#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>

void Pervert8(char *buf)
{
        char temp;
        unsigned i;

        for (i=0;i<4;i++) {
                temp=buf[i];
                buf[i]=buf[7-i];
                buf[7-i]=temp;
        }
}

#define PervertDouble(x) Pervert8((char*)x);

// collect_bf sample_interval_in_seconds output_filename
void main(int argc, char *argv[])
{
  double avg;
  double time;
  FILE *infile;
  struct stat st;
  unsigned numsamples;
  unsigned i;

  if (argc!=2 && argc!=3) { 
    printf("Usage: bo_to_text input_filename [-pervert]\n");
    exit(0);
  }
  if (stat(argv[1],&st)) { 
    fprintf(stderr,"Can't stat %s\n",argv[1]);
    exit(-1);
  }
  if ((st.st_size/16)*16 != st.st_size) { 
    fprintf(stderr,"%s does not contain an integral number of records\n",
	    argv[1]); 
    exit(-2);
  }

  numsamples = st.st_size/16;

  infile=fopen(argv[1],"rb");

  for (i=0;i<numsamples;i++) { 
    if (fread(&time,sizeof(double),1,infile)!=1) {
      break;
    }
    if (fread(&avg,sizeof(double),1,infile)!=1) {
      break;
    }
    if (argc==3) {
      PervertDouble(&time);
      PervertDouble(&avg);
    }
    printf("%30.20le %8lf\n",time,avg);
  }
  fclose(infile);
}