include/SuiteSparse_config.h

/* ========================================================================== */
/* === SuiteSparse_config =================================================== */
/* ========================================================================== */

/* Configuration file for SuiteSparse: a Suite of Sparse matrix packages
 * (AMD, COLAMD, CCOLAMD, CAMD, CHOLMOD, UMFPACK, CXSparse, and others).
 *
 * SuiteSparse_config.h provides the definition of the long integer.  On most
 * systems, a C program can be compiled in LP64 mode, in which long's and
 * pointers are both 64-bits, and int's are 32-bits.  Windows 64, however, uses
 * the LLP64 model, in which int's and long's are 32-bits, and long long's and
 * pointers are 64-bits.
 *
 * SuiteSparse packages that include long integer versions are
 * intended for the LP64 mode.  However, as a workaround for Windows 64
 * (and perhaps other systems), the long integer can be redefined.
 *
 * If _WIN64 is defined, then the __int64 type is used instead of long.
 *
 * The long integer can also be defined at compile time.  For example, this
 * could be added to SuiteSparse_config.mk:
 *
 * CFLAGS = -O -D'SuiteSparse_long=long long' \
 *  -D'SuiteSparse_long_max=9223372036854775801' -D'SuiteSparse_long_idd="lld"'
 *
 * This file defines SuiteSparse_long as either long (on all but _WIN64) or
 * __int64 on Windows 64.  The intent is that a SuiteSparse_long is always a
 * 64-bit integer in a 64-bit code.  ptrdiff_t might be a better choice than
 * long; it is always the same size as a pointer.
 *
 * This file also defines the SUITESPARSE_VERSION and related definitions.
 *
 * Copyright (c) 2012, Timothy A. Davis.  No licensing restrictions apply
 * to this file or to the SuiteSparse_config directory.
 * Author: Timothy A. Davis.
 */

#ifndef SUITESPARSE_CONFIG_H
#define SUITESPARSE_CONFIG_H

#ifdef __cplusplus
extern "C" {
#endif

#include <limits.h>
#include <stdlib.h>

/* ========================================================================== */
/* === SuiteSparse_long ===================================================== */
/* ========================================================================== */

#ifndef SuiteSparse_long

#ifdef _WIN64

#define SuiteSparse_long __int64
#define SuiteSparse_long_max _I64_MAX
#define SuiteSparse_long_idd "I64d"

#else

#define SuiteSparse_long long
#define SuiteSparse_long_max LONG_MAX
#define SuiteSparse_long_idd "ld"

#endif
#define SuiteSparse_long_id "%" SuiteSparse_long_idd
#endif

/* ========================================================================== */
/* === SuiteSparse_config parameters and functions ========================== */
/* ========================================================================== */

/* SuiteSparse-wide parameters are placed in this struct.  It is meant to be
   an extern, globally-accessible struct.  It is not meant to be updated
   frequently by multiple threads.  Rather, if an application needs to modify
   SuiteSparse_config, it should do it once at the beginning of the application,
   before multiple threads are launched.

   The intent of these function pointers is that they not be used in your
   application directly, except to assign them to the desired user-provided
   functions.  Rather, you should use the
 */

struct SuiteSparse_config_struct
{
    void *(*malloc_func) (size_t) ;             /* pointer to malloc */
    void *(*calloc_func) (size_t, size_t) ;     /* pointer to calloc */
    void *(*realloc_func) (void *, size_t) ;    /* pointer to realloc */
    void (*free_func) (void *) ;                /* pointer to free */
    int (*printf_func) (const char *, ...) ;    /* pointer to printf */
    double (*hypot_func) (double, double) ;     /* pointer to hypot */
    int (*divcomplex_func) (double, double, double, double, double *, double *);
} ;

extern struct SuiteSparse_config_struct SuiteSparse_config ;

