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98 lines
1.8 KiB
98 lines
1.8 KiB
//========================================================================
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//
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// GList.cpp
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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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#include <aconf.h>
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#ifdef USE_GCC_PRAGMAS
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#pragma implementation
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "gmem.h"
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#include "GList.h"
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//------------------------------------------------------------------------
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// GList
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//------------------------------------------------------------------------
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GList::GList() {
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size = 8;
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data = (void **)gmallocn(size, sizeof(void*));
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length = 0;
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inc = 0;
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}
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GList::GList(int sizeA) {
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size = sizeA;
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data = (void **)gmallocn(size, sizeof(void*));
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length = 0;
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inc = 0;
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}
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GList::~GList() {
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gfree(data);
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}
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void GList::append(void *p) {
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if (length >= size) {
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expand();
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}
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data[length++] = p;
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}
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void GList::append(GList *list) {
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int i;
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while (length + list->length > size) {
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expand();
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}
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for (i = 0; i < list->length; ++i) {
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data[length++] = list->data[i];
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}
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}
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void GList::insert(int i, void *p) {
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if (length >= size) {
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expand();
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}
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if (i < length) {
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memmove(data+i+1, data+i, (length - i) * sizeof(void *));
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}
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data[i] = p;
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++length;
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}
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void *GList::del(int i) {
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void *p;
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p = data[i];
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if (i < length - 1) {
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memmove(data+i, data+i+1, (length - i - 1) * sizeof(void *));
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}
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--length;
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if (size - length >= ((inc > 0) ? inc : size/2)) {
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shrink();
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}
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return p;
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}
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void GList::sort(int (*cmp)(const void *obj1, const void *obj2)) {
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qsort(data, length, sizeof(void *), cmp);
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}
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void GList::expand() {
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size += (inc > 0) ? inc : size;
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data = (void **)greallocn(data, size, sizeof(void*));
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}
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void GList::shrink() {
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size -= (inc > 0) ? inc : size/2;
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data = (void **)greallocn(data, size, sizeof(void*));
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}
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