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/* Sequential list data type backed by another list.
Copyright (C) 2006, 2009-2022 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2006.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _GL_SUBLIST_H
#define _GL_SUBLIST_H
#include "gl_list.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Creates a sublist of a given list.
This is the list of elements with indices i, start_index <= i < end_index.
The sublist is backed by the given list, which means:
- Modifications to the sublist affect the whole list.
- Modifications to the whole list are immediately visible in the sublist.
- The sublist is only valid as long as the whole list is valid.
- The sublist must not be passed to the gl_list_sortedlist_add() function.
*/
#if 0 /* declared in gl_xsublist.h */
extern gl_list_t gl_sublist_create (gl_list_t whole_list,
size_t start_index, size_t end_index)
/*_GL_ATTRIBUTE_DEALLOC (gl_list_free, 1)*/
_GL_ATTRIBUTE_RETURNS_NONNULL;
#endif
/* Likewise. Returns NULL upon out-of-memory. */
extern gl_list_t gl_sublist_nx_create (gl_list_t whole_list,
size_t start_index, size_t end_index)
/*_GL_ATTRIBUTE_DEALLOC (gl_list_free, 1)*/;
#ifdef __cplusplus
}
#endif
#endif /* _GL_SUBLIST_H */
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