#include <debug.h>

#include "struct.h"
#include "remove.h"

void linked_list_remove(
    struct linked_list* list,
    struct value* element,
    size_t link_offset)
{
    ENTER;
    
    assert(list->head);
    
    struct link* link = (void*) element + link_offset;
    
    assert(link->in_set);
    
    if (link->prev)
    {
        struct link* prev_link = (void*) link->prev + link_offset;
        
        prev_link->next = link->next;
    }
    else
    {
        list->head = link->next;
    }
    
    if (link->next)
    {
        struct link* next_link = (void*) link->next + link_offset;
        
        next_link->prev = link->prev;
    }
    else
    {
        list->tail = link->prev;
    }
    
    link->prev = link->next = NULL;
    link->in_set = false;
    
    EXIT;
}