sl@0: /*
sl@0:  * Copyright (c) 1998
sl@0:  * Silicon Graphics Computer Systems, Inc.
sl@0:  *
sl@0:  * Copyright (c) 1999 
sl@0:  * Boris Fomitchev
sl@0:  *
sl@0:  * This material is provided "as is", with absolutely no warranty expressed
sl@0:  * or implied. Any use is at your own risk.
sl@0:  *
sl@0:  * Permission to use or copy this software for any purpose is hereby granted 
sl@0:  * without fee, provided the above notices are retained on all copies.
sl@0:  * Permission to modify the code and to distribute modified code is granted,
sl@0:  * provided the above notices are retained, and a notice that the code was
sl@0:  * modified is included with the above copyright notice.
sl@0:  *
sl@0:  */
sl@0: 
sl@0: #ifndef _STLP_BITSET
sl@0: #define _STLP_BITSET
sl@0: 
sl@0: // This implementation of bitset<> has a second template parameter,
sl@0: // _WordT, which defaults to unsigned long.  *YOU SHOULD NOT USE
sl@0: // THIS FEATURE*.  It is experimental, and it may be removed in
sl@0: // future releases.
sl@0: 
sl@0: // A bitset of size N, using words of type _WordT, will have 
sl@0: // N % (sizeof(_WordT) * CHAR_BIT) unused bits.  (They are the high-
sl@0: // order bits in the highest word.)  It is a class invariant
sl@0: // of class bitset<> that those unused bits are always zero.
sl@0: 
sl@0: // Most of the actual code isn't contained in bitset<> itself, but in the 
sl@0: // base class _Base_bitset.  The base class works with whole words, not with
sl@0: // individual bits.  This allows us to specialize _Base_bitset for the
sl@0: // important special case where the bitset is only a single word.
sl@0: 
sl@0: // The C++ standard does not define the precise semantics of operator[].
sl@0: // In this implementation the const version of operator[] is equivalent
sl@0: // to test(), except that it does no range checking.  The non-const version
sl@0: // returns a reference to a bit, again without doing any range checking.
sl@0: 
sl@0: # ifndef _STLP_OUTERMOST_HEADER_ID
sl@0: #  define _STLP_OUTERMOST_HEADER_ID 0x2
sl@0: #  include <stl/_prolog.h>
sl@0: # endif
sl@0: 
sl@0: #ifdef _STLP_PRAGMA_ONCE
sl@0: # pragma once
sl@0: #endif
sl@0: 
sl@0: # include <stl/_bitset.h>
sl@0: 
sl@0: # if (_STLP_OUTERMOST_HEADER_ID == 0x2 )
sl@0: #  include <stl/_epilog.h>
sl@0: #  undef _STLP_OUTERMOST_HEADER_ID
sl@0: # endif
sl@0: 
sl@0: #endif /* _STLP_BITSET */
sl@0: 
sl@0: 
sl@0: // Local Variables:
sl@0: // mode:C++
sl@0: // End:
sl@0: