correction pointeur liste null dans lstadd_back

This commit is contained in:
Hugo LAMY
2019-11-20 21:03:51 +01:00
parent 3a56265dfb
commit 33b1147968
5 changed files with 100 additions and 21 deletions

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@@ -92,7 +92,7 @@ void ft_lstadd_back(t_list **alst, t_list *new)
tmp = tmp->next;
tmp->next = new;
}
new->content = NULL;
new->next = NULL;
}
}

99
srcs/bonus/ft_lstdelone.c Normal file
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@@ -0,0 +1,99 @@
#include <libc.h>
typedef struct s_list
{
void *content;
struct s_list *next;
} t_list;
void *ft_memcpy(void *dst, const void *src, size_t n)
{
size_t i;
char *ptr;
char *ptr2;
ptr = (char *)dst;
ptr2 = (char *)src;
i = -1;
while (++i < n)
ptr[i] = ptr2[i];
return (dst);
}
t_list *ft_lstnew(void *content)
{
t_list *lst;
if (!(lst = (t_list *)malloc(sizeof(*lst))))
return (NULL);
if (!content)
lst->content = NULL;
else
{
if (!(lst->content = malloc(sizeof(content))))
return (NULL);
ft_memcpy(lst->content, content, sizeof(content));
}
lst->next = NULL;
return (lst);
}
void ft_lstadd_back(t_list **alst, t_list *new)
{
t_list *tmp;
if (alst)
{
tmp = *alst;
if (!tmp)
*alst = new;
else
{
while (tmp->next)
tmp = tmp->next;
tmp->next = new;
}
new->next = NULL;
}
}
void ft_lstdelone(t_list *lst, void (*del)(void *));
int main(void)
{
char tresor;
char matos;
char friends;
t_list *toto;
t_list *tmp;
tresor = 'a';
matos = 'b';
friends = 'c';
toto = ft_lstnew(&tresor);
printf("toto->data :%c\n",*(char*)(toto->content));
tmp = ft_lstnew(&matos);
ft_lstadd_back(&toto, tmp);
printf("----------------------\n");
printf("toto->data :%c\n",*(char*)(toto->content));
printf("toto->nxt->data :%c\n",*(char*)(toto->next->content));
tmp = ft_lstnew(&friends);
ft_lstadd_back(&toto, tmp);
printf("----------------------\n");
printf("toto->data :%c\n",*(char*)(toto->content));
printf("toto->nxt->data :%c\n",*(char*)(toto->next->content));
printf("toto->nxt->nxt->data:%c\n",*(char*)(toto->next->next->content));
printf("toto->nxt->nxt->nxt :%s\n",(char*)(toto->next->next->next));
return (0);
}
//#include "libft.h"
void ft_lstdelone(t_list *lst, void (*del)(void *))
{
del(lst->content);
free(lst);
lst = NULL;
}

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@@ -1,20 +0,0 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_lstdelone.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/11/14 21:10:59 by hulamy #+# #+# */
/* Updated: 2018/11/16 13:59:22 by hulamy ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
void ft_lstdelone(t_list **alst, void (*del)(void *, size_t))
{
del((*alst)->content, (*alst)->content_size);
free(*alst);
*alst = NULL;
}