BLI_listbase.h

Go to the documentation of this file.

/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_compiler_attrs.h"
#include "BLI_utildefines.h"
#include "DNA_listBase.h"
// struct ListBase;
// struct LinkData;
 
#ifdef __cplusplus
extern "C" {
#endif
 
int BLI_findindex(const struct ListBase *listbase, const void *vlink) ATTR_WARN_UNUSED_RESULT
    ATTR_NONNULL(1);
int BLI_findstringindex(const struct ListBase *listbase,
                        const char *id,
                        int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
 
ListBase BLI_listbase_from_link(struct Link *some_link);
 
/* Find forwards. */
 
void *BLI_findlink(const struct ListBase *listbase, int number) ATTR_WARN_UNUSED_RESULT
    ATTR_NONNULL(1);
 
void *BLI_findlinkfrom(struct Link *start, int step) ATTR_WARN_UNUSED_RESULT;
 
void *BLI_findstring(const struct ListBase *listbase,
                     const char *id,
                     int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_findstring_ptr(const struct ListBase *listbase,
                         const char *id,
                         int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_listbase_findafter_string_ptr(struct Link *link, const char *id, const int offset);
 
void *BLI_findptr(const struct ListBase *listbase,
                  const void *ptr,
                  int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_listbase_bytes_find(const ListBase *listbase,
                              const void *bytes,
                              size_t bytes_size,
                              int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1, 2);
void *BLI_listbase_string_or_index_find(const struct ListBase *listbase,
                                        const char *string,
                                        size_t string_offset,
                                        int index) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
 
/* Find backwards. */
 
void *BLI_rfindlink(const struct ListBase *listbase, int number) ATTR_WARN_UNUSED_RESULT
    ATTR_NONNULL(1);
void *BLI_rfindstring(const struct ListBase *listbase,
                      const char *id,
                      int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_rfindstring_ptr(const struct ListBase *listbase,
                          const char *id,
                          int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_rfindptr(const struct ListBase *listbase,
                   const void *ptr,
                   int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_listbase_bytes_rfind(const ListBase *listbase,
                               const void *bytes,
                               size_t bytes_size,
                               int offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1, 2);
 
void BLI_freelistN(struct ListBase *listbase) ATTR_NONNULL(1);
void BLI_addtail(struct ListBase *listbase, void *vlink) ATTR_NONNULL(1);
void BLI_remlink(struct ListBase *listbase, void *vlink) ATTR_NONNULL(1);
bool BLI_remlink_safe(struct ListBase *listbase, void *vlink) ATTR_NONNULL(1);
void *BLI_pophead(ListBase *listbase) ATTR_NONNULL(1);
void *BLI_poptail(ListBase *listbase) ATTR_NONNULL(1);
 
void BLI_addhead(struct ListBase *listbase, void *vlink) ATTR_NONNULL(1);
void BLI_insertlinkbefore(struct ListBase *listbase, void *vnextlink, void *vnewlink)
    ATTR_NONNULL(1);
void BLI_insertlinkafter(struct ListBase *listbase, void *vprevlink, void *vnewlink)
    ATTR_NONNULL(1);
void BLI_insertlinkreplace(ListBase *listbase, void *vreplacelink, void *vnewlink)
    ATTR_NONNULL(1, 2, 3);
void BLI_listbase_sort(struct ListBase *listbase, int (*cmp)(const void *, const void *))
    ATTR_NONNULL(1, 2);
void BLI_listbase_sort_r(ListBase *listbase,
                         int (*cmp)(void *, const void *, const void *),
                         void *thunk) ATTR_NONNULL(1, 2);
bool BLI_listbase_link_move(ListBase *listbase, void *vlink, int step) ATTR_NONNULL();
bool BLI_listbase_move_index(ListBase *listbase, int from, int to) ATTR_NONNULL();
void BLI_freelist(struct ListBase *listbase) ATTR_NONNULL(1);
int BLI_listbase_count_at_most(const struct ListBase *listbase,
                               int count_max) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
BLI_INLINE bool BLI_listbase_count_is_equal_to(const struct ListBase *listbase,
                                               const int count_cmp)
{
  return BLI_listbase_count_at_most(listbase, count_cmp + 1) == count_cmp;
}
 
int BLI_listbase_count(const struct ListBase *listbase) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void BLI_freelinkN(struct ListBase *listbase, void *vlink) ATTR_NONNULL(1);
 
