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──The Microsoft iostream Classes────────────────────────────────────────────
 
  static long bitalloc();
 
  Remarks
 
  The ios class currently defines 15 format flag bits accessible through
  flags and other member functions. These bits reside in a 32-bit private
  ios data member and are accessed through enumerators such as ios::left
  and ios::hex.
 
  The bitalloc member function provides a mask for a previously unused bit
  in the data member. Once you obtain the mask, you can use it to set or
  test the corresponding custom flag bit in conjunction with the ios
  member functions and manipulators listed below under "See Also."
 
  See Also
 
  ◄ios::flags►, ◄ios::setf►, ◄ios::unsetf►, ◄ios setiosflags manipulator►,
  ◄ios resetiosflags manipulator►
 
 
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