/usr/include/superlu/old_colamd.h is in libsuperlu3-dev 3.0+20070106-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* === colamd prototypes and definitions ==================================== */
/* ========================================================================== */
/*
This is the colamd include file,
http://www.cise.ufl.edu/~davis/colamd/colamd.h
for use in the colamd.c, colamdmex.c, and symamdmex.c files located at
http://www.cise.ufl.edu/~davis/colamd/
See those files for a description of colamd and symamd, and for the
copyright notice, which also applies to this file.
August 3, 1998. Version 1.0.
*/
/* ========================================================================== */
/* === Definitions ========================================================== */
/* ========================================================================== */
/* size of the knobs [ ] array. Only knobs [0..1] are currently used. */
#define COLAMD_KNOBS 20
/* number of output statistics. Only A [0..2] are currently used. */
#define COLAMD_STATS 20
/* knobs [0] and A [0]: dense row knob and output statistic. */
#define COLAMD_DENSE_ROW 0
/* knobs [1] and A [1]: dense column knob and output statistic. */
#define COLAMD_DENSE_COL 1
/* A [2]: memory defragmentation count output statistic */
#define COLAMD_DEFRAG_COUNT 2
/* A [3]: whether or not the input columns were jumbled or had duplicates */
#define COLAMD_JUMBLED_COLS 3
/* ========================================================================== */
/* === Prototypes of user-callable routines ================================= */
/* ========================================================================== */
int colamd_recommended /* returns recommended value of Alen */
(
int nnz, /* nonzeros in A */
int n_row, /* number of rows in A */
int n_col /* number of columns in A */
) ;
void colamd_set_defaults /* sets default parameters */
( /* knobs argument is modified on output */
double knobs [COLAMD_KNOBS] /* parameter settings for colamd */
) ;
int colamd /* returns TRUE if successful, FALSE otherwise*/
( /* A and p arguments are modified on output */
int n_row, /* number of rows in A */
int n_col, /* number of columns in A */
int Alen, /* size of the array A */
int A [], /* row indices of A, of size Alen */
int p [], /* column pointers of A, of size n_col+1 */
double knobs [COLAMD_KNOBS] /* parameter settings for colamd */
) ;
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