void BLI_listbase_swaplinks(struct ListBase *listbase, void *vlinka, void *vlinkb)
    ATTR_NONNULL(1, 2);
void BLI_listbases_swaplinks(struct ListBase *listbasea,
                             struct ListBase *listbaseb,
                             void *vlinka,
                             void *vlinkb) ATTR_NONNULL(2, 3);
 
void BLI_movelisttolist(struct ListBase *dst, struct ListBase *src) ATTR_NONNULL(1, 2);
void BLI_movelisttolist_reverse(struct ListBase *dst, struct ListBase *src) ATTR_NONNULL(1, 2);
void BLI_listbase_split_after(struct ListBase *original_listbase,
                              struct ListBase *split_listbase,
                              void *vlink) ATTR_NONNULL(1, 2);
void BLI_duplicatelist(struct ListBase *dst, const struct ListBase *src) ATTR_NONNULL(1, 2);
void BLI_listbase_reverse(struct ListBase *lb) ATTR_NONNULL(1);
void BLI_listbase_rotate_first(struct ListBase *lb, void *vlink) ATTR_NONNULL(1, 2);
void BLI_listbase_rotate_last(struct ListBase *lb, void *vlink) ATTR_NONNULL(1, 2);
 
BLI_INLINE bool BLI_listbase_is_single(const struct ListBase *lb)
{
  return (lb->first && lb->first == lb->last);
}
BLI_INLINE bool BLI_listbase_is_empty(const struct ListBase *lb)
{
  return (lb->first == (void *)0);
}
BLI_INLINE void BLI_listbase_clear(struct ListBase *lb)
{
  lb->first = lb->last = (void *)0;
}
 
bool BLI_listbase_validate(struct ListBase *lb);
 
BLI_INLINE bool BLI_listbase_equal(const struct ListBase *a, const struct ListBase *b)
{
  if (a == NULL) {
    return b == NULL;
  }
  if (b == NULL) {
    return false;
  }
  return a->first == b->first && a->last == b->last;
}
 
struct LinkData *BLI_genericNodeN(void *data);
 
#define LISTBASE_CIRCULAR_FORWARD_BEGIN(type, lb, lb_iter, lb_init) \
  if ((lb)->first && (lb_init || (lb_init = (type)(lb)->first))) { \
    lb_iter = (type)(lb_init); \
    do {
#define LISTBASE_CIRCULAR_FORWARD_END(type, lb, lb_iter, lb_init) \
  } \
  while ((lb_iter = (lb_iter)->next ? (type)(lb_iter)->next : (type)(lb)->first), \
         (lb_iter != lb_init)) \
    ; \
  } \
  ((void)0)
 
#define LISTBASE_CIRCULAR_BACKWARD_BEGIN(type, lb, lb_iter, lb_init) \
  if ((lb)->last && (lb_init || (lb_init = (type)(lb)->last))) { \
    lb_iter = lb_init; \
    do {
#define LISTBASE_CIRCULAR_BACKWARD_END(type, lb, lb_iter, lb_init) \
  } \
  while ((lb_iter = (lb_iter)->prev ? (lb_iter)->prev : (type)(lb)->last), (lb_iter != lb_init)) \
    ; \
  } \
  ((void)0)
 
#define LISTBASE_FOREACH(type, var, list) \
  for (type var = (type)((list)->first); var != NULL; var = (type)(((Link *)(var))->next))
 
#define LISTBASE_FOREACH_INDEX(type, var, list, index_var) \
  for (type var = (((void)(index_var = 0)), (type)((list)->first)); var != NULL; \
       var = (type)(((Link *)(var))->next), index_var++)
 
#define LISTBASE_FOREACH_BACKWARD(type, var, list) \
  for (type var = (type)((list)->last); var != NULL; var = (type)(((Link *)(var))->prev))
 
#define LISTBASE_FOREACH_MUTABLE(type, var, list) \
  for (type var = (type)((list)->first), *var##_iter_next; \
       ((var != NULL) ? ((void)(var##_iter_next = (type)(((Link *)(var))->next)), 1) : 0); \
       var = var##_iter_next)
 
#define LISTBASE_FOREACH_BACKWARD_MUTABLE(type, var, list) \
  for (type var = (type)((list)->last), *var##_iter_prev; \
       ((var != NULL) ? ((void)(var##_iter_prev = (type)(((Link *)(var))->prev)), 1) : 0); \
       var = var##_iter_prev)
 
#ifdef __cplusplus
}
#endif
 
#ifdef __cplusplus
BLI_INLINE bool operator==(const ListBase &a, const ListBase &b)
{
  return BLI_listbase_equal(&a, &b);
}
#endif