/usr/include/qsopt_ex/sortrus_common.h is in libqsopt-ex-dev 2.5.10.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* */
/* This file is part of QSopt_ex. */
/* */
/* (c) Copyright 2006 by David Applegate, William Cook, Sanjeeb Dash, */
/* and Daniel Espinoza */
/* */
/* Sanjeeb Dash ownership of copyright in QSopt_ex is derived from his */
/* copyright in QSopt. */
/* */
/* This code may be used under the terms of the GNU General Public License */
/* (Version 2.1 or later) as published by the Free Software Foundation. */
/* */
/* Alternatively, use is granted for research purposes only. */
/* */
/* It is your choice of which of these two licenses you are operating */
/* under. */
/* */
/* We make no guarantees about the correctness or usefulness of this code. */
/* */
/****************************************************************************/
#ifndef __SORTRUS_H__
#define __SORTRUS_H__
/****************************************************************************/
/* */
/* sortrus.c */
/* */
/****************************************************************************/
#include "urandom.h"
void ILLutil_int_array_quicksort (
int *len,
int n),
ILLutil_int_perm_quicksort (
int *perm,
int *len,
int n),
ILLutil_double_perm_quicksort (
int *perm,
double *len,
int n),
ILLutil_str_perm_quicksort (
int *perm,
char **len,
int n),
ILLutil_rselect (
int *arr,
int l,
int r,
int m,
double *coord,
ILLrandstate * rstate);
char *ILLutil_linked_radixsort (
char *data,
char *datanext,
char *dataval,
int valsize);
#endif
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