1 // Profiling bitset implementation -*- C++ -*- 2 3 // Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc. 4 // 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) 9 // any later version. 10 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. 15 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. 19 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/>. 24 25 /** @file profile/bitset 26 * This file is a GNU profile extension to the Standard C++ Library. 27 */ 28 29 #ifndef _GLIBCXX_PROFILE_BITSET 30 #define _GLIBCXX_PROFILE_BITSET 31 32 #include <bitset> 33 34 namespace std _GLIBCXX_VISIBILITY(default) 35 { 36 namespace __profile 37 { 38 /// Class std::bitset wrapper with performance instrumentation. 39 template<size_t _Nb> 40 class bitset 41 : public _GLIBCXX_STD_C::bitset<_Nb> 42 { 43 typedef _GLIBCXX_STD_C::bitset<_Nb> _Base; 44 45 public: 46 // bit reference: 47 class reference 48 : private _Base::reference 49 { 50 typedef typename _Base::reference _Base_ref; 51 52 friend class bitset; 53 reference(); 54 55 reference(const _Base_ref& __base, bitset* __seq) _GLIBCXX_NOEXCEPT 56 : _Base_ref(__base) 57 { } 58 59 public: 60 reference(const reference& __x) _GLIBCXX_NOEXCEPT 61 : _Base_ref(__x) 62 { } 63 64 reference& 65 operator=(bool __x) _GLIBCXX_NOEXCEPT 66 { 67 *static_cast<_Base_ref*>(this) = __x; 68 return *this; 69 } 70 71 reference& 72 operator=(const reference& __x) _GLIBCXX_NOEXCEPT 73 { 74 *static_cast<_Base_ref*>(this) = __x; 75 return *this; 76 } 77 78 bool 79 operator~() const _GLIBCXX_NOEXCEPT 80 { 81 return ~(*static_cast<const _Base_ref*>(this)); 82 } 83 84 operator bool() const _GLIBCXX_NOEXCEPT 85 { 86 return *static_cast<const _Base_ref*>(this); 87 } 88 89 reference& 90 flip() _GLIBCXX_NOEXCEPT 91 { 92 _Base_ref::flip(); 93 return *this; 94 } 95 }; 96 97 // 23.3.5.1 constructors: 98 _GLIBCXX_CONSTEXPR bitset() _GLIBCXX_NOEXCEPT 99 : _Base() { } 100 101 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 102 constexpr bitset(unsigned long long __val) noexcept 103 #else 104 bitset(unsigned long __val) 105 #endif 106 : _Base(__val) { } 107 108 template<typename _CharT, typename _Traits, typename _Alloc> 109 explicit 110 bitset(const std::basic_string<_CharT, _Traits, _Alloc>& __str, 111 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type 112 __pos = 0, 113 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type 114 __n = (std::basic_string<_CharT, _Traits, _Alloc>::npos)) 115 : _Base(__str, __pos, __n) { } 116 117 // _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 122 __pos, 123 typename std::basic_string<_CharT, _Traits, _Alloc>::size_type 124 __n, 125 _CharT __zero, _CharT __one = _CharT('1')) 126 : _Base(__str, __pos, __n, __zero, __one) { } 127 128 bitset(const _Base& __x) : _Base(__x) { } 129 130 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 131 template<typename _CharT> 132 explicit 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) { } 138 #endif 139 140 // 23.3.5.2 bitset operations: 141 bitset<_Nb>& 142 operator&=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT 143 { 144 _M_base() &= __rhs; 145 return *this; 146 } 147 148 bitset<_Nb>& 149 operator|=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT 150 { 151 _M_base() |= __rhs; 152 return *this; 153 } 154 155 bitset<_Nb>& 156 operator^=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT 157 { 158 _M_base() ^= __rhs; 159 return *this; 160 } 161 162 bitset<_Nb>& 163 operator<<=(size_t __pos) _GLIBCXX_NOEXCEPT 164 { 165 _M_base() <<= __pos; 166 return *this; 167 } 168 169 bitset<_Nb>& 170 operator>>=(size_t __pos) _GLIBCXX_NOEXCEPT 171 { 172 _M_base() >>= __pos; 173 return *this; 174 } 175 176 bitset<_Nb>& 177 set() _GLIBCXX_NOEXCEPT 178 { 179 _Base::set(); 180 return *this; 181 } 182 183 // _GLIBCXX_RESOLVE_LIB_DEFECTS 184 // 186. bitset::set() second parameter should be bool 185 bitset<_Nb>& 186 set(size_t __pos, bool __val = true) 187 { 188 _Base::set(__pos, __val); 189 return *this; 190 } 191 192 bitset<_Nb>& 193 reset() _GLIBCXX_NOEXCEPT 194 { 195 _Base::reset(); 196 return *this; 197 } 198 199 bitset<_Nb>& 