From a4d9777bb6409a73f0d7f372e0b437963b54e7ba Mon Sep 17 00:00:00 2001
From: Lukas Jiriste <ljiriste@student.42prague.com>
Date: Fri, 28 Jun 2024 12:35:06 +0200
Subject: [PATCH] Add a function to deep copy a t_vec

---
 Makefile             |  1 +
 ft_arr/ft_vec_copy.c | 57 ++++++++++++++++++++++++++++++++++++++++++++
 inc/ft_arr.h         |  6 ++++-
 3 files changed, 63 insertions(+), 1 deletion(-)
 create mode 100644 ft_arr/ft_vec_copy.c

diff --git a/Makefile b/Makefile
index 6ed432a..d017796 100644
--- a/Makefile
+++ b/Makefile
@@ -123,6 +123,7 @@ SRCarr	:=	ft_vec_init.c				\
 			ft_vec_free.c				\
 			ft_vec_find.c				\
 			ft_vec_find_index.c			\
+			ft_vec_copy.c				\
 										\
 			ft_mat_init.c				\
 			ft_mat_append.c				\
diff --git a/ft_arr/ft_vec_copy.c b/ft_arr/ft_vec_copy.c
new file mode 100644
index 0000000..46e5100
--- /dev/null
+++ b/ft_arr/ft_vec_copy.c
@@ -0,0 +1,57 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_vec_copy.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ljiriste <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/28 12:02:22 by ljiriste          #+#    #+#             */
+/*   Updated: 2024/06/28 12:34:13 by ljiriste         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_arr.h"
+#include <stdlib.h>
+
+static t_arr_stat	prepare_for_copy(t_vec *dest, const t_vec *src)
+{
+	t_arr_stat	res;
+
+	res = ft_vec_init(dest, src->el_size);
+	if (res != success)
+		return (res);
+	res = ft_vec_reserve(dest, src->capacity);
+	return (res);
+}
+
+//	This function the exact current state of src to dest.
+//	copy_el function enables deep copy
+//	free_el function enbales cleaning after itself in a case of error
+t_arr_stat	ft_vec_copy(t_vec *dest, const t_vec *src,
+		t_ft_stat (*copy_el)(void *, const void *), void (*free_el)(void *))
+{
+	size_t		i;
+	void		*tmp;
+	t_arr_stat	res;
+
+	tmp = malloc(dest->el_size);
+	if (!tmp)
+		return (alloc_fail);
+	res = prepare_for_copy(dest, src);
+	if (res != success)
+		return (res);
+	i = 0;
+	while (i < src->size && res == success)
+	{
+		res = copy_el(tmp, ft_vec_caccess(src, i));
+		if (res != success)
+			break ;
+		res = ft_vec_append(dest, tmp);
+		if (res != success && free_el)
+			free_el(tmp);
+	}
+	if (res != success)
+		ft_vec_free(dest, free_el);
+	free(tmp);
+	return (res);
+}
diff --git a/inc/ft_arr.h b/inc/ft_arr.h
index a5a0ca7..02e7ddd 100644
--- a/inc/ft_arr.h
+++ b/inc/ft_arr.h
@@ -6,7 +6,7 @@
 /*   By: ljiriste <ljiriste@student.42prague.com>   +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/12/09 13:58:15 by ljiriste          #+#    #+#             */
-/*   Updated: 2024/06/21 11:43:34 by ljiriste         ###   ########.fr       */
+/*   Updated: 2024/06/28 12:30:47 by ljiriste         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -72,6 +72,10 @@ const void	*ft_vec_caccess(const t_vec *vec, size_t index);
  * Also implement access function that casts to desired type
  * eg. int *int_access(t_vec *vec, size_t ind){return ((int *)vec->vec + ind);}
  */
+t_arr_stat	ft_vec_copy(t_vec *dest, const t_vec *src,
+				t_ft_stat (*copy_el)(void *, const void *),
+				void (*free_el)(void *));
+
 void		*ft_vec_find(t_vec *vec, void *wanted);
 t_arr_stat	ft_vec_find_index(t_vec *vec, void *wanted, size_t *index);
 
-- 
2.30.2