#ifndef _trr_header_h_
#define _trr_header_h_

typedef struct      /* This struct describes the order and the  */
/* sizes of the structs in a trjfile, sizes are given in bytes. */
{
    int  bDouble;        /* Double precision?                            */
    int ir_size;    /* Backward compatibility               */
    int e_size;     /* Backward compatibility               */
    int box_size;   /* Non zero if a box is present         */
    int   vir_size;       /* Backward compatibility             */
    int   pres_size;      /* Backward compatibility             */
    int top_size;   /* Backward compatibility               */
    int sym_size;   /* Backward compatibility               */
    int x_size;     /* Non zero if coordinates are present      */
    int v_size;     /* Non zero if velocities are present       */
    int f_size;     /* Non zero if forces are present       */

    int natoms;     /* The total number of atoms            */
    int step;       /* Current step number              */
    int nre;        /* Backward compatibility               */
    float   tf;     /* Current time                 */
    float   lambdaf;        /* Current value of lambda          */
    double  td;     /* Current time                 */
    double  lambdad;        /* Current value of lambda          */
} t_trnheader;

int do_trnheader(XDRFILE *xd, char bRead, t_trnheader *sh);

#endif