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881 lines
23 KiB
C++
881 lines
23 KiB
C++
/*
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* Copyright (c) 1998
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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* This material is provided "as is", with absolutely no warranty expressed
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* or implied. Any use is at your own risk.
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*
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* Permission to use or copy this software for any purpose is hereby granted
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* without fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*
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*/
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#ifndef _STLP_BITSET_H
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#define _STLP_BITSET_H
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// A bitset of size N has N % (sizeof(unsigned long) * CHAR_BIT) unused
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// bits. (They are the high- order bits in the highest word.) It is
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// a class invariant of class bitset<> that those unused bits are
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// always zero.
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// Most of the actual code isn't contained in bitset<> itself, but in the
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// base class _Base_bitset. The base class works with whole words, not with
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// individual bits. This allows us to specialize _Base_bitset for the
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// important special case where the bitset is only a single word.
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// The C++ standard does not define the precise semantics of operator[].
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// In this implementation the const version of operator[] is equivalent
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// to test(), except that it does no range checking. The non-const version
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// returns a reference to a bit, again without doing any range checking.
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#ifndef _STLP_INTERNAL_ALGOBASE_H
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# include <stl/_algobase.h>
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#endif
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#ifndef _STLP_INTERNAL_ALLOC_H
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# include <stl/_alloc.h>
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#endif
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#ifndef _STLP_INTERNAL_ITERATOR_H
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# include <stl/_iterator.h>
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#endif
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#ifndef _STLP_INTERNAL_UNINITIALIZED_H
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# include <stl/_uninitialized.h>
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#endif
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#ifndef _STLP_RANGE_ERRORS_H
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# include <stl/_range_errors.h>
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#endif
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#ifndef _STLP_INTERNAL_STRING_H
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# include <stl/_string.h>
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#endif
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#define __BITS_PER_WORD (CHAR_BIT*sizeof(unsigned long))
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#define __BITSET_WORDS(__n) ((__n + __BITS_PER_WORD - 1)/__BITS_PER_WORD)
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_STLP_BEGIN_NAMESPACE
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_STLP_MOVE_TO_PRIV_NAMESPACE
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// structure to aid in counting bits
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class _STLP_CLASS_DECLSPEC _Bs_G
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{
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public:
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//returns the number of bit set within the buffer between __beg and __end.
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static size_t _S_count(const unsigned char *__beg, const unsigned char *__end)
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#if defined (_STLP_USE_NO_IOSTREAMS)
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{
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size_t __result = 0;
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for (; __beg != __end; ++__beg) {
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for (size_t i = 0; i < (sizeof(unsigned char) * 8); ++i) {
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if ((*__beg & (1 << i)) != 0) { ++__result; }
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}
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}
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return __result;
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}
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#else
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;
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#endif
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// Mapping from 8 bit unsigned integers to the index of the first one bit set:
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static unsigned char _S_first_one(unsigned char __x)
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#if defined (_STLP_USE_NO_IOSTREAMS)
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{
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for (unsigned char i = 0; i < (sizeof(unsigned char) * 8); ++i) {
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if ((__x & (1 << i)) != 0) { return i; }
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}
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return 0;
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}
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#else
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;
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#endif
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};
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//
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// Base class: general case.
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//
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template<size_t _Nw>
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struct _Base_bitset {
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typedef unsigned long _WordT;
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_WordT _M_w[_Nw]; // 0 is the least significant word.
