c03 and begin c04

7 files changed, 264 insertions, 0 deletions

diff --git a/c03/ex00/ft_strcmp.c b/c03/ex00/ft_strcmp.c
new file mode 100644
index 0000000..9131204
--- /dev/null
+++ b/c03/ex00/ft_strcmp.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strcmp.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 10:39:51 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/05 16:07:46 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	ft_strcmp(char *s1, char *s2)
+{
+	while (*s1 == *s2 && *s1 && *s2)
+	{
+		s1++;
+		s2++;
+	}
+	return *s1 - *s2;
+}
diff --git a/c03/ex01/ft_strncmp.c b/c03/ex01/ft_strncmp.c
new file mode 100644
index 0000000..1dc2639
--- /dev/null
+++ b/c03/ex01/ft_strncmp.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strncmp.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 10:50:46 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/05 16:06:57 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	ft_strncmp(char *s1, char *s2, unsigned int n)
+{
+	unsigned int	i;
+
+	i = 0;
+	while (s1[i] == s2[i] && s1[i] && s2[i] && i < n - 1)
+		i++;
+	return s1[i] - s2[i];
+}
diff --git a/c03/ex02/ft_strcat.c b/c03/ex02/ft_strcat.c
new file mode 100644
index 0000000..1ec10c0
--- /dev/null
+++ b/c03/ex02/ft_strcat.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strcat.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 11:52:56 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/05 12:58:36 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+char *ft_strcat(char *dest, char *src)
+{
+	char *dest_head;
+
+	dest_head = dest;
+	while (*dest)
+		dest++;
+	while (*src)
+	{
+		*dest = *src;
+		dest++;
+		src++;
+	}
+		*dest = *src;
+	return dest_head;
+}
diff --git a/c03/ex03/ft_strncat.c b/c03/ex03/ft_strncat.c
new file mode 100644
index 0000000..c28fb38
--- /dev/null
+++ b/c03/ex03/ft_strncat.c
@@ -0,0 +1,29 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strncat.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 13:02:04 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/05 15:33:07 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+char *ft_strncat(char *dest, char *src, unsigned int nb)
+{
+	unsigned int	i;
+	char			*dest_end;
+
+	i = 0;
+	while (dest[i] != '\0')
+		i++;
+	dest_end = dest + i;
+	i = 0;
+	while (i < nb && src[i] != '\0')
+	{
+		dest_end[i] = src[i];
+		i++;
+	}
+	return (dest);
+}
diff --git a/c03/ex04/ft_strstr.c b/c03/ex04/ft_strstr.c
new file mode 100644
index 0000000..e27ffc8
--- /dev/null
+++ b/c03/ex04/ft_strstr.c
@@ -0,0 +1,48 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strstr.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 15:20:54 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/05 16:46:57 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#define MY_NULL 0x0
+
+int	ft_strlen(char *str)
+{
+	int counter;
+
+	counter = 0;
+	while (*str != '\0')
+	{
+		counter++;
+		str++;
+	}
+	return (counter);
+}
+
+char *ft_strstr(char *str, char *to_find)
+{
+	int	i;
+
+	if (!ft_strlen(to_find))
+		return str;
+	while (*str)
+	{
+		i = 0;
+		while (to_find[i] && str[i])
+		{
+			if (to_find[i] != str[i])
+				break;
+			i++;
+		}
+		if (i == ft_strlen(to_find))
+			return (str);
+		str++;
+	}
+	return (MY_NULL);
+}
diff --git a/c03/ex05/ft_strlcat.c b/c03/ex05/ft_strlcat.c
new file mode 100644
index 0000000..5cacc4d
--- /dev/null
+++ b/c03/ex05/ft_strlcat.c
@@ -0,0 +1,44 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strlcat.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/05 15:43:34 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 07:12:28 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+unsigned int	my_strlen(char *str)
+{
+	int counter;
+
+	counter = 0;
+	while (*str != '\0')
+	{
+		counter++;
+		str++;
+	}
+	return (counter);
+}
+
+unsigned int	ft_strlcat(char *dest, char *src, unsigned int size)
+{
+	unsigned int	i;
+	unsigned int	len_src;
+	unsigned int	len_dest;
+
+	len_src = my_strlen(src);
+	len_dest = my_strlen(dest);
+	if (!len_src)
+		return (len_dest);
+	i = len_dest - 1;
+	while (i < size - len_dest - 1 && src[i])
+	{
+		dest[i] = src[i];
+		i++;
+	}
+	dest[i] = '\0';
+	return (len_src + len_dest);
+}
diff --git a/c03/main.c b/c03/main.c
new file mode 100644
index 0000000..9c1add8
--- /dev/null
+++ b/c03/main.c
@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <string.h>
+#include "ex00/ft_strcmp.c"
+#include "ex01/ft_strncmp.c"
+#include "ex02/ft_strcat.c"
+#include "ex03/ft_strncat.c"
+#include "ex04/ft_strstr.c"
+#include "ex05/ft_strlcat.c"
+
+int main()
+{
+	char s1[] = "bonjour";
+	char s2[] = "bonjouj";
+	printf("%d : %d\n", ft_strcmp(s1, s2), strcmp(s1, s2));
+
+	unsigned int size = 10;
+	printf("%d : %d\n", ft_strncmp(s1, s2, size), strncmp(s1, s2, size));
+
+	char *head;
+	char dest[10] = "abc";
+	char src[] = "defg";
+	head =  ft_strcat(dest, src);
+	printf("\n%s ", head);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", head[i]);
+	char _dest[10] = "abc";
+	head = strcat(_dest, src);
+	printf("\n%s ", head);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", head[i]);
+
+	unsigned int nsize = 1;
+	char *nhead;
+	char ndest[10] = "abc";
+	char nsrc[] = "defg";
+	nhead =  ft_strncat(ndest, nsrc, nsize);
+	printf("\n%s ", nhead);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", nhead[i]);
+	char _ndest[10] = "abc";
+	nhead = strncat(_ndest, nsrc, nsize);
+	printf("\n%s ", nhead);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", nhead[i]);
+
+	printf("\n");
+	char *haystack = "abcdefg";
+	char *needle = "abcdefg";
+	char *found;
+	found = ft_strstr(haystack, needle);
+	if (found)
+		for (int i = 0; i < 5; i++)
+			printf("%d ", found[i]);
+	printf("\n%s\n", found);
+	found = strstr(haystack, needle);
+	if (found)
+		for (int i = 0; i < 5; i++)
+			printf("%d ", found[i]);
+	printf("\n%s\n", found);
+
+	unsigned int lsize = 100;
+	char ldest[100] = "abcdef";
+	char lsrc[] = "d";
+	printf("\nsize %u, ", ft_strlcat(ldest, lsrc, lsize));
+	printf("%s ", ldest);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", ldest[i]);
+	char _ldest[100] = "abcdef";
+	printf("\nsize %lu, ", strlcat(_ldest, lsrc, lsize));
+	printf("%s ", ldest);
+	for (int i = 0; i < 15; i++)
+		printf("%d ", ldest[i]);
+}