#include <stdio.h>
/*-----return codes-----*/
#define BAD_LEN    -1
#define OK	    0

main(argc,argv)
     int argc;
     char **argv;
  {
    FILE  *inf,*opf;
    int   n,items_read;
    char  carr[4];
    char  tchar[4];
    float outval;

    if (argc > 1)
      inf=fopen(argv[1],"r");
    else
      inf=stdin;
    if (argc > 2)
      opf=fopen(argv[2],"w");
    else
      opf=stdout;

    while ((n = fread(carr,1,4,inf)) == 4) {
      tchar[0] = carr[3];
      tchar[1] = carr[2];
      tchar[2] = carr[1];
      tchar[3] = carr[0];
      memcpy(&outval,tchar,4);
      fwrite(&outval,sizeof(float),1,opf);
      items_read++;
    }
    if (ferror(inf)) {
      fprintf(stderr,"?Read error, file %s items %d\n", 
	      argv[1],items_read);
      exit(1);
    }
    fclose(inf);
    fclose(opf);
  }