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_Base_bitset() { _M_do_reset(); }
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_Base_bitset(unsigned long __val) {
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_M_do_reset();
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_M_w[0] = __val;
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}
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static size_t _STLP_CALL _S_whichword( size_t __pos ) {
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return __pos / __BITS_PER_WORD;
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}
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static size_t _STLP_CALL _S_whichbyte( size_t __pos ) {
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return (__pos % __BITS_PER_WORD) / CHAR_BIT;
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}
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static size_t _STLP_CALL _S_whichbit( size_t __pos ) {
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return __pos % __BITS_PER_WORD;
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}
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static _WordT _STLP_CALL _S_maskbit( size_t __pos ) {
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return __STATIC_CAST(_WordT,1) << _S_whichbit(__pos);
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}
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_WordT& _M_getword(size_t __pos) { return _M_w[_S_whichword(__pos)]; }
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_WordT _M_getword(size_t __pos) const { return _M_w[_S_whichword(__pos)]; }
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_WordT& _M_hiword() { return _M_w[_Nw - 1]; }
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_WordT _M_hiword() const { return _M_w[_Nw - 1]; }
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void _M_do_and(const _Base_bitset<_Nw>& __x) {
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for ( size_t __i = 0; __i < _Nw; __i++ ) {
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_M_w[__i] &= __x._M_w[__i];
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}
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}
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void _M_do_or(const _Base_bitset<_Nw>& __x) {
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for ( size_t __i = 0; __i < _Nw; __i++ ) {
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_M_w[__i] |= __x._M_w[__i];
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}
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}
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void _M_do_xor(const _Base_bitset<_Nw>& __x) {
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for ( size_t __i = 0; __i < _Nw; __i++ ) {
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_M_w[__i] ^= __x._M_w[__i];
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}
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}
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void _M_do_left_shift(size_t __shift);
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void _M_do_right_shift(size_t __shift);
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void _M_do_flip() {
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for ( size_t __i = 0; __i < _Nw; __i++ ) {
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_M_w[__i] = ~_M_w[__i];
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}
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}
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void _M_do_set() {
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for ( size_t __i = 0; __i < _Nw; __i++ ) {
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_M_w[__i] = ~__STATIC_CAST(_WordT,0);
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}
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}
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void _M_do_reset() { memset(_M_w, 0, _Nw * sizeof(_WordT)); }
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bool _M_is_equal(const _Base_bitset<_Nw>& __x) const {
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for (size_t __i = 0; __i < _Nw; ++__i) {
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if (_M_w[__i] != __x._M_w[__i])
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return false;
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}
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return true;
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}
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bool _M_is_any() const {
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for ( size_t __i = 0; __i < _Nw ; __i++ ) {
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if ( _M_w[__i] != __STATIC_CAST(_WordT,0) )
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return true;
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}
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return false;
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}
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size_t _M_do_count() const {
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const unsigned char* __byte_ptr = (const unsigned char*)_M_w;
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const unsigned char* __end_ptr = (const unsigned char*)(_M_w+_Nw);
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return _Bs_G::_S_count(__byte_ptr, __end_ptr);
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}
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unsigned long _M_do_to_ulong() const;
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// find first "on" bit
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size_t _M_do_find_first(size_t __not_found) const;
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// find the next "on" bit that follows "prev"
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size_t _M_do_find_next(size_t __prev, size_t __not_found) const;
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};
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//
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// Base class: specialization for a single word.
