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/* Callbacks for pointers to `void'.
* Copyright (C) 1996 Free Software Foundation, Inc.
*
* Author: Albin L. Jones <Albin.L.Jones@Dartmouth.EDU>
* Created: Sat Feb 10 22:04:38 EST 1996
* Updated: Mon Mar 11 02:03:13 EST 1996
* Serial: 96.03.11.04
*
* This file is part of the GNUstep Base Library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/**** Included Headers *******************************************************/
#include <stdlib.h>
#include <Foundation/NSString.h>
#include <gnustep/base/o_cbs.h>
/**** Type, Constant, and Macro Definitions **********************************/
/* FIXME: Is this right?!? */
#define _OBJECTS_NOT_A_VOID_P_MARKER (const void *)(-1)
const void *o_not_a_void_p_marker = _OBJECTS_NOT_A_VOID_P_MARKER;
o_callbacks_t o_callbacks_for_non_owned_void_p =
{
(o_hash_func_t) o_non_owned_void_p_hash,
(o_compare_func_t) o_non_owned_void_p_compare,
(o_is_equal_func_t) o_non_owned_void_p_is_equal,
(o_retain_func_t) o_non_owned_void_p_retain,
(o_release_func_t) o_non_owned_void_p_release,
_OBJECTS_NOT_A_VOID_P_MARKER
};
o_callbacks_t o_callbacks_for_owned_void_p =
{
(o_hash_func_t) o_owned_void_p_hash,
(o_compare_func_t) o_owned_void_p_compare,
(o_is_equal_func_t) o_owned_void_p_is_equal,
(o_retain_func_t) o_owned_void_p_retain,
(o_release_func_t) o_owned_void_p_release,
_OBJECTS_NOT_A_VOID_P_MARKER
};
/**** Function Implementations ***********************************************/
size_t
o_non_owned_void_p_hash(register const void *cptr)
{
return ((size_t) cptr)/4;
}
int
o_non_owned_void_p_compare(register const void *cptr,
register const void *dptr)
{
if (cptr == dptr)
return 0;
else if (cptr < dptr)
return -1;
else /* if (cptr > dptr) */
return 1;
}
int
o_non_owned_void_p_is_equal(register const void *cptr,
register const void *dptr)
{
return (cptr == dptr);
}
const void *
o_non_owned_void_p_retain(const void *cptr)
{
return cptr;
}
void
o_non_owned_void_p_release(void *cptr)
{
/* We don't own CPTR, so we don't release it. */
return;
}
NSString *
o_non_owned_void_p_describe(const void *cptr)
{
/* FIXME: Code this. */
return nil;
}
size_t
o_owned_void_p_hash(register const void *cptr)
{
/* We divide by 4 because many machines align
* memory on word boundaries. */
return ((size_t) cptr)/4;
}
int
o_owned_void_p_compare(register const void *cptr,
register const void *dptr)
{
if (cptr == dptr)
return 0;
else if (cptr < dptr)
return -1;
else /* if (cptr > dptr) */
return 1;
}
int
o_owned_void_p_is_equal(register const void *cptr,
register const void *dptr)
{
return (cptr == dptr);
}
const void *
o_owned_void_p_retain(const void *cptr)
{
return cptr;
}
void
o_owned_void_p_release(void *cptr)
{
free((void *)cptr);
return;
}
NSString *
o_owned_void_p_describe(const void *obj)
{
/* FIXME: Code this. */
return nil;
}
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