「🎉」 init: hello world !

ex02/Array.hpp

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+#include <cstddef>
+#include <exception>
+#include <iterator>
+#include <string>
+
+template <typename T> class Array {
+public:
+	Array(): _arr(new T[0]), _size(0) {}
+	Array(const int n): _arr(new T[n]), _size(n) {}
+	Array(const Array &cpy) {*this = cpy;}
+	~Array(void) {delete[] _arr;}
+
+	Array &operator=(const Array &cpy)
+	{
+		if (this != &cpy) {
+			_size = cpy._size;
+			_arr = new T[_size];
+			if (_arr)
+			{
+				for (std::size_t i = 0; i < _size; i++)
+					_arr[i] = cpy._arr[i];
+			}
+		}
+		return (*this);
+	}
+
+	T	&operator[](const size_t &pos)
+	{
+		if (pos < 0 || pos >= _size)
+		{
+			throw outOfBoundException();
+		}
+		return _arr[pos];
+	}
+
+	class outOfBoundException : public std::exception {
+		virtual const char *what() const throw()
+		{
+			return ("value is out of bound");
+		}
+	};
+
+
+private:
+	T		*_arr;
+	size_t	_size;
+};

ex02/Makefile

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+# **************************************************************************** #
+#                                                                              #
+#                                                         :::      ::::::::    #
+#    Makefile                                           :+:      :+:    :+:    #
+#                                                     +:+ +:+         +:+      #
+#    By: mmoussou <mmoussou@student.42angouleme.fr  +#+  +:+       +#+         #
+#                                                 +#+#+#+#+#+   +#+            #
+#    Created: 2024/01/22 07:21:18 by mmoussou          #+#    #+#              #
+#    Updated: 2025/08/16 19:49:30 by mmoussou         ###   ########.fr        #
+#                                                                              #
+# **************************************************************************** #
+
+SHELL = bash
+
+RED = \033[0;31m
+GREEN = \033[0;32m
+YELLOW = \033[1;33m
+PURPLE = \e[0;35m
+NC = \033[0m
+DELETE = \x1B[2K
+
+CC = c++
+
+FLAGS = -std=c++98 -Wall -Werror -Wextra
+
+INCLUDES = .
+
+NAME = ex02
+
+SRCS = main.cpp
+
+OBJSDIR = obj/
+OBJS = $(addprefix $(OBJSDIR), $(SRCS:.cpp=.o))
+
+all: $(NAME)
+
+$(NAME): $(OBJS)
+	@$(CC) $(FLAGS) -I$(INCLUDES) $(OBJS) -o $(NAME)
+	@printf "$(NC)$(YELLOW)「✨」 feat($(NAME)): program compiled\n$(NC)"
+
+$(OBJSDIR)%.o: %.cpp
+	@mkdir -p $(@D)
+	@$(CC) $(FLAGS) -I$(INCLUDES) -c $< -o $@
+	@printf "$(NC)$(GREEN)「🔨」 build($<): object compiled\n$(NC)"
+
+clean:
+	@rm -f $(OBJS)
+	@printf "$(NC)$(RED)「🗑️」 clean($(OBJS)): object deleted\n$(NC)"
+
+fclean: clean
+	@rm -f $(NAME)
+	@rm -Rf $(OBJSDIR)
+	@printf "$(NC)$(RED)「🗑️」 fclean($(NAME)): program deleted\n$(NC)"
+
+re: fclean
+	@$(MAKE) -s all
+
+.PHONY: clean fclean all re

ex02/main.cpp

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+#include <iostream>
+#include <cstdlib>
+#include <Array.hpp>
+
+#define MAX_VAL 750
+int main(int, char**)
+{
+    Array<int> numbers(MAX_VAL);
+    int* mirror = new int[MAX_VAL];
+    srand(time(NULL));
+    for (int i = 0; i < MAX_VAL; i++)
+    {
+        const int value = rand() % 100;
+        numbers[i] = value;
+        mirror[i] = value;
+    }
+    //SCOPE
+    {
+        Array<int> tmp = numbers;
+        Array<int> test(tmp);
+    }
+
+    std::cout << "checking if values are the same after a copy..." << std::endl;
+    for (int i = 0; i < MAX_VAL; i++)
+    {
+        if (mirror[i] != numbers[i])
+        {
+            std::cerr << "didn't save the same value!!" << std::endl;
+            return 1;
+        }
+    }
+    std::cout << "the values are the same ! :D" << std::endl << std::endl;
+
+	std::cout << "trying -2:" << std::endl;
+    try
+    {
+        numbers[-2] = 0;
+    }
+    catch(const std::exception& e)
+    {
+        std::cerr << e.what() << '\n';
+    }
+
+	std::cout << std::endl << "trying a correct value (15):" << std::endl;
+    try
+    {
+		std::cout << numbers[15] << std::endl;
+		numbers[15] = 0;
+		std::cout << numbers[15] << std::endl;
+    }
+    catch(const std::exception& e)
+    {
+        std::cerr << e.what() << '\n';
+    }
+
+	std::cout << std::endl << "trying MAX_VAL:" << std::endl;
+    try
+    {
+        numbers[MAX_VAL] = 0;
+    }
+    catch(const std::exception& e)
+    {
+        std::cerr << e.what() << '\n';
+    }
+
+	std::cout << std::endl;
+    for (int i = 0; i < MAX_VAL; i++)
+    {
+		std::cout << numbers[i] << " ";
+    }
+	std::cout << std::endl;
+    delete [] mirror;
+    return 0;
+}