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//
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_STLP_TEMPLATE_NULL
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struct _Base_bitset<1UL> {
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typedef unsigned long _WordT;
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typedef _Base_bitset<1UL> _Self;
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_WordT _M_w;
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_Base_bitset( void ) : _M_w(0) {}
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_Base_bitset(unsigned long __val) : _M_w(__val) {}
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static size_t _STLP_CALL _S_whichword( size_t __pos ) {
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return __pos / __BITS_PER_WORD ;
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}
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static size_t _STLP_CALL _S_whichbyte( size_t __pos ) {
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return (__pos % __BITS_PER_WORD) / CHAR_BIT;
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}
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static size_t _STLP_CALL _S_whichbit( size_t __pos ) {
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return __pos % __BITS_PER_WORD;
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}
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static _WordT _STLP_CALL _S_maskbit( size_t __pos ) {
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return (__STATIC_CAST(_WordT,1)) << _S_whichbit(__pos);
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}
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_WordT& _M_getword(size_t) { return _M_w; }
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_WordT _M_getword(size_t) const { return _M_w; }
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_WordT& _M_hiword() { return _M_w; }
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_WordT _M_hiword() const { return _M_w; }
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void _M_do_and(const _Self& __x) { _M_w &= __x._M_w; }
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void _M_do_or(const _Self& __x) { _M_w |= __x._M_w; }
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void _M_do_xor(const _Self& __x) { _M_w ^= __x._M_w; }
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void _M_do_left_shift(size_t __shift) { _M_w <<= __shift; }
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void _M_do_right_shift(size_t __shift) { _M_w >>= __shift; }
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void _M_do_flip() { _M_w = ~_M_w; }
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void _M_do_set() { _M_w = ~__STATIC_CAST(_WordT,0); }
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void _M_do_reset() { _M_w = 0; }
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bool _M_is_equal(const _Self& __x) const {
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return _M_w == __x._M_w;
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}
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bool _M_is_any() const {
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return _M_w != 0;
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}
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size_t _M_do_count() const {
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const unsigned char* __byte_ptr = (const unsigned char*)&_M_w;
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const unsigned char* __end_ptr = ((const unsigned char*)&_M_w)+sizeof(_M_w);
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return _Bs_G::_S_count(__byte_ptr, __end_ptr);
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}
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unsigned long _M_do_to_ulong() const { return _M_w; }
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inline size_t _M_do_find_first(size_t __not_found) const;
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// find the next "on" bit that follows "prev"
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inline size_t _M_do_find_next(size_t __prev, size_t __not_found) const;
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};
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// ------------------------------------------------------------
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//
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// Definitions of should-be-non-inline functions from the single-word version of
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// _Base_bitset.
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//
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inline size_t
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_Base_bitset<1UL>::_M_do_find_first(size_t __not_found) const {
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// typedef unsigned long _WordT;
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_WordT __thisword = _M_w;
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if ( __thisword != __STATIC_CAST(_WordT,0) ) {
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// find byte within word
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for ( size_t __j = 0; __j < sizeof(_WordT); __j++ ) {
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unsigned char __this_byte
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= __STATIC_CAST(unsigned char,(__thisword & (~(unsigned char)0)));
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if ( __this_byte )
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return __j*CHAR_BIT + _Bs_G::_S_first_one(__this_byte);
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__thisword >>= CHAR_BIT;
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}
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}
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// not found, so return a value that indicates failure.
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return __not_found;
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}
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inline size_t
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_Base_bitset<1UL>::_M_do_find_next(size_t __prev,
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size_t __not_found ) const {
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// make bound inclusive
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++__prev;
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// check out of bounds
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if ( __prev >= __BITS_PER_WORD )
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return __not_found;
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// search first (and only) word
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_WordT __thisword = _M_w;
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// mask off bits below bound
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__thisword &= (~__STATIC_CAST(_WordT,0)) << _S_whichbit(__prev);
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if ( __thisword != __STATIC_CAST(_WordT,0) ) {
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// find byte within word
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// get first byte into place
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__thisword >>= _S_whichbyte(__prev) * CHAR_BIT;
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for ( size_t __j = _S_whichbyte(__prev); __j < sizeof(_WordT); __j++ ) {
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unsigned char __this_byte
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= __STATIC_CAST(unsigned char,(__thisword & (~(unsigned char)0)));
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if ( __this_byte )
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return __j*CHAR_BIT + _Bs_G::_S_first_one(__this_byte);
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__thisword >>= CHAR_BIT;
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}
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}
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// not found, so return a value that indicates failure.
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return __not_found;
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} // end _M_do_find_next
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// ------------------------------------------------------------
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// Helper class to zero out the unused high-order bits in the highest word.
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template <size_t _Extrabits> struct _Sanitize {
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static void _STLP_CALL _M_do_sanitize(unsigned long& __val)
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{ __val &= ~((~__STATIC_CAST(unsigned long,0)) << _Extrabits); }
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};
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_STLP_TEMPLATE_NULL struct _Sanitize<0UL> {
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static void _STLP_CALL _M_do_sanitize(unsigned long) {}
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};
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_STLP_MOVE_TO_STD_NAMESPACE
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// ------------------------------------------------------------
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// Class bitset.
