/usr/include/igraph/igraph_psumtree.h is in libigraph0-dev 0.7.1-2.1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2009-2012 Gabor Csardi <csardi.gabor@gmail.com>
334 Harvard street, Cambridge, MA 02139 USA
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 2 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#ifndef IGRAPH_PSUMTREE_H
#define IGRAPH_PSUMTREE_H
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS /* empty */
# define __END_DECLS /* empty */
#endif
#include "igraph_vector.h"
__BEGIN_DECLS
typedef struct {
igraph_vector_t v;
long int size;
long int offset;
} igraph_psumtree_t;
int igraph_psumtree_init(igraph_psumtree_t *t, long int size);
void igraph_psumtree_destroy(igraph_psumtree_t *t);
igraph_real_t igraph_psumtree_get(const igraph_psumtree_t *t, long int idx);
long int igraph_psumtree_size(const igraph_psumtree_t *t);
int igraph_psumtree_search(const igraph_psumtree_t *t, long int *idx,
igraph_real_t elem);
int igraph_psumtree_update(igraph_psumtree_t *t, long int idx,
igraph_real_t new_value);
igraph_real_t igraph_psumtree_sum(const igraph_psumtree_t *t);
__END_DECLS
#endif
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