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96 lines
2.5 KiB
96 lines
2.5 KiB
//========================================================================
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//
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// GList.h
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//
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// Copyright 2001-2003 Glyph & Cog, LLC
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//
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//========================================================================
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#ifndef GLIST_H
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#define GLIST_H
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#include <aconf.h>
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#ifdef USE_GCC_PRAGMAS
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#pragma interface
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#endif
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#include "gtypes.h"
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//------------------------------------------------------------------------
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// GList
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//------------------------------------------------------------------------
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class GList {
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public:
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// Create an empty list.
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GList();
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// Create an empty list with space for <size1> elements.
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GList(int sizeA);
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// Destructor - does not free pointed-to objects.
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~GList();
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//----- general
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// Get the number of elements.
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int getLength() { return length; }
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//----- ordered list support
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// Return the <i>th element.
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// Assumes 0 <= i < length.
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void *get(int i) { return data[i]; }
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// Append an element to the end of the list.
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void append(void *p);
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// Append another list to the end of this one.
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void append(GList *list);
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// Insert an element at index <i>.
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// Assumes 0 <= i <= length.
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void insert(int i, void *p);
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// Deletes and returns the element at index <i>.
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// Assumes 0 <= i < length.
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void *del(int i);
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// Sort the list accoring to the given comparison function.
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// NB: this sorts an array of pointers, so the pointer args need to
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// be double-dereferenced.
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void sort(int (*cmp)(const void *ptr1, const void *ptr2));
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//----- control
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// Set allocation increment to <inc>. If inc > 0, that many
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// elements will be allocated every time the list is expanded.
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// If inc <= 0, the list will be doubled in size.
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void setAllocIncr(int incA) { inc = incA; }
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private:
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void expand();
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void shrink();
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void **data; // the list elements
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int size; // size of data array
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int length; // number of elements on list
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int inc; // allocation increment
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};
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#define deleteGList(list, T) \
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do { \
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GList *_list = (list); \
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{ \
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int _i; \
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for (_i = 0; _i < _list->getLength(); ++_i) { \
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delete (T*)_list->get(_i); \
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} \
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delete _list; \
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} \
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} while (0)
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#endif
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