inheritance/obj/office.o
 | 
0

M
assignment-2.4-inheritance/src/app.h
 | 
7
-------
M
assignment-2.4-inheritance/src/appsystem.cpp
 | 
15
+++++++++------
M
assignment-2.4-inheritance/src/game.h
 | 
8
++++----
M
assignment-2.4-inheritance/src/main.cpp
 | 
21
+++++++++++++--------
M
assignment-2.4-inheritance/src/office.h
 | 
4
++--

11 files changed, 28 insertions(+), 27 deletions(-)
diff --git a/assignment-2.4-inheritance/bin/inheritance b/assignment-2.4-inheritance/bin/inheritance
Binary files differ.
diff --git a/assignment-2.4-inheritance/obj/app.o b/assignment-2.4-inheritance/obj/app.o
Binary files differ.
diff --git a/assignment-2.4-inheritance/obj/appsystem.o b/assignment-2.4-inheritance/obj/appsystem.o
Binary files differ.
diff --git a/assignment-2.4-inheritance/obj/game.o b/assignment-2.4-inheritance/obj/game.o
Binary files differ.
diff --git a/assignment-2.4-inheritance/obj/main.o b/assignment-2.4-inheritance/obj/main.o
Binary files differ.
diff --git a/assignment-2.4-inheritance/obj/office.o b/assignment-2.4-inheritance/obj/office.o
Binary files differ.
diff --git a/assignment-2.4-inheritance/src/app.h b/assignment-2.4-inheritance/src/app.h
@@ -39,13 +39,6 @@ class App
 		void set_os(const std::string& os);
 		void set_manf(Manufacturer *manf);
 		void set_price(int price);
-
-		virtual const std::string get_genre() const {return {};} 
-		virtual bool get_online() const {return false;} // not good
-		virtual void set_genre(const std::string& genre) {}
-		virtual void set_online(bool online) {}
-		virtual const std::vector<std::string> get_exts() const {return {};}
-		virtual void set_exts(const std::vector<std::string>& extensions) {}
 };
 
 #endif /* APP_H */
diff --git a/assignment-2.4-inheritance/src/appsystem.cpp b/assignment-2.4-inheritance/src/appsystem.cpp
@@ -130,22 +130,25 @@ void AppSystem::chprice(const std::string& appname, int price)
 void AppSystem::chgenre(const std::string& appname, const std::string& genre)
 {
 	for (auto& app : apps)
-		if (app->get_name() == appname)
-			app->set_genre(genre);
+		if (Game *o = dynamic_cast<Game *>(app))
+			if (o->get_name() == appname)
+				o->set_genre(genre);
 }
 
 void AppSystem::chonline(const std::string& appname, bool online)
 {
 	for (auto& app : apps)
-		if (app->get_name() == appname)
-			app->set_online(online);
+		if (Game *o = dynamic_cast<Game *>(app))
+			if (o->get_name() == appname)
+				o->set_online(online);
 }
 
 void AppSystem::chexts(const std::string& appname, const std::vector<std::string> exts)
 {
 	for (auto& app : apps)
-		if (app->get_name() == appname)
-			app->set_exts(exts);
+		if (Office *o = dynamic_cast<Office *>(app))
+			if (o->get_name() == appname)
+				o->set_exts(exts);
 }
 
 void AppSystem::removebad(Manufacturer *man)
diff --git a/assignment-2.4-inheritance/src/game.h b/assignment-2.4-inheritance/src/game.h
@@ -15,11 +15,11 @@ class Game: public App
 				const std::string& os, Manufacturer *manf, int price,
 				const std::string& genre, bool online);
 
-		const std::string get_genre() const override;
-		bool get_online() const override;
+		const std::string get_genre() const;
+		bool get_online() const;
 
-		void set_genre(const std::string& genre) override;
-		void set_online(bool online) override;
+		void set_genre(const std::string& genre);
+		void set_online(bool online);
 };
 
 #endif /* GAME_H */
diff --git a/assignment-2.4-inheritance/src/main.cpp b/assignment-2.4-inheritance/src/main.cpp
@@ -12,14 +12,19 @@ std::ostream& operator<< (std::ostream& stream, const AppSystem& sys)
 			app->get_os() << " " <<
 			app->get_price() << " ";
 
-		std::vector<std::string> exts = app->get_exts();
-		if (!exts.empty())
-			for (auto& ext : exts)
-				stream << ext << " ";		
-
-		stream <<
-			app->get_genre() << " " <<
-			app->get_online() << " ";
+		if (Office *o = dynamic_cast<Office *>(app))
+		{
+			std::vector<std::string> exts = o->get_exts();
+			if (!exts.empty())
+				for (auto& ext : exts)
+					stream << ext << " ";		
+		}
+		else if (Game *o = dynamic_cast<Game *>(app))
+		{
+			stream <<
+				o->get_genre() << " " <<
+				o->get_online() << " ";
+		}
 		
 		std::vector<Review *> revs = app->get_revs();
 		if (!revs.empty())
diff --git a/assignment-2.4-inheritance/src/office.h b/assignment-2.4-inheritance/src/office.h
@@ -15,8 +15,8 @@ class Office: public App
 				int price, const std::vector<std::string>& ext);
 		~Office();
 
-		const std::vector<std::string> get_exts() const override;
-		void set_exts(const std::vector<std::string>& extensions) override;
+		const std::vector<std::string> get_exts() const;
+		void set_exts(const std::vector<std::string>& extensions);
 };
 
 #endif /* OFFICE_H */