/*****************************************************************************/
/* */
-/* coll.h */
+/* coll.h */
/* */
-/* Collection (dynamic array) */
+/* Collection (dynamic array) */
/* */
/* */
/* */
-/* (C) 2000-2001 Ullrich von Bassewitz */
-/* Wacholderweg 14 */
-/* D-70597 Stuttgart */
-/* EMail: uz@cc65.org */
+/* (C) 2000-2011, Ullrich von Bassewitz */
+/* Roemerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/*****************************************************************************/
-/* Data */
+/* Data */
/*****************************************************************************/
/* An array of pointers that grows if needed */
typedef struct Collection Collection;
struct Collection {
- unsigned Count; /* Number of items in the list */
- unsigned Size; /* Size of allocated array */
- void** Items; /* Array with dynamic size */
+ unsigned Count; /* Number of items in the list */
+ unsigned Size; /* Size of allocated array */
+ void** Items; /* Array with dynamic size */
};
+/* An empty collection */
+extern const Collection EmptyCollection;
+
/* Initializer for static collections */
-#define STATIC_COLLECTION_INITIALIZER { 0, 0, 0 }
+#define STATIC_COLLECTION_INITIALIZER { 0, 0, 0 }
+
+/* Initializer for auto collections */
+#define AUTO_COLLECTION_INITIALIZER EmptyCollection
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
void FreeCollection (Collection* C);
/* Free a collection */
+void CollGrow (Collection* C, unsigned Size);
+/* Grow the collection C so it is able to hold Size items without a resize
+ * being necessary. This can be called for performance reasons if the number
+ * of items to be placed in the collection is known in advance.
+ */
+
#if defined(HAVE_INLINE)
INLINE unsigned CollCount (const Collection* C)
/* Return the number of items in the collection */
return C->Count;
}
#else
-# define CollCount(C) (C)->Count
+# define CollCount(C) (C)->Count
#endif
void CollInsert (Collection* C, void* Item, unsigned Index);
CollInsert (C, Item, C->Count);
}
#else
-# define CollAppend(C, Item) CollInsert (C, Item, (C)->Count)
+void CollAppend (Collection* C, void* Item);
+/* Append an item to the end of the collection */
#endif
#if defined(HAVE_INLINE)
-INLINE void* CollAt (Collection* C, unsigned Index)
+INLINE void* CollAt (const Collection* C, unsigned Index)
/* Return the item at the given index */
{
/* Check the index */
return C->Items[Index];
}
#else
-# define CollAt(C, Index) \
- (PRECONDITION ((Index) < (C)->Count), \
- (C)->Items[(Index)])
+void* CollAt (const Collection* C, unsigned Index);
+/* Return the item at the given index */
#endif
#if defined(HAVE_INLINE)
-INLINE void* CollAtUnchecked (Collection* C, unsigned Index)
+INLINE void* CollAtUnchecked (const Collection* C, unsigned Index)
/* Return the item at the given index */
{
/* Return the element */
return C->Items[Index];
}
#else
-# define CollAtUnchecked(C, Index) ((C)->Items[(Index)])
+# define CollAtUnchecked(C, Index) ((C)->Items[(Index)])
#endif
#if defined(HAVE_INLINE)
return C->Items[Index];
}
#else
-# define CollConstAt(C, Index) \
- (PRECONDITION ((Index) < (C)->Count), \
- (C)->Items[(Index)])
+const void* CollConstAt (const Collection* C, unsigned Index);
+/* Return the item at the given index */
#endif
#if defined(HAVE_INLINE)
return C->Items[C->Count-1];
}
#else
-# define CollLast(C) \
- (PRECONDITION ((C)->Count > 0), \
- (C)->Items[(C)->Count-1])
+void* CollLast (Collection* C);
+/* Return the last item in a collection */
#endif
#if defined(HAVE_INLINE)
return C->Items[C->Count-1];
}
#else
-# define CollConstLast(C) \
- (PRECONDITION ((C)->Count > 0), \
- (C)->Items[(C)->Count-1])
+const void* CollConstLast (const Collection* C);
+/* Return the last item in a collection */
#endif
#if defined(HAVE_INLINE)
return C->Items[--C->Count];
}
#else
-# define CollPop(C) \
- (PRECONDITION ((C)->Count > 0), \
- (C)->Items[--(C)->Count])
+void* CollPop (Collection* C);
+/* Remove the last segment from the stack and return it. Calls FAIL if the
+ * collection is empty.
+ */
#endif
int CollIndex (Collection* C, const void* Item);
C->Count = 0;
}
#else
-# define CollDeleteAll(C) ((C)->Count = 0)
+# define CollDeleteAll(C) ((C)->Count = 0)
#endif
#if defined(HAVE_INLINE)
INLINE void CollReplace (Collection* C, void* Item, unsigned Index)
/* Replace the item at the given position. The old item will not be freed,
- * just the pointer will et replaced.
+ * just the pointer will get replaced.
*/
{
/* Check the index */
C->Items[Index] = Item;
}
#else
-# define CollReplace(C, Item, Index) \
- (PRECONDITION ((Index) < (C)->Count), \
- (C)->Items[(Index)] = (Item))
+void CollReplace (Collection* C, void* Item, unsigned Index);
+/* Replace the item at the given position. The old item will not be freed,
+ * just the pointer will get replaced.
+ */
#endif
+void CollReplaceExpand (Collection* C, void* Item, unsigned Index);
+/* If Index is a valid index for the collection, replace the item at this
+ * position by the one passed. If the collection is too small, expand it,
+ * filling unused pointers with NULL, then add the new item at the given
+ * position.
+ */
+
void CollMove (Collection* C, unsigned OldIndex, unsigned NewIndex);
/* Move an item from one position in the collection to another. OldIndex
* is the current position of the item, NewIndex is the new index after
* and up are moved one position upwards.
*/
+void CollMoveMultiple (Collection* C, unsigned Start, unsigned Count, unsigned Target);
+/* Move a range of items from one position to another. Start is the index
+ * of the first item to move, Count is the number of items and Target is
+ * the index of the target item. The item with the index Start will later
+ * have the index Target. All items with indices Target and above are moved
+ * to higher indices.
+ */
+
+void CollTransfer (Collection* Dest, const Collection* Source);
+/* Transfer all items from Source to Dest. Anything already in Dest is left
+ * untouched. The items in Source are not changed and are therefore in both
+ * Collections on return.
+ */
+
void CollSort (Collection* C,
- int (*Compare) (void*, const void*, const void*),
- void* Data);
+ int (*Compare) (void*, const void*, const void*),
+ void* Data);
/* Sort the collection using the given compare function. The data pointer is
* passed as *first* element to the compare function, it's not used by the
* sort function itself. The other two pointer passed to the Compare function
-/* End of exprlist.h */
+/* End of coll.h */
#endif
-
-
-
-
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