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/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Details at https://graphviz.org
*************************************************************************/
#pragma once
#include <stdbool.h>
#include <util/api.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <neatogen/sparsegraph.h>
PRIVATE void scadd(double *, int, double, double *);
PRIVATE double norm(double *, int);
PRIVATE void orthog1(int n, double *vec);
PRIVATE void init_vec_orth1(int n, double *vec);
PRIVATE void right_mult_with_vector(vtx_data *, int, double *,
double *);
PRIVATE void right_mult_with_vector_f(float **, int, double *,
double *);
PRIVATE void vectors_subtraction(int, double *, double *, double *);
PRIVATE void vectors_addition(int, double *, double *, double *);
PRIVATE void vectors_scalar_mult(int, const double *, double, double *);
PRIVATE void copy_vector(int n, const double *restrict source,
double *restrict dest);
PRIVATE double vectors_inner_product(int n, const double *vector1,
const double *vector2);
PRIVATE double max_abs(int n, double *vector);
/* sparse matrix extensions: */
PRIVATE void right_mult_with_vector_transpose
(double **, int, int, double *, double *);
PRIVATE void right_mult_with_vector_d(double *const *, int, int, double *,
double *);
PRIVATE void mult_dense_mat(double **, float **, int, int, int,
float ***C);
PRIVATE void mult_dense_mat_d(double **, float **, int, int, int,
double ***CC);
PRIVATE void mult_sparse_dense_mat_transpose(vtx_data *, double **, int,
int, float ***);
PRIVATE bool power_iteration(double *const *, int, int, double **);
/*****************************
** Single precision (float) **
** version **
*****************************/
PRIVATE void orthog1f(int n, float *vec);
PRIVATE void right_mult_with_vector_ff(float *, int, float *, float *);
PRIVATE void vectors_subtractionf(int, float *, float *, float *);
PRIVATE void vectors_additionf(int n, float *vector1, float *vector2,
float *result);
PRIVATE void vectors_mult_additionf(int n, float *vector1, float alpha,
float *vector2);
PRIVATE void copy_vectorf(int n, float *source, float *dest);
PRIVATE double vectors_inner_productf(int n, float *vector1,
float *vector2);
PRIVATE void set_vector_val(int n, double val, double *result);
PRIVATE void set_vector_valf(int n, float val, float * result);
PRIVATE double max_absf(int n, float *vector);
PRIVATE void square_vec(int n, float *vec);
PRIVATE void invert_vec(int n, float *vec);
PRIVATE void sqrt_vecf(int n, float *source, float *target);
PRIVATE void invert_sqrt_vec(int n, float *vec);
#ifdef __cplusplus
}
#endif
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