1 // Profiling bitset implementation -*- C++ -*-
3 // Copyright (C) 2009, 2010, 2011 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) _GLIBCXX_NOEXCEPT
60 reference(const reference& __x) _GLIBCXX_NOEXCEPT
65 operator=(bool __x) _GLIBCXX_NOEXCEPT
67 *static_cast<_Base_ref*>(this) = __x;
72 operator=(const reference& __x) _GLIBCXX_NOEXCEPT
74 *static_cast<_Base_ref*>(this) = __x;
79 operator~() const _GLIBCXX_NOEXCEPT
81 return ~(*static_cast<const _Base_ref*>(this));
84 operator bool() const _GLIBCXX_NOEXCEPT
86 return *static_cast<const _Base_ref*>(this);
90 flip() _GLIBCXX_NOEXCEPT
97 // 23.3.5.1 constructors:
98 _GLIBCXX_CONSTEXPR bitset() _GLIBCXX_NOEXCEPT
101 #ifdef __GXX_EXPERIMENTAL_CXX0X__
102 constexpr bitset(unsigned long long __val) noexcept
104 bitset(unsigned long __val)
108 template<typename _CharT, typename _Traits, typename _Alloc>
110 bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
111 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
113 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
114 __n = (std::basic_string<_CharT, _Traits, _Alloc>::npos))
115 : _Base(__str, __pos, __n) { }
117 // _GLIBCXX_RESOLVE_LIB_DEFECTS
118 // 396. what are characters zero and one.
119 template<class _CharT, class _Traits, class _Alloc>
120 bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str,
121 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
123 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type
125 _CharT __zero, _CharT __one = _CharT('1'))
126 : _Base(__str, __pos, __n, __zero, __one) { }
128 bitset(const _Base& __x) : _Base(__x) { }
130 #ifdef __GXX_EXPERIMENTAL_CXX0X__
131 template<typename _CharT>
133 bitset(const _CharT* __str,
134 typename std::basic_string<_CharT>::size_type __n
135 = std::basic_string<_CharT>::npos,
136 _CharT __zero = _CharT('0'), _CharT __one = _CharT('1'))
137 : _Base(__str, __n, __zero, __one) { }
140 // 23.3.5.2 bitset operations:
142 operator&=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT
149 operator|=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT
156 operator^=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT
163 operator<<=(size_t __pos) _GLIBCXX_NOEXCEPT
170 operator>>=(size_t __pos) _GLIBCXX_NOEXCEPT
177 set() _GLIBCXX_NOEXCEPT
183 // _GLIBCXX_RESOLVE_LIB_DEFECTS
184 // 186. bitset::set() second parameter should be bool
186 set(size_t __pos, bool __val = true)
188 _Base::set(__pos, __val);
193 reset() _GLIBCXX_NOEXCEPT
207 operator~() const _GLIBCXX_NOEXCEPT
208 { return bitset(~_M_base()); }
211 flip() _GLIBCXX_NOEXCEPT
225 // _GLIBCXX_RESOLVE_LIB_DEFECTS
226 // 11. Bitset minor problems
228 operator[](size_t __pos)
230 return reference(_M_base()[__pos], this);
233 // _GLIBCXX_RESOLVE_LIB_DEFECTS
234 // 11. Bitset minor problems
236 operator[](size_t __pos) const
238 return _M_base()[__pos];
241 using _Base::to_ulong;
242 #ifdef __GXX_EXPERIMENTAL_CXX0X__
243 using _Base::to_ullong;
246 template <typename _CharT, typename _Traits, typename _Alloc>
247 std::basic_string<_CharT, _Traits, _Alloc>
249 { return _M_base().template to_string<_CharT, _Traits, _Alloc>(); }
251 // _GLIBCXX_RESOLVE_LIB_DEFECTS
252 // 396. what are characters zero and one.
253 template<class _CharT, class _Traits, class _Alloc>
254 std::basic_string<_CharT, _Traits, _Alloc>
255 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
257 return _M_base().template
258 to_string<_CharT, _Traits, _Alloc>(__zero, __one);
261 // _GLIBCXX_RESOLVE_LIB_DEFECTS
262 // 434. bitset::to_string() hard to use.
263 template<typename _CharT, typename _Traits>
264 std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
266 { return to_string<_CharT, _Traits, std::allocator<_CharT> >(); }
268 // _GLIBCXX_RESOLVE_LIB_DEFECTS
269 // 853. to_string needs updating with zero and one.
270 template<class _CharT, class _Traits>
271 std::basic_string<_CharT, _Traits, std::allocator<_CharT> >
272 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
273 { return to_string<_CharT, _Traits,
274 std::allocator<_CharT> >(__zero, __one); }
276 template<typename _CharT>
277 std::basic_string<_CharT, std::char_traits<_CharT>,
278 std::allocator<_CharT> >
281 return to_string<_CharT, std::char_traits<_CharT>,
282 std::allocator<_CharT> >();
285 template<class _CharT>
286 std::basic_string<_CharT, std::char_traits<_CharT>,
287 std::allocator<_CharT> >
288 to_string(_CharT __zero, _CharT __one = _CharT('1')) const
290 return to_string<_CharT, std::char_traits<_CharT>,
291 std::allocator<_CharT> >(__zero, __one);
294 std::basic_string<char, std::char_traits<char>, std::allocator<char> >
297 return to_string<char,std::char_traits<char>,std::allocator<char> >();
300 std::basic_string<char, std::char_traits<char>, std::allocator<char> >
301 to_string(char __zero, char __one = '1') const
303 return to_string<char, std::char_traits<char>,
304 std::allocator<char> >(__zero, __one);
311 operator==(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT
312 { return _M_base() == __rhs; }
315 operator!=(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT
316 { return _M_base() != __rhs; }
324 operator<<(size_t __pos) const _GLIBCXX_NOEXCEPT
325 { return bitset<_Nb>(_M_base() << __pos); }
328 operator>>(size_t __pos) const _GLIBCXX_NOEXCEPT
329 { return bitset<_Nb>(_M_base() >> __pos); }
332 _M_base() _GLIBCXX_NOEXCEPT
336 _M_base() const _GLIBCXX_NOEXCEPT
342 operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT
343 { return bitset<_Nb>(__x) &= __y; }
347 operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT
348 { return bitset<_Nb>(__x) |= __y; }
352 operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT
353 { return bitset<_Nb>(__x) ^= __y; }
355 template<typename _CharT, typename _Traits, size_t _Nb>
356 std::basic_istream<_CharT, _Traits>&
357 operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
358 { return __is >> __x._M_base(); }
360 template<typename _CharT, typename _Traits, size_t _Nb>
361 std::basic_ostream<_CharT, _Traits>&
362 operator<<(std::basic_ostream<_CharT, _Traits>& __os,
363 const bitset<_Nb>& __x)
364 { return __os << __x._M_base(); }
365 } // namespace __profile
367 #ifdef __GXX_EXPERIMENTAL_CXX0X__
369 /// std::hash specialization for bitset.
371 struct hash<__profile::bitset<_Nb>>
372 : public __hash_base<size_t, __profile::bitset<_Nb>>
375 operator()(const __profile::bitset<_Nb>& __b) const noexcept
376 { return std::hash<_GLIBCXX_STD_C::bitset<_Nb>>()(__b._M_base()); }