add ft_atof

Makefile

@@ -30,6 +30,7 @@ SRCS	=	ft_memset.c \
 			ft_isalnum.c \
 			ft_isnumber.c \
 			ft_isascii.c \
+			ft_isspace.c \
 			ft_isprint.c \
 			ft_toupper.c \
 			ft_tolower.c \
@@ -66,8 +67,10 @@ SRCS	=	ft_memset.c \
 			\
 			ft_atoi.c \
 			ft_atol.c \
+			ft_atof.c \
 			ft_itoa.c \
 			ft_utoa.c \
+			ft_atoibase.c \
 			\
 			ft_putchar.c \
 			ft_putstr.c \
@@ -93,7 +96,6 @@ SRCS	=	ft_memset.c \
 			ft_lstcopy.c \
 			\
 			ft_any.c \
-			ft_atoibase.c \
 			ft_convertbase.c \
 			ft_convertbase_free.c \
 			ft_foreach.c \

includes/libft.h

@@ -30,6 +30,7 @@ int					ft_isdigit(int c);
 int ft_isnumber(char *nb);
 int ft_isalnum(int c);
 int ft_isascii(int c);
+int ft_isspace(int c);
 int ft_isprint(int c);
 int ft_toupper(int c);
 int ft_tolower(int c);
@@ -42,6 +43,7 @@ size_t				ft_strlcat(char *dst, const char *src, size_t size);
 char *ft_strnstr(const char *b, const char *l, size_t s);
 int ft_atoi(const char *str);
 long ft_atol(const char *str);
+double ft_atof(const char *str);
 void *ft_calloc(size_t count, size_t size);
 char *ft_strdup(const char *s1);
 
@@ -62,21 +64,8 @@ void				ft_putstr_fd(const char *s, int fd);
 void ft_putnbr_fd(int n, int fd);
 void ft_putnbrbase_fd(int nbr, const char *base, int fd);
 
-/*
+// void ft_putendl(char const *str);
-void				ft_putchar(char c);
+// void ft_putendl_fd(char *s, int fd);
-void				ft_putstr(char *s);
-void				ft_putnbr(int n);
-void				ft_putnbrbase(int nbr, char *base);
-void				ft_putchar_fd(char c, int fd);
-void				ft_putstr_fd(char *s, int fd);
-void				ft_putnbr_fd(int n, int fd);
-void				ft_putnbrbase_fd(int nbr, char *base, int fd);
-*/
-
-/*
-void				ft_putendl(char const *str);
-void				ft_putendl_fd(char *s, int fd);
-*/
 
 typedef struct s_list
 {
@@ -85,19 +74,19 @@ typedef struct		s_list
 	struct s_list *next;
 } t_list;
 
-/*
+// t_list *ft_lstnew(void *content);
-t_list				*ft_lstnew(void *content);
+// void ft_lstadd_front(t_list **alst, t_list *n);
-void				ft_lstadd_front(t_list **alst, t_list *n);
+// void *ft_lstadd_back(t_list **alst, t_list *n);
-void				*ft_lstadd_back(t_list **alst, t_list *n);
+// int ft_lstsize(t_list *lst);
-int					ft_lstsize(t_list *lst);
+// t_list *ft_lstlast(t_list *lst);
-t_list				*ft_lstlast(t_list *lst);
+// void ft_lstdelone(t_list *lst, void (*del)(void *));
-void				ft_lstdelone(t_list *lst, void (*del)(void *));
+// void ft_lstclear(t_list **lst, void (*del)(void *));
-void				ft_lstclear(t_list **lst, void (*del)(void *));
+// void ft_lstiter(t_list *lst, void (*f)(void *));
-void				ft_lstiter(t_list *lst, void (*f)(void *));
+// t_list *ft_lstmap(t_list *l, void *(*f)(void *), void (*d)(void *));
-t_list				*ft_lstmap(t_list *l, void *(*f)(void*), void (*d)(void*));
+
-*/
 // void ft_lstremove(t_list *lst, void (*del)(void *));
 // t_list *ft_lstfind(t_list *lst, void *to_find, int (*comp)(void *, void *));
+
 t_list *ft_lstcreate(void *content);
 void *ft_lstpush_back(t_list **lst, t_list *new);
 void ft_lstpush_front(t_list **alst, t_list *new);

srcs/ft_atof.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include "libft.h"
+
+double ft_atof(const char *str)
+{
+	double nbr;
+	int i;
+	int negatif;
+	double fraction;
+
+	i = 0;
+	negatif = 1;
+	nbr = 0.0;
+	fraction = 1.0;
+
+	// Skip leading whitespace
+	while ((str[i] == ' ') || (str[i] > 8 && str[i] < 14))
+		i++;
+
+	// Handle optional sign
+	if (str[i] == '-')
+		negatif = -1;
+	if (str[i] == '+' || str[i] == '-')
+		i++;
+
+	// Parse integer part
+	while (str[i] >= '0' && str[i] <= '9')
+		nbr = nbr * 10.0 + (str[i++] - '0');
+
+	// Parse fractional part if '.' is present
+	if (str[i] == '.')
+	{
+		i++;
+		while (str[i] >= '0' && str[i] <= '9')
+		{
+			fraction /= 10.0;
+			nbr += (str[i++] - '0') * fraction;
+		}
+	}
+
+	return (nbr * negatif);
+}

srcs/ft_atoi.c

@@ -21,13 +21,20 @@ int		ft_atoi(const char *str)
 	i = 0;
 	negatif = 1;
 	nbr = 0;
+
+	// Skip leading whitespace
 	while ((str[i] == ' ') || (str[i] > 8 && str[i] < 14))
 		i++;
+
+	// Handle optional sign
 	if (str[i] == '-')
 		negatif = -1;
 	if (str[i] == '+' || str[i] == '-')
 		i++;
+
+	// parse integer
 	while (str[i] >= '0' && str[i] <= '9')
 		nbr = nbr * 10 + (str[i++] - '0');
+
 	return (nbr * negatif);
 }

srcs/ft_atol.c

@@ -10,13 +10,20 @@ long	ft_atol(const char *str)
 	i = 0;
 	negatif = 1;
 	nbr = 0;
+
+	// Skip leading whitespace
 	while ((str[i] == ' ') || (str[i] > 8 && str[i] < 14))
 		i++;
+
+	// Handle optional sign
 	if (str[i] == '-')
 		negatif = -1;
 	if (str[i] == '+' || str[i] == '-')
 		i++;
+
+	// parse integer
 	while (str[i] >= '0' && str[i] <= '9')
 		nbr = nbr * 10 + (str[i++] - '0');
+
 	return (nbr * negatif);
 }

srcs/ft_isspace.c

@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_isalpha.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/11/25 13:55:15 by hulamy            #+#    #+#             */
+/*   Updated: 2019/11/25 13:55:17 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+#define SPACE ' '
+#define FORM_FEED '\f'
+#define NEWLINE '\n'
+#define CARRIAGE_RETURN '\r'
+#define HORIZONTAL_TAB '\t'
+#define VERTICAL_TAB '\v'
+
+int ft_isspace(int c)
+{
+	return (c == SPACE || c == FORM_FEED || c == NEWLINE ||
+			c == CARRIAGE_RETURN || c == HORIZONTAL_TAB || c == VERTICAL_TAB);
+}