void SuiteSparse_start ( void ) ;   /* called to start SuiteSparse */

void SuiteSparse_finish ( void ) ;  /* called to finish SuiteSparse */

void *SuiteSparse_malloc    /* pointer to allocated block of memory */
(
    size_t nitems,          /* number of items to malloc (>=1 is enforced) */
    size_t size_of_item     /* sizeof each item */
) ;

void *SuiteSparse_calloc    /* pointer to allocated block of memory */
(
    size_t nitems,          /* number of items to calloc (>=1 is enforced) */
    size_t size_of_item     /* sizeof each item */
) ;

void *SuiteSparse_realloc   /* pointer to reallocated block of memory, or
                               to original block if the realloc failed. */
(
    size_t nitems_new,      /* new number of items in the object */
    size_t nitems_old,      /* old number of items in the object */
    size_t size_of_item,    /* sizeof each item */
    void *p,                /* old object to reallocate */
    int *ok                 /* 1 if successful, 0 otherwise */
) ;

void *SuiteSparse_free      /* always returns NULL */
(
    void *p                 /* block to free */
) ;

void SuiteSparse_tic    /* start the timer */
(
    double tic [2]      /* output, contents undefined on input */
) ;

double SuiteSparse_toc  /* return time in seconds since last tic */
(
    double tic [2]      /* input: from last call to SuiteSparse_tic */
) ;

double SuiteSparse_time  /* returns current wall clock time in seconds */
(
    void
) ;

/* returns sqrt (x^2 + y^2), computed reliably */
double SuiteSparse_hypot (double x, double y) ;

/* complex division of c = a/b */
int SuiteSparse_divcomplex
(
    double ar, double ai,	/* real and imaginary parts of a */
    double br, double bi,	/* real and imaginary parts of b */
    double *cr, double *ci	/* real and imaginary parts of c */
) ;

/* determine which timer to use, if any */
#ifndef NTIMER
#ifdef _POSIX_C_SOURCE
#if    _POSIX_C_SOURCE >= 199309L
#define SUITESPARSE_TIMER_ENABLED
#endif
#endif
#endif

/* SuiteSparse printf macro */
#define SUITESPARSE_PRINTF(params) \
{ \
    if (SuiteSparse_config.printf_func != NULL) \
    { \
        (void) (SuiteSparse_config.printf_func) params ; \
    } \
}

/* ========================================================================== */
/* === SuiteSparse version ================================================== */
/* ========================================================================== */

/* SuiteSparse is not a package itself, but a collection of packages, some of
 * which must be used together (UMFPACK requires AMD, CHOLMOD requires AMD,
 * COLAMD, CAMD, and CCOLAMD, etc).  A version number is provided here for the
 * collection itself, which is also the version number of SuiteSparse_config.
 */

int SuiteSparse_version     /* returns SUITESPARSE_VERSION */
(
    /* output, not defined on input.  Not used if NULL.  Returns
       the three version codes in version [0..2]:
       version [0] is SUITESPARSE_MAIN_VERSION
       version [1] is SUITESPARSE_SUB_VERSION
       version [2] is SUITESPARSE_SUBSUB_VERSION
       */
    int version [3]
) ;

/* Versions prior to 4.2.0 do not have the above function.  The following
   code fragment will work with any version of SuiteSparse:

   #ifdef SUITESPARSE_HAS_VERSION_FUNCTION
   v = SuiteSparse_version (NULL) ;
   #else
   v = SUITESPARSE_VERSION ;
   #endif
*/
#define SUITESPARSE_HAS_VERSION_FUNCTION

#define SUITESPARSE_DATE "May 17, 2021"
#define SUITESPARSE_VER_CODE(main,sub) ((main) * 1000 + (sub))
#define SUITESPARSE_MAIN_VERSION 5
#define SUITESPARSE_SUB_VERSION 10
#define SUITESPARSE_SUBSUB_VERSION 1
#define SUITESPARSE_VERSION \
    SUITESPARSE_VER_CODE(SUITESPARSE_MAIN_VERSION,SUITESPARSE_SUB_VERSION)

#ifdef __cplusplus
}
#endif
#endif