Libft extra functions

lib/libft/ft_atof.c

@@ -0,0 +1,38 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_atoi.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/09/22 20:46:43 by aortigos          #+#    #+#             */
+/*   Updated: 2023/10/18 20:41:03 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+double	ft_atof(char *str)
+{
+	int		num;
+	double	rest;
+	char	*tmp;
+	int		i;
+
+	num = ft_atoi(str);
+	tmp = ft_strchr(str, '.');
+	if (!tmp)
+		tmp = ft_strchr(str, ',');
+	if (!tmp)
+		return (num);
+	rest = ft_atoi(&tmp[1]);
+	i = 1;
+	while (tmp[i])
+	{
+		rest /= 10;
+		i++;
+	}
+	if (num < 0 || (str[0] == '-' && str[1] == '0'))
+		return (num - rest);
+	return (num + rest);
+}