    isdirectory       134 clib/dscan.c      if (!isdirectory(path))
    isdirectory        87 clib/fio.c        if (dir_len && !isdirectory(dir))
    isdirectory        63 include/fio.h  int isdirectory(char *);            /* check for directory name */
    isdirectory       474 source/daymvdel.c    if (!isdirectory(wrd))
    isdirectory       494 source/daymvdel.c          if (!isdirectory(wrd))
    isdirectory      1139 source/daymvdel.c       if (!isdirectory(wrk))
    isdirectory       105 source/rmtree.c    if (!isdirectory(dir_path))