/usr/include/cvodes/cvodes_band.h is in libsundials-serial-dev 2.5.0-3+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* -----------------------------------------------------------------
* $Revision: 1.8 $
* $Date: 2010/12/01 22:13:10 $
* -----------------------------------------------------------------
* Programmer(s): Radu Serban @ LLNL
* -----------------------------------------------------------------
* Copyright (c) 2005, The Regents of the University of California.
* Produced at the Lawrence Livermore National Laboratory.
* All rights reserved.
* For details, see the LICENSE file.
* -----------------------------------------------------------------
* This is the header file for the band linear solver CSVBAND.
* -----------------------------------------------------------------
*/
#ifndef _CVSBAND_H
#define _CVSBAND_H
#ifdef __cplusplus /* wrapper to enable C++ usage */
extern "C" {
#endif
#include <cvodes/cvodes_direct.h>
#include <sundials/sundials_band.h>
/*
* -----------------------------------------------------------------
* Function : CVBand
* -----------------------------------------------------------------
* A call to the CVBand function links the main CVODE integrator
* with the CVSBAND linear solver.
*
* cvode_mem is the pointer to the integrator memory returned by
* CVodeCreate.
*
* N is the size of the ODE system.
*
* mupper is the upper bandwidth of the band Jacobian
* approximation.
*
* mlower is the lower bandwidth of the band Jacobian
* approximation.
*
* The return value of CVBand is one of:
* CVDLS_SUCCESS if successful
* CVDLS_MEM_NULL if the cvode memory was NULL
* CVDLS_MEM_FAIL if there was a memory allocation failure
* CVDLS_ILL_INPUT if a required vector operation is missing or
* if a bandwidth has an illegal value.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int CVBand(void *cvode_mem, long int N, long int mupper, long int mlower);
/*
* -----------------------------------------------------------------
* Function: CVBandB
* -----------------------------------------------------------------
* CVBandB links the main CVODE integrator with the CVSBAND
* linear solver for the backward integration.
* -----------------------------------------------------------------
*/
SUNDIALS_EXPORT int CVBandB(void *cvode_mem, int which,
long int nB, long int mupperB, long int mlowerB);
#ifdef __cplusplus
}
#endif
#endif
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