strdup, toupper, tolower

nopbxlr · May 4, 2022 · f9c7219 · f9c7219
1 parent 088b8b1
commit f9c7219
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Showing 4 changed files with 79 additions and 1 deletion.
diff --git a/includes/libft.h b/includes/libft.h
@@ -6,7 +6,7 @@
 /*   By: ctherin <ctherin@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/05/02 17:49:13 by ctherin           #+#    #+#             */
-/*   Updated: 2022/05/04 20:45:45 by ctherin          ###   ########.fr       */
+/*   Updated: 2022/05/04 21:11:16 by ctherin          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -32,5 +32,8 @@ void	*ft_memccpy(void *dest, const void *src, int c, size_t n);
 int		ft_strncmp(const char *s1, const char *s2, size_t n);
 char	*ft_strnstr(const char *big, const char *little, size_t len);
 int		ft_memcmp(const void *s1, const void *s2, size_t n);
+char	*ft_strdup(const char *s);
+int		ft_toupper(int c);
+int		ft_tolower(int c);
 
 #endif
diff --git a/srcs/ft_strdup.c b/srcs/ft_strdup.c
@@ -0,0 +1,33 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strdup.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ctherin <ctherin@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/05/04 21:04:57 by ctherin           #+#    #+#             */
+/*   Updated: 2022/05/04 21:05:37 by ctherin          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include<stdlib.h>
+
+char	*ft_strdup(const char *s)
+{
+	int		sz;
+	int		i;
+	char	*dest;
+
+	sz = 0;
+	i = 0;
+	while (s[sz])
+		sz++;
+	dest = malloc (sizeof(char) * (sz + 1));
+	while (i < sz)
+	{
+		dest[i] = s[i];
+		i++;
+	}
+	dest[i] = '\0';
+	return (dest);
+}
diff --git a/srcs/ft_tolower.c b/srcs/ft_tolower.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_tolower.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ctherin <ctherin@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/05/04 21:10:17 by ctherin           #+#    #+#             */
+/*   Updated: 2022/05/04 21:10:40 by ctherin          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	ft_tolower(int c)
+{
+	unsigned char	a;
+
+	a = (unsigned char)c;
+	if (a >= 'A' && a <= 'Z')
+		return (c + 32);
+	return (c);
+}
diff --git a/srcs/ft_toupper.c b/srcs/ft_toupper.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_toupper.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ctherin <ctherin@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/05/04 21:07:38 by ctherin           #+#    #+#             */
+/*   Updated: 2022/05/04 21:10:45 by ctherin          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	ft_toupper(int c)
+{
+	unsigned char	a;
+
+	a = (unsigned char)c;
+	if (a >= 'a' && a <= 'z')
+		return (c - 32);
+	return (c);
+}