#include "stdlib.h"

#include "string.h"

// this should match setting in src/lmptype.h

typedef int64_t bigint;

main(int narg, char **arg)

{

  int i,j,k,m,n;

  int ntimestep,natoms,size_one,nchunk,triclinic;

  bigint ntimestep,natoms;

  int size_one,nchunk,triclinic;

  double xlo,xhi,ylo,yhi,zlo,zhi,xy,xz,yz;

  int maxbuf = 0;

  double *buf = NULL;

    while (1) {

      fread(&ntimestep,sizeof(int),1,fp);

      fread(&ntimestep,sizeof(bigint),1,fp);

      // detect end-of-file

	break;

      }

      fread(&natoms,sizeof(int),1,fp);

      fread(&natoms,sizeof(bigint),1,fp);

      fread(&triclinic,sizeof(int),1,fp);

      fread(&xlo,sizeof(double),1,fp);

      fread(&xhi,sizeof(double),1,fp);

      fread(&size_one,sizeof(int),1,fp);

      fread(&nchunk,sizeof(int),1,fp);

      if (sizeof(bigint) == 8) {

	fprintf(fptxt,"ITEM: TIMESTEP\n");

	fprintf(fptxt,"%ld\n",ntimestep);

	fprintf(fptxt,"ITEM: NUMBER OF ATOMS\n");

	fprintf(fptxt,"%ld\n",natoms);

      } else if (sizeof(bigint) == 4) {

	fprintf(fptxt,"ITEM: TIMESTEP\n");

	fprintf(fptxt,"%d\n",ntimestep);

	fprintf(fptxt,"ITEM: NUMBER OF ATOMS\n");

	fprintf(fptxt,"%d\n",natoms);

      }

      if (!triclinic) {

	fprintf(fptxt,"ITEM: BOX BOUNDS\n");

	fprintf(fptxt,"%g %g\n",xlo,xhi);

	}

      }

      printf(" %d",ntimestep);

      if (sizeof(bigint) == 8) printf(" %ld",ntimestep);

      else if (sizeof(bigint) == 4) printf(" %d",ntimestep);

      fflush(stdout);

    }

    printf("\n");