/usr/lib/slepcdir/3.6.1/x86_64-linux-gnu-real-debug/include/slepcfn.h is in libslepc3.6.1-dbg 3.6.1.dfsg1-2build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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SLEPc - Scalable Library for Eigenvalue Problem Computations
Copyright (c) 2002-2015, Universitat Politecnica de Valencia, Spain
This file is part of SLEPc.
SLEPc is free software: you can redistribute it and/or modify it under the
terms of version 3 of the GNU Lesser General Public License as published by
the Free Software Foundation.
SLEPc 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 Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
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*/
#if !defined(__SLEPCFN_H)
#define __SLEPCFN_H
#include <slepcsys.h>
PETSC_EXTERN PetscErrorCode FNInitializePackage(void);
/*S
FN - Abstraction of a mathematical function.
Level: beginner
.seealso: FNCreate()
S*/
typedef struct _p_FN* FN;
/*J
FNType - String with the name of the mathematical function.
Level: beginner
.seealso: FNSetType(), FN
J*/
typedef const char* FNType;
#define FNCOMBINE "combine"
#define FNRATIONAL "rational"
#define FNEXP "exp"
#define FNLOG "log"
#define FNPHI "phi"
#define FNSQRT "sqrt"
/* Logging support */
PETSC_EXTERN PetscClassId FN_CLASSID;
/*E
FNCombineType - Determines how two functions are combined
Level: advanced
.seealso: FNCombineSetChildren()
E*/
typedef enum { FN_COMBINE_ADD,
FN_COMBINE_MULTIPLY,
FN_COMBINE_DIVIDE,
FN_COMBINE_COMPOSE } FNCombineType;
PETSC_EXTERN PetscErrorCode FNCreate(MPI_Comm,FN*);
PETSC_EXTERN PetscErrorCode FNSetType(FN,FNType);
PETSC_EXTERN PetscErrorCode FNGetType(FN,FNType*);
PETSC_EXTERN PetscErrorCode FNSetOptionsPrefix(FN,const char *);
PETSC_EXTERN PetscErrorCode FNAppendOptionsPrefix(FN,const char *);
PETSC_EXTERN PetscErrorCode FNGetOptionsPrefix(FN,const char *[]);
PETSC_EXTERN PetscErrorCode FNSetFromOptions(FN);
PETSC_EXTERN PetscErrorCode FNView(FN,PetscViewer);
PETSC_EXTERN PetscErrorCode FNDestroy(FN*);
PETSC_EXTERN PetscErrorCode FNDuplicate(FN,MPI_Comm,FN*);
PETSC_EXTERN PetscErrorCode FNSetScale(FN,PetscScalar,PetscScalar);
PETSC_EXTERN PetscErrorCode FNGetScale(FN,PetscScalar*,PetscScalar*);
PETSC_EXTERN PetscErrorCode FNEvaluateFunction(FN,PetscScalar,PetscScalar*);
PETSC_EXTERN PetscErrorCode FNEvaluateDerivative(FN,PetscScalar,PetscScalar*);
PETSC_EXTERN PetscErrorCode FNEvaluateFunctionMat(FN,Mat,Mat);
PETSC_EXTERN PetscFunctionList FNList;
PETSC_EXTERN PetscErrorCode FNRegister(const char[],PetscErrorCode(*)(FN));
/* --------- options specific to particular functions -------- */
PETSC_EXTERN PetscErrorCode FNRationalSetNumerator(FN,PetscInt,PetscScalar*);
PETSC_EXTERN PetscErrorCode FNRationalGetNumerator(FN,PetscInt*,PetscScalar**);
PETSC_EXTERN PetscErrorCode FNRationalSetDenominator(FN,PetscInt,PetscScalar*);
PETSC_EXTERN PetscErrorCode FNRationalGetDenominator(FN,PetscInt*,PetscScalar**);
PETSC_EXTERN PetscErrorCode FNCombineSetChildren(FN,FNCombineType,FN,FN);
PETSC_EXTERN PetscErrorCode FNCombineGetChildren(FN,FNCombineType*,FN*,FN*);
PETSC_EXTERN PetscErrorCode FNPhiSetIndex(FN,PetscInt);
PETSC_EXTERN PetscErrorCode FNPhiGetIndex(FN,PetscInt*);
#endif
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