PRODUCT  :  Turbo C++, Borland C++                 NUMBER  :  815
  VERSION  :  All
       OS  :  DOS
     DATE  :  October 19, 1993                         PAGE  :  1/2

    TITLE  :  fstream vs. FILE * vs. DOS handles




  The following provides, in tabular format, the equivalent
  functions between FILE pointers, C++ file Streams and DOS file
  handles.  fstreams consist of fstreams, ifstreams and ofstreams.
  FILE pointers are obtained from fopen, freopen, fdopen and other
  functions.  DOS handles are obtained from open, _open, create and
  others

  FILE *          FSTREAM             HANDLE
  ================================================
  fopen          fp.open or           open
                 constructor
  fseek          fp.seekp             lseek
  ftell          fp.tellp             tell
  feof           fp.eof               eof
  fread          fp.read              read
  fwrite         fp.write             write
  fileno         (fp.rdbuf())->fd()   <NA>
  use fileno     use fstrno           chsize
  fstrno
  fcloseall                           <NA>
  fdopen         fp.attach            <NA>
  ferror
  fflush         fp.sync              <NA>
  fgetc          fp.get               use read
  fgetpos        use tellp            use tell
  fsetpos        use seekp            use lseek
  fgets          fp.get               use read
  use fileno     use fstrno           filelength
  flushall                            <NA>
  fprintf        iomanip              <NA>
  fputc          operator <<          use write
  fputs          operator <<          use write
  freopen                             <NA>
  fscanf         operator >>          <NA>
                 with iomanip
  use fileno     use fstrno           fstat
  use fileno     use fstrno           getftime
  use fileno     use fstrno           setftime
  use fileno     use fstrno           lock
  use filno      use fstrno           setmode
  setvbuf                             <NA>
  use fdopen     use attach           sopen
  use fileno     use fstrno           unlock













  PRODUCT  :  Turbo C++, Borland C++                 NUMBER  :  815
  VERSION  :  All
       OS  :  DOS
     DATE  :  October 19, 1993                         PAGE  :  2/2

    TITLE  :  fstream vs. FILE * vs. DOS handles




  Stream equivalent of file number:
      #define fstrno(fp) (((fp).rdbuf())->fd())

  DISCLAIMER: You have the right to use this technical information
  subject to the terms of the No-Nonsense License Statement that
  you received with the Borland product to which this information
  pertains.