root / proj / libs / classes / include / list.h @ 325
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| 1 | 226 | up20180642 | #ifndef LIST_H_INCLUDED
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| 2 | #define LIST_H_INCLUDED
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| 3 | |||
| 4 | struct list_node;
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| 5 | 316 | up20180642 | /**
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| 6 | * @brief List node.
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| 7 | *
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| 8 | * Can be used like a C++ std::list iterator.
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| 9 | * A list node stores a void* to allow for more flexibility.
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| 10 | */
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| 11 | 226 | up20180642 | typedef struct list_node list_node_t; |
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| 13 | 316 | up20180642 | /**
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| 14 | * @brief Construct list node.
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| 15 | * @param p Pointer to previous list node
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| 16 | * @param n Pointer to next list node
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| 17 | * @param val Value to be stored in the list node
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| 18 | * @return Pointer to created list node
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| 19 | */
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| 20 | 226 | up20180642 | list_node_t* (list_node_ctor)(list_node_t *p, list_node_t *n, void *val);
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| 21 | 316 | up20180642 | /**
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| 22 | * @brief Destruct list node.
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| 23 | * @param p Pointer to list node to be destroyed
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| 24 | */
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| 25 | 226 | up20180642 | void (list_node_dtor)(list_node_t *p);
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| 26 | 316 | up20180642 | /**
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| 27 | * @brief Get next node.
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| 28 | * @param p Pointer to list node
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| 29 | * @return Pointer to next list node
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| 30 | */
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| 31 | 226 | up20180642 | list_node_t* (list_node_next)(const list_node_t *p);
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| 32 | 316 | up20180642 | /**
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| 33 | * @brief Get previous node.
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| 34 | * @param p Pointer to list node
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| 35 | * @return Pointer to previous list node
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| 36 | */
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| 37 | 226 | up20180642 | list_node_t* (list_node_prev)(const list_node_t *p);
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| 38 | 316 | up20180642 | /**
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| 39 | * @brief Get value stored in the node.
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| 40 | * @param p Pointer to list node
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| 41 | * @return Pointer to the stored value (which is in turn a void*).
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| 42 | */
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| 43 | 226 | up20180642 | void** (list_node_val )(list_node_t *p);
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| 44 | |||
| 45 | struct list;
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| 46 | 316 | up20180642 | /**
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| 47 | * @brief List.
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| 48 | *
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| 49 | * Can be used like a C++ std::list.
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| 50 | * A list_t is a sequence of list_node_t nodes, that store void* to allow for more flexibility.
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| 51 | */
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| 52 | 226 | up20180642 | typedef struct list list_t; |
| 53 | |||
| 54 | 316 | up20180642 | /**
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| 55 | * @brief Construct empty list.
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| 56 | * @return Pointer to created list
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| 57 | */
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| 58 | list_t* (list_ctor) (void);
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| 59 | /**
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| 60 | * @brief Destruct list.
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| 61 | *
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| 62 | * A list can only be destroyed once it is empty.
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| 63 | * This is because a list stores void*, whose memory most likely need to be free'd.
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| 64 | * @param l Pointer to list to be destroyed
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| 65 | * @return SUCCESS if the destruction was successful, other value otherwise.
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| 66 | */
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| 67 | int (list_dtor) (list_t *l);
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| 68 | /**
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| 69 | * @brief Get pointer to the first node of the list.
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| 70 | * @param l Pointer to list
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| 71 | * @return Pointer to first node of the list.
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| 72 | */
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| 73 | list_node_t* (list_begin) (list_t *l); |
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| 74 | /**
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| 75 | * @brief Get pointer to the past-the-end node of the list.
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| 76 | * @param l Pointer to list
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| 77 | * @return Pointer to past-the-end node of the list
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| 78 | */
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| 79 | list_node_t* (list_end) (list_t *l); |
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| 80 | /**
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| 81 | * @brief Get size of the list.
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| 82 | * @param l Pointer to list
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| 83 | * @return Size of the list
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| 84 | */
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| 85 | size_t (list_size) (const list_t *l);
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| 86 | /**
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| 87 | * @brief Know if list is empty or not.
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| 88 | * @param l Pointer to list
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| 89 | * @return true if the list is empty (size is zero), false otherwise
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| 90 | */
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| 91 | int (list_empty) (const list_t *l); |
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| 92 | /**
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| 93 | * @brief Insert value in list.
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| 94 | * @param l Pointer to list
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| 95 | * @param position Pointer to node, before which the new value will be inserted
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| 96 | * @param val Value to be inserted before position
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| 97 | * @return Pointer to newly-created node
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| 98 | */
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| 99 | list_node_t* (list_insert) (list_t *l, list_node_t *position, void *val);
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| 100 | /**
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| 101 | * @brief Erase value in list.
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| 102 | * @param l Pointer to list
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| 103 | * @param position Node to be deleted
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| 104 | * @return Value contained in the deleted node, which must be free'd if appropriate
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| 105 | */
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| 106 | void* (list_erase) (list_t *l, list_node_t *position);
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| 107 | /**
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| 108 | * @brief Insert new value at the end of the list.
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| 109 | * @param l Pointer to list
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| 110 | * @param val Value to be inserted
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| 111 | */
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| 112 | 275 | up20180642 | void (list_push_back)(list_t *l, void *val); |
| 113 | 316 | up20180642 | /**
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| 114 | * @brief Get first element of the list.
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| 115 | * @param l Pointer to list
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| 116 | * @return Pointer to value at the beginning of the list
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| 117 | */
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| 118 | void** (list_front) (list_t *l);
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| 119 | /**
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| 120 | * @brief Erase first element of the list.
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| 121 | * @param l Pointer to list
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| 122 | */
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| 123 | 275 | up20180642 | void (list_pop_front)(list_t *l);
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| 124 | 316 | up20180642 | /**
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| 125 | * @brief Find value in list.
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| 126 | *
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| 127 | * Values are found by direct comparison of void*
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| 128 | * @param l Pointer to list
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| 129 | * @param val Pointer to value to be found in the list
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| 130 | * @return Node whose value compares equal to val, or past-the-end node if not found
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| 131 | */
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| 132 | list_node_t* (list_find) (list_t *l, void *val);
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| 133 | 226 | up20180642 | |
| 134 | #endif //LIST_H_INCLUDED |