200 reset(size_t __pos) 201 { 202 _Base::reset(__pos); 203 return *this; 204 } 205 206 bitset<_Nb> 207 operator~() const _GLIBCXX_NOEXCEPT 208 { return bitset(~_M_base()); } 209 210 bitset<_Nb>& 211 flip() _GLIBCXX_NOEXCEPT 212 { 213 _Base::flip(); 214 return *this; 215 } 216 217 bitset<_Nb>& 218 flip(size_t __pos) 219 { 220 _Base::flip(__pos); 221 return *this; 222 } 223 224 // element access: 225 // _GLIBCXX_RESOLVE_LIB_DEFECTS 226 // 11. Bitset minor problems 227 reference 228 operator[](size_t __pos) 229 { 230 return reference(_M_base()[__pos], this); 231 } 232 233 // _GLIBCXX_RESOLVE_LIB_DEFECTS 234 // 11. Bitset minor problems 235 _GLIBCXX_CONSTEXPR bool 236 operator[](size_t __pos) const 237 { 238 return _Base::operator[](__pos); 239 } 240 241 using _Base::to_ulong; 242 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 243 using _Base::to_ullong; 244 #endif 245 246 template <typename _CharT, typename _Traits, typename _Alloc> 247 std::basic_string<_CharT, _Traits, _Alloc> 248 to_string() const 249 { return _M_base().template to_string<_CharT, _Traits, _Alloc>(); } 250 251 // _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 256 { 257 return _M_base().template 258 to_string<_CharT, _Traits, _Alloc>(__zero, __one); 259 } 260 261 // _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> > 265 to_string() const 266 { return to_string<_CharT, _Traits, std::allocator<_CharT> >(); } 267 268 // _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); } 275 276 template<typename _CharT> 277 std::basic_string<_CharT, std::char_traits<_CharT>, 278 std::allocator<_CharT> > 279 to_string() const 280 { 281 return to_string<_CharT, std::char_traits<_CharT>, 282 std::allocator<_CharT> >(); 283 } 284 285 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 289 { 290 return to_string<_CharT, std::char_traits<_CharT>, 291 std::allocator<_CharT> >(__zero, __one); 292 } 293 294 std::basic_string<char, std::char_traits<char>, std::allocator<char> > 295 to_string() const 296 { 297 return to_string<char,std::char_traits<char>,std::allocator<char> >(); 298 } 299 300 std::basic_string<char, std::char_traits<char>, std::allocator<char> > 301 to_string(char __zero, char __one = '1') const 302 { 303 return to_string<char, std::char_traits<char>, 304 std::allocator<char> >(__zero, __one); 305 } 306 307 using _Base::count; 308 using _Base::size; 309 310 bool 311 operator==(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT 312 { return _M_base() == __rhs; } 313 314 bool 315 operator!=(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT 316 { return _M_base() != __rhs; } 317 318 using _Base::test; 319 using _Base::all; 320 using _Base::any; 321 using _Base::none; 322 323 bitset<_Nb> 324 operator<<(size_t __pos) const _GLIBCXX_NOEXCEPT 325 { return bitset<_Nb>(_M_base() << __pos); } 326 327 bitset<_Nb> 328 operator>>(size_t __pos) const _GLIBCXX_NOEXCEPT 329 { return bitset<_Nb>(_M_base() >> __pos); } 330 331 _Base& 332 _M_base() _GLIBCXX_NOEXCEPT 333 { return *this; } 334 335 const _Base& 336 _M_base() const _GLIBCXX_NOEXCEPT 337 { return *this; } 338 }; 339 340 template<size_t _Nb> 341 bitset<_Nb> 342 operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT 343 { return bitset<_Nb>(__x) &= __y; } 344 345 template<size_t _Nb> 346 bitset<_Nb> 347 operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT 348 { return bitset<_Nb>(__x) |= __y; } 349 350 template<size_t _Nb> 351 bitset<_Nb> 352 operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT 353 { return bitset<_Nb>(__x) ^= __y; } 354 355 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(); } 359 360 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 366 367 #ifdef __GXX_EXPERIMENTAL_CXX0X__ 368 // DR 1182. 369 /// std::hash specialization for bitset. 370 template<size_t _Nb> 371 struct hash<__profile::bitset<_Nb>> 372 : public __hash_base<size_t, __profile::bitset<_Nb>> 373 { 374 size_t 375 operator()(const __profile::bitset<_Nb>& __b) const noexcept 376 { return std::hash<_GLIBCXX_STD_C::bitset<_Nb>>()(__b._M_base()); } 377 }; 378 #endif 379 380 } // namespace std 381 382 #endif 383
