Added Dynamic string struct (no test, no doc)

1 files changed, 31 insertions, 0 deletions

diff --git a/src/dstr/ft_dstrinsert.c b/src/dstr/ft_dstrinsert.c
new file mode 100644
index 0000000..6a1486c
--- /dev/null
+++ b/src/dstr/ft_dstrinsert.c
@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_dstrinsert.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/04/03 14:00:44 by charles           #+#    #+#             */
+/*   Updated: 2020/04/03 15:09:52 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft_dstr.h"
+
+t_ftdstr	*ft_dstrinsert(t_ftdstr *dstr, char *inserted, size_t i)
+{
+	size_t	inserted_len;
+
+	if (i > dstr->capacity)
+		return (NULL);
+	inserted_len = ft_strlen(inserted);
+	if (dstr->capacity - dstr->length - 1 < inserted_len)
+		if (ft_dstrgrow(dstr, dstr->capacity + inserted_len + 1) == NULL)
+			return (NULL);
+	ft_memmove(dstr->str + i + inserted_len,
+				dstr->str + i,
+				dstr->length - i + 1);
+	ft_memcpy(dstr->str + i, inserted, inserted_len);
+	dstr->length += inserted_len;
+	return (dstr);
+}