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// _Nb may be any nonzero number of type size_t.
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template<size_t _Nb>
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class bitset : public _STLP_PRIV _Base_bitset<__BITSET_WORDS(_Nb) > {
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public:
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enum { _Words = __BITSET_WORDS(_Nb) } ;
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private:
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typedef _STLP_PRIV _Base_bitset< _Words > _Base;
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void _M_do_sanitize() {
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_STLP_PRIV _Sanitize<_Nb%__BITS_PER_WORD >::_M_do_sanitize(this->_M_hiword());
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}
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public:
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typedef unsigned long _WordT;
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struct reference;
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friend struct reference;
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// bit reference:
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struct reference {
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typedef _STLP_PRIV _Base_bitset<_Words > _Bitset_base;
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typedef bitset<_Nb> _Bitset;
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// friend _Bitset;
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_WordT *_M_wp;
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size_t _M_bpos;
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// should be left undefined
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reference() {}
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reference( _Bitset& __b, size_t __pos ) {
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_M_wp = &__b._M_getword(__pos);
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_M_bpos = _Bitset_base::_S_whichbit(__pos);
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}
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public:
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~reference() {}
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// for b[i] = __x;
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reference& operator=(bool __x) {
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if ( __x )
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*_M_wp |= _Bitset_base::_S_maskbit(_M_bpos);
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else
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*_M_wp &= ~_Bitset_base::_S_maskbit(_M_bpos);
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return *this;
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}
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// for b[i] = b[__j];
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reference& operator=(const reference& __j) {
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if ( (*(__j._M_wp) & _Bitset_base::_S_maskbit(__j._M_bpos)) )
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*_M_wp |= _Bitset_base::_S_maskbit(_M_bpos);
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else
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*_M_wp &= ~_Bitset_base::_S_maskbit(_M_bpos);
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return *this;
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}
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// flips the bit
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bool operator~() const { return (*(_M_wp) & _Bitset_base::_S_maskbit(_M_bpos)) == 0; }
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// for __x = b[i];
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operator bool() const { return (*(_M_wp) & _Bitset_base::_S_maskbit(_M_bpos)) != 0; }
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// for b[i].flip();
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reference& flip() {
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*_M_wp ^= _Bitset_base::_S_maskbit(_M_bpos);
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return *this;
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}
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};
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// 23.3.5.1 constructors:
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bitset() {}
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bitset(unsigned long __val) : _STLP_PRIV _Base_bitset<_Words>(__val) { _M_do_sanitize(); }
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#if defined (_STLP_MEMBER_TEMPLATES)
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template<class _CharT, class _Traits, class _Alloc>
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explicit bitset(const basic_string<_CharT,_Traits,_Alloc>& __s,
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size_t __pos = 0)
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: _STLP_PRIV _Base_bitset<_Words >() {
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if (__pos > __s.size())
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__stl_throw_out_of_range("bitset");
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_M_copy_from_string(__s, __pos,
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basic_string<_CharT, _Traits, _Alloc>::npos);
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}
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template<class _CharT, class _Traits, class _Alloc>
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bitset(const basic_string<_CharT, _Traits, _Alloc>& __s,
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size_t __pos,
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size_t __n)
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: _STLP_PRIV _Base_bitset<_Words >() {
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if (__pos > __s.size())
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__stl_throw_out_of_range("bitset");
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_M_copy_from_string(__s, __pos, __n);
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}
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#else /* _STLP_MEMBER_TEMPLATES */
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explicit bitset(const string& __s,
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size_t __pos = 0,
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size_t __n = (size_t)-1)
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: _STLP_PRIV _Base_bitset<_Words >() {
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if (__pos > __s.size())
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__stl_throw_out_of_range("bitset");
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_M_copy_from_string(__s, __pos, __n);
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}
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#endif /* _STLP_MEMBER_TEMPLATES */
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// 23.3.5.2 bitset operations:
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bitset<_Nb>& operator&=(const bitset<_Nb>& __rhs) {
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this->_M_do_and(__rhs);
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return *this;
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}
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bitset<_Nb>& operator|=(const bitset<_Nb>& __rhs) {
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this->_M_do_or(__rhs);
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return *this;
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}
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bitset<_Nb>& operator^=(const bitset<_Nb>& __rhs) {
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this->_M_do_xor(__rhs);
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return *this;
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}
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bitset<_Nb>& operator<<=(size_t __pos) {
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this->_M_do_left_shift(__pos);
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this->_M_do_sanitize();
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return *this;
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}
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bitset<_Nb>& operator>>=(size_t __pos) {
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this->_M_do_right_shift(__pos);
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this->_M_do_sanitize();
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return *this;
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}
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//
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// Extension:
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// Versions of single-bit set, reset, flip, test with no range checking.
