Add libft and input handling

1 files changed, 54 insertions, 0 deletions

diff --git a/libft/ft_strjoin.c b/libft/ft_strjoin.c
new file mode 100644
index 0000000..526592b
--- /dev/null
+++ b/libft/ft_strjoin.c
@@ -0,0 +1,54 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strjoin.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/03/07 10:15:33 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/03/10 14:02:07 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static int	copy_str(char *dst, const char *src)
+{
+	int	i;
+
+	i = 0;
+	while (src[i])
+	{
+		dst[i] = src[i];
+		i++;
+	}
+	return (i);
+}
+
+char	*ft_strjoin(char const *s1, char const *s2)
+{
+	int		len;
+	char	*result;
+
+	len = ft_strlen(s1) + ft_strlen(s2);
+	result = malloc(len + 1);
+	if (result)
+	{
+		result[len] = '\0';
+		len = copy_str(result, s1);
+		len = copy_str(result + len, s2);
+		return (result);
+	}
+	else
+		return (0);
+}
+
+/* #include <stdio.h> */
+
+/* int	main(void) */
+/* { */
+/* 	char	s1[] = "Hello "; */
+/* 	char	s2[] = "World"; */
+
+/* 	printf("%s\n", ft_strjoin(s1, s2)); */
+/* } */