ft_strrchr: intial implementation

Makefile

@@ -6,7 +6,7 @@
 #    By: kcolin <marvin@42.fr>                      +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2024/10/14 13:43:59 by kcolin            #+#    #+#              #
-#    Updated: 2024/10/16 10:46:03 by kcolin           ###   ########.fr        #
+#    Updated: 2024/10/16 10:46:46 by kcolin           ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -26,7 +26,8 @@ SOURCES = ft_isalpha.c \
 	ft_strlcat.c \
 	ft_toupper.c \
 	ft_tolower.c \
-	ft_strchr.c
+	ft_strchr.c \
+	ft_strrchr.c
 OBJECTS = $(SOURCES:.c=.o)
 CC = gcc
 

ft_strrchr.c

@@ -0,0 +1,46 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strrchr.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/16 10:34:23 by kcolin            #+#    #+#             */
+/*   Updated: 2024/10/16 10:48:57 by kcolin           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_strrchr(const char *s, int c)
+{
+	int	i;
+
+	i = ft_strlen(s);
+	while (i != 0)
+	{
+		i--;
+		if (s[i] == c)
+			return ((char *)s + i);
+	}
+	return (0);
+}
+
+/*
+#include <stdio.h>
+
+int	main(int argc, char **argv)
+{
+	char	*result;
+
+	if (argc > 2)
+	{
+		result = ft_strrchr(argv[1], argv[2][0]);
+		if (result == 0)
+			printf("(null)\n");
+		else
+			printf("%s\n", result);
+	}
+	return (0);
+}
+*/

libft.h

@@ -34,5 +34,6 @@ int		ft_toupper(int c);
 int		ft_tolower(int c);
 
 char	*ft_strchr(const char *s, int c);
+char	*ft_strrchr(const char *s, int c);
 
 #endif