Libft extra functions

lib/libft/ft_ltoa.c

@@ -0,0 +1,88 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_ltoa.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/09/22 20:46:43 by aortigos          #+#    #+#             */
+/*   Updated: 2025/11/16 20:25:47 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static size_t	len_sl(long long nl)
+{
+	size_t len;
+
+	len = 0;
+	if (nl <= 0)
+		len++;
+	while (nl != 0)
+	{
+		len++;
+		nl /= 10;
+	}
+	return (len);
+}
+
+char	*ft_sltoa(long long nl)
+{
+	char	*str;
+	size_t	len;
+
+	len = len_sl(nl);
+	str = (char *)malloc(sizeof(char) * (len + 1));
+	if (!str)
+		return (NULL);
+	if (nl < 0)
+	{
+		str[0] = '-';
+		nl *= -1;
+	}
+	str[len] = 0;
+	str[--len] = (nl % 10) + '0';
+	nl /= 10;
+	while (nl != 0 && len--)
+	{
+		str[len] = (nl % 10) + '0';
+		nl /= 10
+	}
+	return (str);
+}
+
+static size_t	len_ul(unsigned long long un)
+{
+	size_t	len;
+
+	len = 0;
+	if (un == 0)
+		len++;
+	while (un != 0)
+	{
+		len++;
+		un /= 10;
+	}
+	return (len);
+}
+
+char	*ft_ultoa(unsigned long long un)
+{
+	char	*str;
+	size_t	len;
+
+	len = len_ul(un);
+	str = (char *)malloc(sizeof(char) * (len + 1));
+	if (!str)
+		return (NULL);
+	str[len] = 0;
+	str[--len] = (un % 10) + '0';
+	un /= 10;
+	while (un != 0 && len--)
+	{
+		str[len] = (un % 10) + '0';
+		un /= 10;
+	}
+	return (str);
+}