|
|
//
|
|
|
|
bitset<_Nb>& _Unchecked_set(size_t __pos) {
|
|
this->_M_getword(__pos) |= _STLP_PRIV _Base_bitset<_Words > ::_S_maskbit(__pos);
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& _Unchecked_set(size_t __pos, int __val) {
|
|
if (__val)
|
|
this->_M_getword(__pos) |= this->_S_maskbit(__pos);
|
|
else
|
|
this->_M_getword(__pos) &= ~ this->_S_maskbit(__pos);
|
|
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& _Unchecked_reset(size_t __pos) {
|
|
this->_M_getword(__pos) &= ~ this->_S_maskbit(__pos);
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& _Unchecked_flip(size_t __pos) {
|
|
this->_M_getword(__pos) ^= this->_S_maskbit(__pos);
|
|
return *this;
|
|
}
|
|
|
|
bool _Unchecked_test(size_t __pos) const {
|
|
return (this->_M_getword(__pos) & this->_S_maskbit(__pos)) != __STATIC_CAST(_WordT,0);
|
|
}
|
|
|
|
// Set, reset, and flip.
|
|
|
|
bitset<_Nb>& set() {
|
|
this->_M_do_set();
|
|
this->_M_do_sanitize();
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& set(size_t __pos) {
|
|
if (__pos >= _Nb)
|
|
__stl_throw_out_of_range("bitset");
|
|
return _Unchecked_set(__pos);
|
|
}
|
|
|
|
bitset<_Nb>& set(size_t __pos, int __val) {
|
|
if (__pos >= _Nb)
|
|
__stl_throw_out_of_range("bitset");
|
|
return _Unchecked_set(__pos, __val);
|
|
}
|
|
|
|
bitset<_Nb>& reset() {
|
|
this->_M_do_reset();
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& reset(size_t __pos) {
|
|
if (__pos >= _Nb)
|
|
__stl_throw_out_of_range("bitset");
|
|
|
|
return _Unchecked_reset(__pos);
|
|
}
|
|
|
|
bitset<_Nb>& flip() {
|
|
this->_M_do_flip();
|
|
this->_M_do_sanitize();
|
|
return *this;
|
|
}
|
|
|
|
bitset<_Nb>& flip(size_t __pos) {
|
|
if (__pos >= _Nb)
|
|
__stl_throw_out_of_range("bitset");
|
|
|
|
return _Unchecked_flip(__pos);
|
|
}
|
|
|
|
bitset<_Nb> operator~() const {
|
|
return bitset<_Nb>(*this).flip();
|
|
}
|
|
|
|
// element access:
|
|
//for b[i];
|
|
reference operator[](size_t __pos) { return reference(*this,__pos); }
|
|
bool operator[](size_t __pos) const { return _Unchecked_test(__pos); }
|
|
|
|
unsigned long to_ulong() const { return this->_M_do_to_ulong(); }
|
|
|
|
#if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_NO_EXPLICIT_FUNCTION_TMPL_ARGS)
|
|
template <class _CharT, class _Traits, class _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc> to_string() const {
