/usr/include/trilinos/ml_solver.h is in libtrilinos-ml-dev 12.12.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* See the file COPYRIGHT for a complete copyright notice, contact */
/* person and disclaimer. */
/* ******************************************************************** */
/* ******************************************************************** */
/* Declaration of the ML structure */
/* ******************************************************************** */
/* Author : Charles Tong (LLNL) and Raymond Tuminaro (SNL) */
/* Date : February, 1999 */
/* ******************************************************************** */
#ifndef _MLSOLVER_
#define _MLSOLVER_
/* #include <stdlib.h> */
#include "ml_common.h"
#include "ml_defs.h"
#ifdef DSUPERLU
#include "superlu_ddefs.h"
#endif
typedef struct ML_Lugrid_Struct
{
#ifdef DSUPERLU
gridinfo_t grid;
#endif
int count;
} ML_Lugrid;
typedef struct ML_Solver_Struct
{
int ML_id; /* ID for the Solver structure */
int reuse_flag; /* flag for internal use */
void (*func)(void); /* function to perform the solve */
void *Mat1; /* primary matrix for the solver */
void *Mat2; /* L matrix (for direct solver) */
void *Mat3; /* U matrix (for direct solver) */
int int_data; /* integer data for the solver */
int int_data2; /* integer data for the solver */
double dble_data; /* double data for the solver */
int *int_params1; /* integer array for the solver */
int *int_params2; /* integer array for the solver */
double *dble_params1; /* double array for the solver */
double *dble_params2; /* double array for the solver */
void *void_params1; /* other data for the solver */
void *void_params2; /* other data for the solver */
void *LUspl; /* for direct solver */
void *PERMspl; /* for direct solver */
int ML_subgroup;
ML_Lugrid *gridtiles;
} ML_Solver;
/* Changed void ML_subcomm to int ML_subgroup */
#ifdef __cplusplus
extern "C" {
#endif
int ML_Solver_Create( ML_Solver **sol );
int ML_Solver_Destroy( ML_Solver **sol );
int ML_Solver_Check( ML_Solver *sol );
#ifdef __cplusplus
}
#endif
#endif
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