d06 ex02

d06/ex02/Makefile

@@ -0,0 +1,75 @@
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #
+#               . name = value \          . += append to a variable   #
+#   VARIABLES   .        value            . != set result of command  #
+#               . name is case sensitive  . ?= set if not already set #
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #
+
+NAME      = dynamic
+
+#TYPE      = c
+TYPE      = cpp
+
+ifeq "$(TYPE)" "c"
+  CC      = c
+  EXT     = c
+else ifeq "$(TYPE)" "cpp"
+  CC      = c++
+  EXT     = cpp
+endif
+
+CFLAGS    = -Wall -Wextra -Werror $(INCLUDES)
+ifeq "$(TYPE)" "cpp"
+  CFLAGS += -std=c++98
+endif
+
+VPATH     = $(D_SRCS)
+
+LIBS      =
+
+INCLUDES  = -I$(D_HEADERS)
+
+D_SRCS    = .
+SRCS      = main.cpp
+
+D_HEADERS = headers
+HEADERS   = Classes.hpp
+
+D_OBJS    = builds
+OBJS      = $(SRCS:%.$(EXT)=$(D_OBJS)/%.o)
+
+ifeq "$(D_OBJS)" "."
+  RM_OBJS = rm -f $(OBJS)
+else
+  RM_OBJS = rm -rf $(D_OBJS)
+endif
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #
+#             .   target: prerequisites   .   $@ : target             #
+#    RULES    .           recipe          .   $< : 1st prerequisite   #
+#             .           recipe          .   $^ : all prerequisites  #
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #
+
+all: $(NAME)
+
+$(D_OBJS)/%.o: %.$(EXT) | $(D_OBJS)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+$(D_OBJS):
+	mkdir $@
+
+$(OBJS): $(HEADERS:%=$(D_HEADERS)/%)
+
+$(NAME): $(OBJS)
+	$(CC) $(OBJS) -o $@ $(LIBS)
+
+clean:
+	$(RM_OBJS)
+
+fclean: clean
+	rm -f $(NAME)
+
+re: fclean all
+
+.PHONY : all clean fclean re
+

d06/ex02/headers/Classes.hpp

@@ -0,0 +1,14 @@
+#ifndef CLASSES_HPP
+# define CLASSES_HPP
+
+class Base {
+public:
+	virtual ~Base() {}
+};
+
+class A : public Base {};
+class B : public Base {};
+class C : public Base {};
+
+#endif
+

d06/ex02/main.cpp

@@ -0,0 +1,77 @@
+#include <iostream>
+#include <cstdlib>
+#include <exception>
+
+#include "Classes.hpp"
+
+Base * generate() {
+	Base *base;
+
+	srand (time(NULL));
+	int	i = rand() % 3;
+
+	if (i == 0)
+	{
+		std::cout << "A\n";
+		base = new A();
+	}
+	else if (i == 1)
+	{
+		std::cout << "B\n";
+		base = new B();
+	}
+	else
+	{
+		std::cout << "C\n";
+		base = new C();
+	}
+
+	return base;
+}
+
+void identify(Base* p) {
+	A * a;
+	B * b;
+	C * c;
+
+	a = dynamic_cast<A *>(p);
+	if ( a != NULL)
+		std::cout << "A\n";
+	b = dynamic_cast<B *>(p);
+	if ( b != NULL)
+		std::cout << "B\n";
+	c = dynamic_cast<C *>(p);
+	if ( c != NULL)
+		std::cout << "C\n";
+}
+
+void identify(Base& p) {
+	Base base;
+	try {
+		base = dynamic_cast<A&>(p);
+		std::cout << "<A> ";
+	}
+	catch ( std::exception ) {std::cout << "<not A...> ";}
+	try {
+		base = dynamic_cast<B&>(p);
+		std::cout << "<B> ";
+	}
+	catch ( std::exception ) {std::cout << "<not B...> ";}
+	try {
+		base = dynamic_cast<C&>(p);
+		std::cout << "<C> ";
+	}
+	catch ( std::exception ) {std::cout << "<not C...> ";}
+	std::cout << "\n";
+}
+
+int	main() {
+
+	Base *base = generate();
+
+	identify(base);
+	identify(*base);
+
+	delete base;
+	return 0;
+}