|
|
basic_string<_CharT, _Traits, _Alloc> __result;
|
|
_M_copy_to_string(__result);
|
|
return __result;
|
|
}
|
|
#else
|
|
string to_string() const {
|
|
string __result;
|
|
_M_copy_to_string(__result);
|
|
return __result;
|
|
}
|
|
#endif /* _STLP_EXPLICIT_FUNCTION_TMPL_ARGS */
|
|
|
|
size_t count() const { return this->_M_do_count(); }
|
|
|
|
size_t size() const { return _Nb; }
|
|
|
|
bool operator==(const bitset<_Nb>& __rhs) const {
|
|
return this->_M_is_equal(__rhs);
|
|
}
|
|
bool operator!=(const bitset<_Nb>& __rhs) const {
|
|
return !this->_M_is_equal(__rhs);
|
|
}
|
|
|
|
bool test(size_t __pos) const {
|
|
if (__pos >= _Nb)
|
|
__stl_throw_out_of_range("bitset");
|
|
|
|
return _Unchecked_test(__pos);
|
|
}
|
|
|
|
bool any() const { return this->_M_is_any(); }
|
|
bool none() const { return !this->_M_is_any(); }
|
|
|
|
bitset<_Nb> operator<<(size_t __pos) const {
|
|
bitset<_Nb> __result(*this);
|
|
__result <<= __pos ; return __result;
|
|
}
|
|
bitset<_Nb> operator>>(size_t __pos) const {
|
|
bitset<_Nb> __result(*this);
|
|
__result >>= __pos ; return __result;
|
|
}
|
|
|
|
#if !defined (_STLP_NO_EXTENSIONS)
|
|
//
|
|
// EXTENSIONS: bit-find operations. These operations are
|
|
// experimental, and are subject to change or removal in future
|
|
// versions.
|
|
//
|
|
|
|
// find the index of the first "on" bit
|
|
size_t _Find_first() const
|
|
{ return this->_M_do_find_first(_Nb); }
|
|
|
|
// find the index of the next "on" bit after prev
|
|
size_t _Find_next( size_t __prev ) const
|
|
{ return this->_M_do_find_next(__prev, _Nb); }
|
|
#endif
|
|
|
|
//
|
|
// Definitions of should-be non-inline member functions.
|
|
//
|
|
#if defined (_STLP_MEMBER_TEMPLATES)
|
|
template<class _CharT, class _Traits, class _Alloc>
|
|
void _M_copy_from_string(const basic_string<_CharT,_Traits,_Alloc>& __s,
|
|
size_t __pos, size_t __n) {
|
|
#else
|
|
void _M_copy_from_string(const string& __s,
|
|
size_t __pos, size_t __n) {
|
|
typedef typename string::traits_type _Traits;
|
|
#endif
|
|
reset();
|
|
size_t __tmp = _Nb;
|
|
const size_t __Nbits = (min) (__tmp, (min) (__n, __s.size() - __pos));
|
|
for ( size_t __i= 0; __i < __Nbits; ++__i) {
|
|
typename _Traits::int_type __k = _Traits::to_int_type(__s[__pos + __Nbits - __i - 1]);
|
|
// boris : widen() ?
