day finished

Makefile

@@ -6,7 +6,7 @@
 #    By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2023/11/01 11:03:22 by adjoly            #+#    #+#              #
-#    Updated: 2023/11/03 23:05:37 by adjoly           ###   ########.fr        #
+#    Updated: 2023/11/04 15:37:27 by adjoly           ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -31,7 +31,9 @@ SRCS = ft_atoi.c \
 		ft_substr.c \
 		ft_tolower.c \
 		ft_toupper.c \
-
+		ft_strlcat.c \
+		ft_strjoin.c \
+	
 OBJS = $(SRCS:.c=.o)
 
 FLAGS = -Werror -Wall -Wextra
@@ -41,6 +43,10 @@ HEADER = libft.h
 $(NAME): $(OBJS)
 	ar -rcs	$(NAME) $(OBJS)
 
+so:
+	$(CC) -nostartfiles -fPIC $(CFLAGS) $(SRCS)
+	gcc -nostartfiles -shared -o libft.so $(OBJS)
+
 %.o: %.c
 	$(CC) $(FLAGS) -I $(HEADER) $< -c -o $@
 

ft_memcpy.c

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/02 10:21:55 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/02 11:30:30 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 14:13:12 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,7 +17,7 @@ void	*ft_memcpy(void *dest, const void *src, size_t n)
 	size_t	i;
 
 	i = 0;
-	if (src == NULL || dest == NULL || n == 0)
+	if (src == NULL && dest == NULL)
 	{
 		return (dest);
 	}

ft_strchr.c

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/01 15:45:18 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/02 10:08:05 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 15:32:14 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -15,7 +15,7 @@ char	*ft_strchr(const char *s, int c)
 	int		i;
 	int		j;
 	char	*str_result;
-
+// initialize str_result
 	i = 0;
 	j = 0;
 	while (s[i] != c || s[i])
@@ -29,6 +29,6 @@ char	*ft_strchr(const char *s, int c)
 		}
 		return (str_result);
 	}
-	str_result[0] = '\0';
+	str_result[i] = '\0';
 	return (str_result);
 }

ft_strdup.c

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/03 22:57:39 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/04 11:10:30 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 14:40:17 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 

ft_strjoin.c

@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strjoin.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/11/04 13:44:09 by adjoly            #+#    #+#             */
+/*   Updated: 2023/11/04 14:06:43 by adjoly           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_strjoin(char const *s1, char const *s2)
+{
+	int		i;
+	char	*result;
+	size_t	len_s1;
+	size_t	len_s2;
+
+	i = 0;
+	len_s1 = ft_strlen(s1);
+	len_s2 = ft_strlen(s2);
+	result = malloc(len_s1 + len_s2 + 1);
+	if (result == NULL)
+		return (NULL);
+	ft_memcpy(result, s1, len_s1);
+	ft_memcpy(result + len_s1, s2, len_s2);
+	return (result);
+}

ft_strlcat.c

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/03 15:59:31 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/03 17:12:22 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 16:14:32 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -14,5 +14,25 @@
 
 size_t	ft_strlcat(char *dst, const char *src, size_t size)
 {
-	
+	size_t	i;
+	size_t	j;
+	size_t	len_dst;
+	size_t	len_src;
+
+	if (dst == NULL && size == 0)
+		return (0);
+	i = 0;
+	j = ft_strlen(dst);
+	len_src = ft_strlen(src);
+	len_dst = ft_strlen(dst);
+	if (size <= j)
+		return (len_src + size);
+	while (j < size - 1 && src[i])
+	{
+		dst[j] = src[i];
+		i++;
+		j++;
+	}
+	dst[j] = '\0';
+	return (len_src + len_dst);
 }

ft_substr.c

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/02 17:59:58 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/03 09:56:01 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 15:18:28 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -26,7 +26,7 @@ char	*ft_substr(char const *s, unsigned int start, size_t len)
 		result[0] = '\0';
 		return (result);
 	}
-	result = malloc(len * sizeof(char));
+	result = malloc((len + 1) * sizeof(char));
 	if (result == NULL)
 		return (NULL);
 	while (i < len && s[start + i])

libft.h

@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/01 10:06:03 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/03 23:06:30 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/04 14:07:28 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -37,5 +37,7 @@ size_t	ft_strlen(const char *s);
 char	*ft_substr(char const *s, unsigned int start, size_t len);
 int		ft_tolower(int c);
 int		ft_toupper(int c);
+size_t	ft_strlcat(char *dst, const char *src, size_t size);
+char	*ft_strjoin(char const *s1, char const *s2);
 
 #endif