/* * $Id: arraylist.c,v 1.4 2006/01/26 02:16:28 mclark Exp $ * * Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd. * Michael Clark <michael@metaparadigm.com> * * This library is free software; you can redistribute it and/or modify * it under the terms of the MIT license. See COPYING for details. * */ #include "config.h" #if STDC_HEADERS# include <stdlib.h># include <string.h>#endif /* STDC_HEADERS */ #if HAVE_STRINGS_H# include <strings.h>#endif /* HAVE_STRINGS_H */ #include "bits.h"#include "arraylist.h" struct array_list*array_list_new(array_list_free_fn *free_fn){  struct array_list *this;   if(!(this = calloc(1, sizeof(struct array_list)))) return NULL;  this->size = ARRAY_LIST_DEFAULT_SIZE;  this->length = 0;  this->free_fn = free_fn;  if(!(this->array = calloc(sizeof(void*), this->size))) {    free(this);    return NULL;  }  return this;} extern voidarray_list_free(struct array_list *this){  int i;  for(i = 0; i < this->length; i++)    if(this->array[i]) this->free_fn(this->array[i]);  free(this->array);  free(this);} void*array_list_get_idx(struct array_list *this, int i){  if(i >= this->length) return NULL;  return this->array[i];} static int array_list_expand_internal(struct array_list *this, int max){  void *t;  int new_size;   if(max < this->size) return 0;  new_size = max(this->size << 1, max);  if(!(t = realloc(this->array, new_size*sizeof(void*)))) return -1;  this->array = t;  (void)memset(this->array + this->size, 0, (new_size-this->size)*sizeof(void*));  this->size = new_size;  return 0;} intarray_list_put_idx(struct array_list *this, int idx, void *data){  if(array_list_expand_internal(this, idx)) return -1;  if(this->array[idx]) this->free_fn(this->array[idx]);  this->array[idx] = data;  if(this->length <= idx) this->length = idx + 1;  return 0;} intarray_list_add(struct array_list *this, void *data){  return array_list_put_idx(this, this->length, data);} intarray_list_length(struct array_list *this){  return this->length;}