|
|
if (__k == '1')
|
|
set(__i);
|
|
else if (__k != '0')
|
|
__stl_throw_invalid_argument("bitset");
|
|
}
|
|
}
|
|
|
|
#if defined (_STLP_MEMBER_TEMPLATES)
|
|
template <class _CharT, class _Traits, class _Alloc>
|
|
void _M_copy_to_string(basic_string<_CharT, _Traits, _Alloc>& __s) const
|
|
#else
|
|
void _M_copy_to_string(string& __s) const
|
|
#endif
|
|
{
|
|
__s.assign(_Nb, '0');
|
|
|
|
for (size_t __i = 0; __i < _Nb; ++__i) {
|
|
if (_Unchecked_test(__i))
|
|
__s[_Nb - 1 - __i] = '1';
|
|
}
|
|
}
|
|
|
|
#if !defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_NO_WCHAR_T)
|
|
void _M_copy_to_string(wstring& __s) const {
|
|
__s.assign(_Nb, '0');
|
|
|
|
for (size_t __i = 0; __i < _Nb; ++__i) {
|
|
if (_Unchecked_test(__i))
|
|
__s[_Nb - 1 - __i] = '1';
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined (_STLP_NON_TYPE_TMPL_PARAM_BUG)
|
|
bitset<_Nb> operator&(const bitset<_Nb>& __y) const {
|
|
bitset<_Nb> __result(*this);
|
|
__result &= __y;
|
|
return __result;
|
|
}
|
|
bitset<_Nb> operator|(const bitset<_Nb>& __y) const {
|
|
bitset<_Nb> __result(*this);
|
|
__result |= __y;
|
|
return __result;
|
|
}
|
|
bitset<_Nb> operator^(const bitset<_Nb>& __y) const {
|
|
bitset<_Nb> __result(*this);
|
|
__result ^= __y;
|
|
return __result;
|
|
}
|
|
#endif
|
|
};
|
|
|
|
// ------------------------------------------------------------
|
|
//
|
|
// 23.3.5.3 bitset operations:
|
|
//
|
|
#if ! defined (_STLP_NON_TYPE_TMPL_PARAM_BUG)
|
|
template <size_t _Nb>
|
|
inline bitset<_Nb> _STLP_CALL
|
|
operator&(const bitset<_Nb>& __x,
|
|
const bitset<_Nb>& __y) {
|
|
bitset<_Nb> __result(__x);
|
|
__result &= __y;
|
|
return __result;
|
|
}
|
|
|
|
|
|
template <size_t _Nb>
|
|
inline bitset<_Nb> _STLP_CALL
|
|
operator|(const bitset<_Nb>& __x,
|
|
const bitset<_Nb>& __y) {
|
|
bitset<_Nb> __result(__x);
|
|
__result |= __y;
|
|
return __result;
|
|
}
|
|
|
|
template <size_t _Nb>
|
|
inline bitset<_Nb> _STLP_CALL
|
|
operator^(const bitset<_Nb>& __x,
|
|
const bitset<_Nb>& __y) {
|
|
bitset<_Nb> __result(__x);
|
|
__result ^= __y;
|
|
return __result;
|
|
}
|
|
|
|
#if !defined (_STLP_USE_NO_IOSTREAMS)
|
|
|
|
_STLP_END_NAMESPACE
|
|
|
|
# if !(defined (_STLP_MSVC) && (_STLP_MSVC < 1300)) && \
|
|
!(defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x500))
|
|
|
|
#ifndef _STLP_INTERNAL_IOSFWD
|
|
# include <stl/_iosfwd.h>
|
|
#endif
|
|
|
|
_STLP_BEGIN_NAMESPACE
|
|
|
|
template <class _CharT, class _Traits, size_t _Nb>
|
|
basic_istream<_CharT, _Traits>& _STLP_CALL
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x);
|
|
|
|
template <class _CharT, class _Traits, size_t _Nb>
|
|
basic_ostream<_CharT, _Traits>& _STLP_CALL
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Nb>& __x);
|
|
|
|
# else
|
|
|
|
#ifndef _STLP_STRING_IO_H
|
|
# include <stl/_string_io.h> //includes _istream.h and _ostream.h
|
|
#endif
|
|
|
|
_STLP_BEGIN_NAMESPACE
|
|
|
|
template <size_t _Nb>
|
|
istream& _STLP_CALL
