#ifndef CFITSIO_PERL_UTIL_H
#define CFITSIO_PERL_UTIL_H

#include "fitsio.h"

#define FIXME(s)

struct FitsFile
{
  fitsfile *fptr;
  int      perlyunpacking;
  int	   is_open;
};

typedef struct FitsFile FitsFile;

#define FitsFileSV(_SV) ((FitsFile *)SvIV((SV*)SvRV(_SV)))
#define fitsfileSV(_SV) (FitsFileSV(_SV)->fptr)
#define PERLYUNPACKING(perlyunpack) ( perlyunpack < 0 ? PerlyUnpacking(-1) : perlyunpack)


typedef char logical;
typedef unsigned char byte;
typedef signed char sbyte;
typedef float cmp;
typedef double dblcmp;

void * pack1D( SV * arg, int datatype );
void * packND( SV * arg, int datatype );
void pack_element( SV* work, SV** arg, int datatype );

void* get_mortalspace(LONGLONG n, int datatype);
AV* coerce1D ( SV* arg, LONGLONG n );
AV* coerceND ( SV* arg, int ndims, LONGLONG *dims );
void unpack1D ( SV* arg, void * var, LONGLONG n, int datatype, int perlyunpack);
void unpack2D (SV* arg, void* var, LONGLONG* dims, int datatype, int perlyunpack);
void unpack3D (SV* arg, void* var, LONGLONG* dims, int datatype, int perlyunpack);
void unpackND (SV* arg, void * var, int ndims, long *dims, int datatype, int perlyunpack);
void unpackNDll (SV* arg, void * var, int ndims, LONGLONG *dims, int datatype, int perlyunpack);
void unpack2scalar ( SV* arg, void * var, long n, int datatype );
void unpackScalar( SV* arg, void *var, int datatype );
void swap_dims(int ndims, long *dims);
int PerlyUnpacking(int value);
int sizeof_datatype(int datatype);
long column_width(fitsfile * fptr, int colnum);
void check_status(int status);
void order_reverse (int nelem, long *vals);
void order_reversell (int nelem, LONGLONG *vals);

#endif /* CFITSIO_PERL_UTIL_H */