1 // Profiling bitset implementation -*- C++ -*-
3 // Copyright (C) 2009, 2010 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 /** @file profile/bitset
26 * This file is a GNU profile extension to the Standard C++ Library.
29 #ifndef _GLIBCXX_PROFILE_BITSET
30 #define _GLIBCXX_PROFILE_BITSET
34 namespace std _GLIBCXX_VISIBILITY(default)
38 /// Class std::bitset wrapper with performance instrumentation.
41 : public _GLIBCXX_STD_C::bitset<_Nb>
43 typedef _GLIBCXX_STD_C::bitset<_Nb> _Base;
48 : private _Base::reference
50 typedef typename _Base::reference _Base_ref;
55 reference(const _Base_ref& __base, bitset* __seq)
60 reference(const reference& __x)
67 *static_cast<_Base_ref*>(this) = __x;
72 operator=(const reference& __x)
74 *static_cast<_Base_ref*>(this) = __x;
81 return ~(*static_cast<const _Base_ref*>(this));
86 return *static_cast<const _Base_ref*>(this);
97 // 23.3.5.1 constructors:
98 _GLIBCXX_CONSTEXPR bitset() : _Base() { }
100 #ifdef __GXX_EXPERIMENTAL_CXX0X__
101 constexpr bitset(unsigned long long __val)
103 bitset(unsigned long __val)
107 template<typename _CharT, typename _Traits, typename _Alloc>
109 bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
110 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
112 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
113 __n = (std::basic_string<_CharT, _Traits, _Alloc>::npos))
114 : _Base(__str, __pos, __n) { }
116 // _GLIBCXX_RESOLVE_LIB_DEFECTS
117 // 396. what are characters zero and one.
118 template<class _CharT, class _Traits, class _Alloc>
119 bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
120 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
122 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
124 _CharT __zero, _CharT __one = _CharT('1'))
125 : _Base(__str, __pos, __n, __zero, __one) { }
127 bitset(const _Base& __x) : _Base(__x) { }
129 #ifdef __GXX_EXPERIMENTAL_CXX0X__
130 template<typename _CharT>
132 bitset(const _CharT* __str,
133 typename std::basic_string<_CharT>::size_type __n
134 = std::basic_string<_CharT>::npos,
135 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1'))
136 : _Base(__str, __n, __zero, __one) { }
139 // 23.3.5.2 bitset operations:
141 operator&=(const bitset<_Nb>& __rhs)
148 operator|=(const bitset<_Nb>& __rhs)
155 operator^=(const bitset<_Nb>& __rhs)
162 operator<<=(size_t __pos)
169 operator>>=(size_t __pos)
182 // _GLIBCXX_RESOLVE_LIB_DEFECTS
183 // 186. bitset::set() second parameter should be bool
185 set(size_t __pos, bool __val = true)
187 _Base::set(__pos, __val);
205 bitset<_Nb> operator~() const { return bitset(~_M_base()); }
222 // _GLIBCXX_RESOLVE_LIB_DEFECTS
223 // 11. Bitset minor problems
225 operator[](size_t __pos)
227 return reference(_M_base()[__pos], this);
230 // _GLIBCXX_RESOLVE_LIB_DEFECTS
231 // 11. Bitset minor problems
233 operator[](size_t __pos) const
235 return _M_base()[__pos];
238 using _Base::to_ulong;
239 #ifdef __GXX_EXPERIMENTAL_CXX0X__
240 using _Base::to_ullong;
243 template <typename _CharT, typename _Traits, typename _Alloc>
244 std::basic_string<_CharT, _Traits, _Alloc>
246 { return _M_base().template to_string<_CharT, _Traits, _Alloc>(); }
248 // _GLIBCXX_RESOLVE_LIB_DEFECTS
249 // 396. what are characters zero and one.
250 template<class _CharT, class _Traits, class _Alloc>
251 std::basic_string<_CharT, _Traits, _Alloc>
252 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
254 return _M_base().template
255 to_string<_CharT, _Traits, _Alloc>(__zero, __one);
258 // _GLIBCXX_RESOLVE_LIB_DEFECTS
259 // 434. bitset::to_string() hard to use.
260 template<typename _CharT, typename _Traits>
261 std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
263 { return to_string<_CharT, _Traits, std::allocator<_CharT> >(); }
265 // _GLIBCXX_RESOLVE_LIB_DEFECTS
266 // 853. to_string needs updating with zero and one.
267 template<class _CharT, class _Traits>
268 std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
269 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
270 { return to_string<_CharT, _Traits,
271 std::allocator<_CharT> >(__zero, __one); }
273 template<typename _CharT>
274 std::basic_string<_CharT, std::char_traits<_CharT>,
275 std::allocator<_CharT> >
278 return to_string<_CharT, std::char_traits<_CharT>,
279 std::allocator<_CharT> >();
282 template<class _CharT>
283 std::basic_string<_CharT, std::char_traits<_CharT>,
284 std::allocator<_CharT> >
285 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
287 return to_string<_CharT, std::char_traits<_CharT>,
288 std::allocator<_CharT> >(__zero, __one);
291 std::basic_string<char, std::char_traits<char>, std::allocator<char> >
294 return to_string<char,std::char_traits<char>,std::allocator<char> >();
297 std::basic_string<char, std::char_traits<char>, std::allocator<char> >
298 to_string(char __zero, char __one = '1') const
300 return to_string<char, std::char_traits<char>,
301 std::allocator<char> >(__zero, __one);
308 operator==(const bitset<_Nb>& __rhs) const
309 { return _M_base() == __rhs; }
312 operator!=(const bitset<_Nb>& __rhs) const
313 { return _M_base() != __rhs; }
321 operator<<(size_t __pos) const
322 { return bitset<_Nb>(_M_base() << __pos); }
325 operator>>(size_t __pos) const
326 { return bitset<_Nb>(_M_base() >> __pos); }
329 _M_base() { return *this; }
332 _M_base() const { return *this; }
337 operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
338 { return bitset<_Nb>(__x) &= __y; }
342 operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
343 { return bitset<_Nb>(__x) |= __y; }
347 operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
348 { return bitset<_Nb>(__x) ^= __y; }
350 template<typename _CharT, typename _Traits, size_t _Nb>
351 std::basic_istream<_CharT, _Traits>&
352 operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
353 { return __is >> __x._M_base(); }
355 template<typename _CharT, typename _Traits, size_t _Nb>
356 std::basic_ostream<_CharT, _Traits>&
357 operator<<(std::basic_ostream<_CharT, _Traits>& __os,
358 const bitset<_Nb>& __x)
359 { return __os << __x._M_base(); }
360 } // namespace __profile
362 #ifdef __GXX_EXPERIMENTAL_CXX0X__
364 /// std::hash specialization for bitset.
366 struct hash<__profile::bitset<_Nb>>
367 : public __hash_base<size_t, __profile::bitset<_Nb>>
370 operator()(const __profile::bitset<_Nb>& __b) const
371 { return std::hash<_GLIBCXX_STD_C::bitset<_Nb>>()(__b._M_base()); }