|
|
operator>>(istream& __is, bitset<_Nb>& __x) {
|
|
typedef typename string::traits_type _Traits;
|
|
string __tmp;
|
|
__tmp.reserve(_Nb);
|
|
|
|
// Skip whitespace
|
|
typename istream::sentry __sentry(__is);
|
|
if (__sentry) {
|
|
streambuf* __buf = __is.rdbuf();
|
|
for (size_t __i = 0; __i < _Nb; ++__i) {
|
|
static typename _Traits::int_type __eof = _Traits::eof();
|
|
|
|
typename _Traits::int_type __c1 = __buf->sbumpc();
|
|
if (_Traits::eq_int_type(__c1, __eof)) {
|
|
__is.setstate(ios_base::eofbit);
|
|
break;
|
|
}
|
|
else {
|
|
typename _Traits::char_type __c2 = _Traits::to_char_type(__c1);
|
|
char __c = __is.narrow(__c2, '*');
|
|
|
|
if (__c == '0' || __c == '1')
|
|
__tmp.push_back(__c);
|
|
else if (_Traits::eq_int_type(__buf->sputbackc(__c2), __eof)) {
|
|
__is.setstate(ios_base::failbit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (__tmp.empty())
|
|
__is.setstate(ios_base::failbit);
|
|
else
|
|
__x._M_copy_from_string(__tmp, __STATIC_CAST(size_t,0), _Nb);
|
|
}
|
|
|
|
return __is;
|
|
}
|
|
|
|
template <size_t _Nb>
|
|
ostream& _STLP_CALL
|
|
operator<<(ostream& __os, const bitset<_Nb>& __x) {
|
|
string __tmp;
|
|
__x._M_copy_to_string(__tmp);
|
|
return __os << __tmp;
|
|
}
|
|
|
|
# if !defined (_STLP_NO_WCHAR_T)
|
|
|
|
template <size_t _Nb>
|
|
wistream& _STLP_CALL
|
|
operator>>(wistream& __is, bitset<_Nb>& __x) {
|
|
typedef typename wstring::traits_type _Traits;
|
|
wstring __tmp;
|
|
__tmp.reserve(_Nb);
|
|
|
|
// Skip whitespace
|
|
typename wistream::sentry __sentry(__is);
|
|
if (__sentry) {
|
|
wstreambuf* __buf = __is.rdbuf();
|
|
for (size_t __i = 0; __i < _Nb; ++__i) {
|
|
static typename _Traits::int_type __eof = _Traits::eof();
|
|
|
|
typename _Traits::int_type __c1 = __buf->sbumpc();
|
|
if (_Traits::eq_int_type(__c1, __eof)) {
|
|
__is.setstate(ios_base::eofbit);
|
|
break;
|
|
}
|
|
else {
|
|
typename _Traits::char_type __c2 = _Traits::to_char_type(__c1);
|
|
char __c = __is.narrow(__c2, '*');
|
|
|
|
if (__c == '0' || __c == '1')
|
|
__tmp.push_back(__c);
|
|
else if (_Traits::eq_int_type(__buf->sputbackc(__c2), __eof)) {
|
|
__is.setstate(ios_base::failbit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (__tmp.empty())
|
|
__is.setstate(ios_base::failbit);
|
|
else
|
|
__x._M_copy_from_string(__tmp, __STATIC_CAST(size_t,0), _Nb);
|
|
}
|
|
|
|
return __is;
|
|
}
|
|
|
|
template <size_t _Nb>
|
|
wostream& _STLP_CALL
|
|
operator<<(wostream& __os, const bitset<_Nb>& __x) {
|
|
wstring __tmp;
|
|
__x._M_copy_to_string(__tmp);
|
|
return __os << __tmp;
|
|
}
|
|
|
|
# endif /* _STLP_NO_WCHAR_T */
|
|
# endif
|
|
#endif
|
|
|
|
#endif /* _STLP_NON_TYPE_TMPL_PARAM_BUG */
|
|
|
|
#undef bitset
|
|
|
|
_STLP_END_NAMESPACE
|
|
|
|
#undef __BITS_PER_WORD
|
|
#undef __BITSET_WORDS
|
|
|
|
#if !defined (_STLP_LINK_TIME_INSTANTIATION)
|
|
# include <stl/_bitset.c>
|
|
#endif
|
|
|
|
#endif /* _STLP_BITSET_H */
|
|
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
|