133 lines
5.1 KiB
C
133 lines
5.1 KiB
C
/*****************************************************************************/
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/* */
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/* coll.h */
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/* */
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/* Collection (dynamic array) */
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/* */
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/* */
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/* */
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/* (C) 2000 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef COLL_H
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#define COLL_H
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#include "attrib.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* An array of pointers that grows if needed */
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typedef struct Collection Collection;
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struct Collection {
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unsigned Count; /* Number of items in the list */
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unsigned Size; /* Size of allocated array */
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void** Items; /* Array with dynamic size */
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};
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/* Initializer for static collections */
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#define STATIC_COLLECTION_INITIALIZER { 0, 0, 0 }
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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Collection* InitCollection (Collection* C);
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/* Initialize a collection and return it. */
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void DoneCollection (Collection* C);
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/* Free the data for a collection. This will not free the data contained in
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* the collection.
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*/
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Collection* NewCollection (void);
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/* Create and return a new collection */
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void FreeCollection (Collection* C);
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/* Free a collection */
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unsigned CollCount (const Collection* C);
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/* Return the number of items in the collection */
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void CollInsert (Collection* C, void* Item, unsigned Index);
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/* Insert the data at the given position in the collection */
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void CollAppend (Collection* C, void* Item);
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/* Append an item to the end of the collection */
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void* CollAt (Collection* C, unsigned Index) attribute ((const));
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/* Return the item at the given index */
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const void* CollConstAt (const Collection* C, unsigned Index) attribute ((const));
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/* Return the item at the given index */
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void* CollLast (Collection* C);
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/* Return the last item in a collection */
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const void* CollConstLast (const Collection* C);
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/* Return the last item in a collection */
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void CollDelete (Collection* C, unsigned Index);
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/* Remove the item with the given index from the collection. This will not
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* free the item itself, just the pointer. All items with higher indices
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* will get moved to a lower position.
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*/
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void CollReplace (Collection* C, void* Item, unsigned Index);
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/* Replace the item at the given position. The old item will not be freed,
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* just the pointer will et replaced.
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*/
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void CollSort (Collection* C,
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int (*Compare) (void*, const void*, const void*),
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void* Data);
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/* Sort the collection using the given compare function. The data pointer is
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* passed as *first* element to the compare function, it's not used by the
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* sort function itself. The other two pointer passed to the Compare function
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* are pointers to objects.
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*/
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/* End of exprlist.h */
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#endif
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