/usr/include/libetpan/carray.h is in libetpan-dev 1.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* libEtPan! -- a mail stuff library
*
* carray - Implements simple dynamic pointer arrays
*
* Copyright (c) 1999-2005, Gaël Roualland <gael.roualland@iname.com>
* interface changes - 2005 - 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 AUTHORS 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 AUTHORS 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: carray.h,v 1.17 2008/02/20 22:15:50 hoa Exp $
*/
#ifndef CARRAY_H
#define CARRAY_H
#ifndef LIBETPAN_CONFIG_H
# include <libetpan/libetpan-config.h>
#endif
#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 */
LIBETPAN_EXPORT
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 */
LIBETPAN_EXPORT
int carray_add(carray * array, void * data, unsigned int * indx);
LIBETPAN_EXPORT
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. */
LIBETPAN_EXPORT
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. */
LIBETPAN_EXPORT
int carray_delete_slow(carray * array, unsigned int indx);
/* remove without decreasing the size of the array */
LIBETPAN_EXPORT
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 */
LIBETPAN_EXPORT
void ** carray_data(carray *);
/* Returns the number of elements in the array */
LIBETPAN_EXPORT
unsigned int carray_count(carray *);
/* Returns the contents of one cell */
LIBETPAN_EXPORT
void * carray_get(carray * array, unsigned int indx);
/* Sets the contents of one cell */
LIBETPAN_EXPORT
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
LIBETPAN_EXPORT
void carray_free(carray * array);
#ifdef __cplusplus
}
#endif
#endif
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