base struct

2025-01-13 13:21:53 +01:00
parent a7e1a55200
commit 09c2cb5b3e
47 changed files with 1835 additions and 0 deletions
--- a/lib/libft/srcs/format/ft_itoa.c
+++ b/lib/libft/srcs/format/ft_itoa.c
@@ -0,0 +1,67 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_itoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: nalebrun <nalebrun@student.s19.be>         +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/15 14:36:46 by nalebrun          #+#    #+#             */
+/*   Updated: 2024/11/27 12:59:05 by nalebrun         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../../libft.h"
+
+static char	*ft_itoamem(long int n)
+{
+	int		i;
+	char	*res;
+	int		sign;
+
+	i = 0;
+	sign = 0;
+	if (n < 0)
+	{
+		sign = 1;
+		n *= -1;
+	}
+	while (n > 9)
+	{
+		n /= 10;
+		i++;
+	}
+	res = malloc(((i + 1) + sign + 1) * sizeof(char));
+	if (!res)
+		return (NULL);
+	res[i + 1 + sign] = '\0';
+	ft_memset(res, 48, ((i + 1) + sign) * sizeof(char));
+	return (res);
+}
+
+char	*ft_itoa(int n)
+{
+	char		*res;
+	int			i;
+	long int	num;
+
+	num = n;
+	res = ft_itoamem(num);
+	if (!res)
+		return (NULL);
+	i = 0;
+	if (num < 0)
+	{
+		res[i] = '-';
+		num *= -1;
+	}
+	i = ft_strlen(res);
+	res[i] = '\0';
+	i--;
+	while (num > 9)
+	{
+		res[i--] = (num % 10) + '0';
+		num /= 10;
+	}
+	res[i] = num + '0';
+	return (res);
+}