/* f2c.h  --  Standard Fortran to C header file */

/**  barf  [ba:rf]  2.  "He suggested using FORTRAN, and everybody barfed."

    - From The Shogakukan DICTIONARY OF NEW ENGLISH (Second edition) */

#ifndef F2C_INCLUDE
#define F2C_INCLUDE

typedef int integer;
typedef unsigned int uinteger;
typedef char *address;
typedef short int shortint;
typedef float real;
typedef double doublereal;
typedef struct {
    real r, i;
} f2c_complex;
typedef struct {
    doublereal r, i;
} doublecomplex;
typedef int logical;
typedef short int shortlogical;
typedef char logical1;
typedef char integer1;
#ifdef INTEGER_STAR_8   /* Adjust for integer*8. */
    typedef long longint;       /* system-dependent */
    typedef unsigned long ulongint; /* system-dependent */
    #define qbit_clear(a,b) ((a) & ~((ulongint)1 << (b)))
    #define qbit_set(a,b)   ((a) |  ((ulongint)1 << (b)))
#endif

#define TRUE_ (1)
#define FALSE_ (0)

/* Extern is for use with -E */
#ifndef Extern
    #define Extern extern
#endif

/* I/O stuff */

#ifdef f2c_i2
    /* for -i2 */
    typedef short flag;
    typedef short ftnlen;
    typedef short ftnint;
#else
    typedef int flag;
    typedef int ftnlen;
    typedef int ftnint;
#endif

/*external read, write*/
typedef struct {
    flag cierr;
    ftnint ciunit;
    flag ciend;
    char *cifmt;
    ftnint cirec;
} cilist;

/*internal read, write*/
typedef struct {
    flag icierr;
    char *iciunit;
    flag iciend;
    char *icifmt;
    ftnint icirlen;
    ftnint icirnum;
} icilist;

/*open*/
typedef struct {
    flag oerr;
    ftnint ounit;
    char *ofnm;
    ftnlen ofnmlen;
    char *osta;
    char *oacc;
    char *ofm;
    ftnint orl;
    char *oblnk;
} olist;

/*close*/
typedef struct {
    flag cerr;
    ftnint cunit;
    char *csta;
} cllist;

/*rewind, backspace, endfile*/
typedef struct {
    flag aerr;
    ftnint aunit;
} alist;

/* inquire */
typedef struct {
    flag inerr;
    ftnint inunit;
    char *infile;
    ftnlen infilen;
    ftnint  *inex;  /*parameters in standard's order*/
    ftnint  *inopen;
    ftnint  *innum;
    ftnint  *innamed;
    char    *inname;
    ftnlen  innamlen;
    char    *inacc;
    ftnlen  inacclen;
    char    *inseq;
    ftnlen  inseqlen;
    char    *indir;
    ftnlen  indirlen;
    char    *infmt;
    ftnlen  infmtlen;
    char    *inform;
    ftnint  informlen;
    char    *inunf;
    ftnlen  inunflen;
    ftnint  *inrecl;
    ftnint  *innrec;
    char    *inblank;
    ftnlen  inblanklen;
} inlist;

#define VOID void

union Multitype {   /* for multiple entry points */
    integer1 g;
    shortint h;
    integer i;
    /* longint j; */
    real r;
    doublereal d;
    f2c_complex c;
    doublecomplex z;
};

typedef union Multitype Multitype;

/*typedef igraph_integer_t Long;*/  /* No longer used; formerly in Namelist */

struct Vardesc {    /* for Namelist */
    char *name;
    char *addr;
    ftnlen *dims;
    int  type;
};
typedef struct Vardesc Vardesc;

struct Namelist {
    char *name;
    Vardesc **vars;
    int nvars;
};
typedef struct Namelist Namelist;

#define abs(x) ((x) >= 0 ? (x) : -(x))
#define dabs(x) (doublereal)abs(x)
#ifndef min
#define min(a,b) ((a) <= (b) ? (a) : (b))
#endif
#ifndef max
#define max(a,b) ((a) >= (b) ? (a) : (b))
#endif
#define dmin(a,b) (doublereal)min(a,b)
#define dmax(a,b) (doublereal)max(a,b)
#define bit_test(a,b)   ((a) >> (b) & 1)
#define bit_clear(a,b)  ((a) & ~((uinteger)1 << (b)))
#define bit_set(a,b)    ((a) |  ((uinteger)1 << (b)))

/* procedure parameter types for -A and -C++ */

#define F2C_proc_par_types 1
#ifdef __cplusplus
    typedef int /* Unknown procedure type */ (*U_fp)(...);
    typedef shortint (*J_fp)(...);
    typedef integer (*I_fp)(...);
    typedef real (*R_fp)(...);
    typedef doublereal (*D_fp)(...), (*E_fp)(...);
    typedef /* Complex */ VOID (*C_fp)(...);
    typedef /* Double Complex */ VOID (*Z_fp)(...);
    typedef logical (*L_fp)(...);
    typedef shortlogical (*K_fp)(...);
    typedef /* Character */ VOID (*H_fp)(...);
    typedef /* Subroutine */ int (*S_fp)(...);
#else
    typedef int /* Unknown procedure type */ (*U_fp)();
    typedef shortint (*J_fp)();
    typedef integer (*I_fp)();
    typedef real (*R_fp)();
    typedef doublereal (*D_fp)(), (*E_fp)();
    typedef /* Complex */ VOID (*C_fp)();
    typedef /* Double Complex */ VOID (*Z_fp)();
    typedef logical (*L_fp)();
    typedef shortlogical (*K_fp)();
    typedef /* Character */ VOID (*H_fp)();
    typedef /* Subroutine */ int (*S_fp)();
#endif
/* E_fp is for real functions when -R is not specified */
typedef VOID C_f;   /* complex function */
typedef VOID H_f;   /* character function */
typedef VOID Z_f;   /* double complex function */
typedef doublereal E_f; /* real function with -R not specified */

/* undef any lower-case symbols that your C compiler predefines, e.g.: */

#ifndef Skip_f2c_Undefs
    #undef cray
    #undef gcos
    #undef mc68010
    #undef mc68020
    #undef mips
    #undef pdp11
    #undef sgi
    #undef sparc
    #undef sun
    #undef sun2
    #undef sun3
    #undef sun4
    #undef u370
    #undef u3b
    #undef u3b2
    #undef u3b5
    #undef unix
    #undef vax
#endif

#include "config.h"

/* It is an ugly hack that we add these headers here, but it is needed to make
 * the combination of external BLAS/LAPACK and internal ARPACK work */

#include "linalg/blas_internal.h"
#include "linalg/lapack_internal.h"
#include "linalg/arpack_internal.h"

#endif
