fix CSparse copyright and license info (LGPL, not BSD)

MRPT · Oct 17, 2022 · 3f55a1b · 3f55a1b
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diff --git a/libs/math/include/mrpt/3rdparty/CSparse/cs.h b/libs/math/include/mrpt/3rdparty/CSparse/cs.h
@@ -1,11 +1,6 @@
-/* +------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)            |
-   |                          https://www.mrpt.org/                         |
-   |                                                                        |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file     |
-   | See: https://www.mrpt.org/Authors - All rights reserved.               |
-   | Released under BSD License. See: https://www.mrpt.org/License          |
-   +------------------------------------------------------------------------+ */
+// CSparse/cs.h: include file for CSparse
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #pragma once
 #include <stdlib.h>
 #include <limits.h>

diff --git a/libs/math/src/CSparse/cs_add.c b/libs/math/src/CSparse/cs_add.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_add: sparse matrix addition
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* C = alpha*A + beta*B */
 cs *cs_add (const cs *A, const cs *B, double alpha, double beta)

diff --git a/libs/math/src/CSparse/cs_amd.c b/libs/math/src/CSparse/cs_amd.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_amd: approximate minimum degree
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* clear w */
 static int cs_wclear (int mark, int lemax, int *w, int n)

diff --git a/libs/math/src/CSparse/cs_chol.c b/libs/math/src/CSparse/cs_chol.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_chol: sparse Cholesky factorization
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* L = chol (A, [pinv parent cp]), pinv is optional */
 csn *cs_chol (const cs *A, const css *S)

diff --git a/libs/math/src/CSparse/cs_cholsol.c b/libs/math/src/CSparse/cs_cholsol.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_cholsol: x=A\b using a sparse Cholesky factorization
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* x=A\b where A is symmetric positive definite; b overwritten with solution */
 int cs_cholsol (int order, const cs *A, double *b)

diff --git a/libs/math/src/CSparse/cs_compress.c b/libs/math/src/CSparse/cs_compress.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_compress: convert triplet to sparse compressed-column
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* C = compressed-column form of a triplet matrix T */
 cs *cs_compress (const cs *T)

diff --git a/libs/math/src/CSparse/cs_counts.c b/libs/math/src/CSparse/cs_counts.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_counts: column counts for sparse Cholesky
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* column counts of LL'=A or LL'=A'A, given parent & post ordering */
 #define HEAD(k,j) (ata ? head [k] : j)

diff --git a/libs/math/src/CSparse/cs_cumsum.c b/libs/math/src/CSparse/cs_cumsum.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_cumsum: cumulative sum
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* p [0..n] = cumulative sum of c [0..n-1], and then copy p [0..n-1] into c */
 double cs_cumsum (int *p, int *c, int n)

diff --git a/libs/math/src/CSparse/cs_dfs.c b/libs/math/src/CSparse/cs_dfs.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_dfs: depth-first search
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* depth-first-search of the graph of a matrix, starting at node j */
 int cs_dfs (int j, cs *G, int top, int *xi, int *pstack, const int *pinv)

diff --git a/libs/math/src/CSparse/cs_dmperm.c b/libs/math/src/CSparse/cs_dmperm.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_dmperm: Dulmage-Mendelsohn permutation
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* breadth-first search for coarse decomposition (C0,C1,R1 or R0,R3,C3) */
 static int cs_bfs (const cs *A, int n, int *wi, int *wj, int *queue,

diff --git a/libs/math/src/CSparse/cs_droptol.c b/libs/math/src/CSparse/cs_droptol.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_droptol: drop small entries from a sparse matrix
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 static int cs_tol (int i, int j, double aij, void *tol)
 {

diff --git a/libs/math/src/CSparse/cs_dropzeros.c b/libs/math/src/CSparse/cs_dropzeros.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_dropzeros: drop zeros from a sparse matrix
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 static int cs_nonzero (int i, int j, double aij, void *other)
 {

diff --git a/libs/math/src/CSparse/cs_dupl.c b/libs/math/src/CSparse/cs_dupl.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_dupl: remove duplicates from a sparse matrix
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* remove duplicate entries from A */
 int cs_dupl (cs *A)

diff --git a/libs/math/src/CSparse/cs_entry.c b/libs/math/src/CSparse/cs_entry.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_entry: add an entry to a sparse matrix in triplet-form
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* add an entry to a triplet matrix; return 1 if ok, 0 otherwise */
 int cs_entry (cs *T, int i, int j, double x)

diff --git a/libs/math/src/CSparse/cs_ereach.c b/libs/math/src/CSparse/cs_ereach.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_ereach: find reach of a set of nodes in graph of L
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* find nonzero pattern of Cholesky L(k,1:k-1) using etree and triu(A(:,k)) */
 int cs_ereach (const cs *A, int k, const int *parent, int *s, int *w)

diff --git a/libs/math/src/CSparse/cs_etree.c b/libs/math/src/CSparse/cs_etree.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_etree: compute the elimination tree
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* compute the etree of A (using triu(A), or A'A without forming A'A */
 int *cs_etree (const cs *A, int ata)

diff --git a/libs/math/src/CSparse/cs_fkeep.c b/libs/math/src/CSparse/cs_fkeep.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_fkeep: keep or drop entries from a sparse matrix
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* drop entries for which fkeep(A(i,j)) is false; return nz if OK, else -1 */
 int cs_fkeep (cs *A, int (*fkeep) (int, int, double, void *), void *other)

diff --git a/libs/math/src/CSparse/cs_gaxpy.c b/libs/math/src/CSparse/cs_gaxpy.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_gaxpy: sparse matrix times dense vector
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* y = A*x+y */
 int cs_gaxpy (const cs *A, const double *x, double *y)

diff --git a/libs/math/src/CSparse/cs_happly.c b/libs/math/src/CSparse/cs_happly.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_happly: apply a Householder transformation to a vector
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* apply the ith Householder vector to x */
 int cs_happly (const cs *V, int i, double beta, double *x)

diff --git a/libs/math/src/CSparse/cs_house.c b/libs/math/src/CSparse/cs_house.c
@@ -1,11 +1,6 @@
-/* +---------------------------------------------------------------------------+
-   |                     Mobile Robot Programming Toolkit (MRPT)               |
-   |                          https://www.mrpt.org/                            |
-   |                                                                           |
-   | Copyright (c) 2005-2022, Individual contributors, see AUTHORS file        |
-   | See: https://www.mrpt.org/Authors - All rights reserved.                  |
-   | Released under BSD License. See details in https://www.mrpt.org/License   |
-   +---------------------------------------------------------------------------+ */
+// CSparse/Source/cs_house: create a Householder transformation
+// CSparse, Copyright (c) 2006-2022, Timothy A. Davis. All Rights Reserved.
+// SPDX-License-Identifier: LGPL-2.1+
 #include "cs.h"
 /* create a Householder reflection [v,beta,s]=house(x), overwrite x with v,
  * where (I-beta*v*v')*x = s*e1.  See Algo 5.1.1, Golub & Van Loan, 3rd ed. */