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+
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * carray - Implements simple dynamic pointer arrays
+ *
+ * Copyright (c) 1999-2000, Gaël Roualland <gael.roualland@iname.com>
+ * interface changes - 2002 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef CARRAY_H
+#define CARRAY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct carray_s {
+  void ** array;
+  unsigned int len;
+  unsigned int max;
+};
+
+typedef struct carray_s carray;
+
+/* Creates a new array of pointers, with initsize preallocated cells */
+carray *   carray_new(unsigned int initsize);
+
+/* Adds the pointer to data in the array.
+   Returns the index of the pointer in the array or -1 on error */
+int       carray_add(carray * array, void * data, unsigned int * index);
+
+int carray_set_size(carray * array, unsigned int new_size);
+
+/* Removes the cell at this index position. Returns TRUE on success.
+   Order of elements in the array IS changed. */
+int       carray_delete(carray * array, unsigned int indx);
+
+/* Removes the cell at this index position. Returns TRUE on success.
+   Order of elements in the array IS not changed. */
+int       carray_delete_slow(carray * array, unsigned int indx);
+
+/* remove without decreasing the size of the array */
+int carray_delete_fast(carray * array, unsigned int indx);
+
+/* Some of the following routines can be implemented as macros to
+   be faster. If you don't want it, define NO_MACROS */
+#ifdef NO_MACROS
+
+/* Returns the array itself */
+void **   carray_data(carray *);
+
+/* Returns the number of elements in the array */
+int       carray_count(carray *);
+
+/* Returns the contents of one cell */
+void *    carray_get(carray * array, unsigned int indx);
+
+/* Sets the contents of one cell */
+void      carray_set(carray * array, unsigned int indx, void * value);
+
+#else
+
+#if 0
+#define   carray_data(a)         (a->array)
+#define   carray_count(a)        (a->len)
+#define   carray_get(a, indx)    (a->array[indx])
+#define   carray_set(a, indx, v) do { a->array[indx]=v; } while(0)
+#endif
+
+static inline void ** carray_data(carray * array) {
+  return array->array;
+}
+
+static inline unsigned int carray_count(carray * array) {
+  return array->len;
+}
+
+static inline void * carray_get(carray * array, unsigned int indx) {
+  return array->array[indx];
+}
+
+static inline void carray_set(carray * array,
+    unsigned int indx, void * value) {
+  array->array[indx] = value;
+}
+#endif
+
+void carray_free(carray * array);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif