/usr/include/einspline/multi_nubspline_structs.h is in libeinspline-dev 0.9.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// einspline: a library for creating and evaluating B-splines //
// Copyright (C) 2007 Kenneth P. Esler, Jr. //
// //
// 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 MULTI_NUBSPLINE_STRUCTS_STD_H
#define MULTI_NUBSPLINE_STRUCTS_STD_H
#include <inttypes.h>
#include "bspline_base.h"
#include "nubasis.h"
///////////////////////////
// Single precision real //
///////////////////////////
typedef struct
{
spline_code spcode;
type_code tcode;
float* restrict coefs;
intptr_t x_stride;
BCtype_s xBC;
int num_splines;
NUgrid *restrict x_grid;
NUBasis *restrict x_basis;
} multi_NUBspline_1d_s;
typedef struct
{
spline_code spcode;
type_code tcode;
float* restrict coefs;
intptr_t x_stride, y_stride;
BCtype_s xBC, yBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid;
NUBasis *restrict x_basis, *restrict y_basis;
} multi_NUBspline_2d_s;
typedef struct
{
spline_code spcode;
type_code tcode;
float* restrict coefs;
intptr_t x_stride, y_stride, z_stride;
BCtype_s xBC, yBC, zBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid, *restrict z_grid;
NUBasis *restrict x_basis, *restrict y_basis, *restrict z_basis;
} multi_NUBspline_3d_s;
///////////////////////////
// Double precision real //
///////////////////////////
typedef struct
{
spline_code spcode;
type_code tcode;
double* restrict coefs;
intptr_t x_stride;
BCtype_d xBC;
int num_splines;
NUgrid *restrict x_grid;
NUBasis *restrict x_basis;
} multi_NUBspline_1d_d;
typedef struct
{
spline_code spcode;
type_code tcode;
double* restrict coefs;
intptr_t x_stride, y_stride;
BCtype_d xBC, yBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid;
NUBasis *restrict x_basis, *restrict y_basis;
} multi_NUBspline_2d_d;
typedef struct
{
spline_code spcode;
type_code tcode;
double* restrict coefs;
intptr_t x_stride, y_stride, z_stride;
BCtype_d xBC, yBC, zBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid, *restrict z_grid;
NUBasis *restrict x_basis, *restrict y_basis, *restrict z_basis;
} multi_NUBspline_3d_d;
//////////////////////////////
// Single precision complex //
//////////////////////////////
typedef struct
{
spline_code spcode;
type_code tcode;
complex_float* restrict coefs;
intptr_t x_stride;
BCtype_c xBC;
int num_splines;
NUgrid *restrict x_grid;
NUBasis *restrict x_basis;
} multi_NUBspline_1d_c;
typedef struct
{
spline_code spcode;
type_code tcode;
complex_float* restrict coefs;
intptr_t x_stride, y_stride;
BCtype_c xBC, yBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid;
NUBasis *restrict x_basis, *restrict y_basis;
} multi_NUBspline_2d_c;
typedef struct
{
spline_code spcode;
type_code tcode;
complex_float* restrict coefs;
intptr_t x_stride, y_stride, z_stride;
BCtype_c xBC, yBC, zBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid, *restrict z_grid;
NUBasis *restrict x_basis, *restrict y_basis, *restrict z_basis;
} multi_NUBspline_3d_c;
//////////////////////////////
// Double precision complex //
//////////////////////////////
typedef struct
{
spline_code spcode;
type_code tcode;
complex_double* restrict coefs;
intptr_t x_stride;
BCtype_z xBC;
int num_splines;
NUgrid *restrict x_grid;
NUBasis *restrict x_basis;
} multi_NUBspline_1d_z;
typedef struct
{
spline_code spcode;
type_code tcode;
complex_double* restrict coefs;
intptr_t x_stride, y_stride;
BCtype_z xBC, yBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid;
NUBasis *restrict x_basis, *restrict y_basis;
} multi_NUBspline_2d_z;
typedef struct
{
spline_code spcode;
type_code tcode;
complex_double* restrict coefs;
intptr_t x_stride, y_stride, z_stride;
BCtype_z xBC, yBC, zBC;
int num_splines;
NUgrid *restrict x_grid, *restrict y_grid, *restrict z_grid;
NUBasis *restrict x_basis, *restrict y_basis, *restrict z_basis;
} multi_NUBspline_3d_z;
#endif
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