1 // The template and inlines for the -*- C++ -*- internal _Array helper class. 2 3 // Copyright (C) 1997-2018 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 bits/valarray_array.h 26 * This is an internal header file, included by other library headers. 27 * Do not attempt to use it directly. @headername{valarray} 28 */ 29 30 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr> 31 32 #ifndef _VALARRAY_ARRAY_H 33 #define _VALARRAY_ARRAY_H 1 34 35 #pragma GCC system_header 36 37 #include <bits/c++config.h> 38 #include <bits/cpp_type_traits.h> 39 #include <cstdlib> 40 #include <new> 41 42 namespace std _GLIBCXX_VISIBILITY(default) 43 { 44 _GLIBCXX_BEGIN_NAMESPACE_VERSION 45 46 // 47 // Helper functions on raw pointers 48 // 49 50 // We get memory by the old fashion way 51 inline void* 52 __valarray_get_memory(size_t __n) 53 { return operator new(__n); } 54 55 template<typename _Tp> 56 inline _Tp*__restrict__ 57 __valarray_get_storage(size_t __n) 58 { 59 return static_cast<_Tp*__restrict__> 60 (std::__valarray_get_memory(__n * sizeof(_Tp))); 61 } 62 63 // Return memory to the system 64 inline void 65 __valarray_release_memory(void* __p) 66 { operator delete(__p); } 67 68 // Turn a raw-memory into an array of _Tp filled with _Tp() 69 // This is required in 'valarray<T> v(n);' 70 template<typename _Tp, bool> 71 struct _Array_default_ctor 72 { 73 // Please note that this isn't exception safe. But 74 // valarrays aren't required to be exception safe. 75 inline static void 76 _S_do_it(_Tp* __b, _Tp* __e) 77 { 78 while (__b != __e) 79 new(__b++) _Tp(); 80 } 81 }; 82 83 template<typename _Tp> 84 struct _Array_default_ctor<_Tp, true> 85 { 86 // For fundamental types, it suffices to say 'memset()' 87 inline static void 88 _S_do_it(_Tp* __b, _Tp* __e) 89 { __builtin_memset(__b, 0, (__e - __b) * sizeof(_Tp)); } 90 }; 91 92 template<typename _Tp> 93 inline void 94 __valarray_default_construct(_Tp* __b, _Tp* __e) 95 { 96 _Array_default_ctor<_Tp, __is_scalar<_Tp>::__value>::_S_do_it(__b, __e); 97 } 98 99 // Turn a raw-memory into an array of _Tp filled with __t 100 // This is the required in valarray<T> v(n, t). Also 101 // used in valarray<>::resize(). 102 template<typename _Tp, bool> 103 struct _Array_init_ctor 104 { 105 // Please note that this isn't exception safe. But 106 // valarrays aren't required to be exception safe. 107 inline static void 108 _S_do_it(_Tp* __b, _Tp* __e, const _Tp __t) 109 { 110 while (__b != __e) 111 new(__b++) _Tp(__t); 112 } 113 }; 114 115 template<typename _Tp> 116 struct _Array_init_ctor<_Tp, true> 117 { 118 inline static void 119 _S_do_it(_Tp* __b, _Tp* __e, const _Tp __t) 120 { 121 while (__b != __e) 122 *__b++ = __t; 123 } 124 }; 125 126 template<typename _Tp> 127 inline void 128 __valarray_fill_construct(_Tp* __b, _Tp* __e, const _Tp __t) 129 { 130 _Array_init_ctor<_Tp, __is_trivial(_Tp)>::_S_do_it(__b, __e, __t); 131 } 132 133 // 134 // copy-construct raw array [__o, *) from plain array [__b, __e) 135 // We can't just say 'memcpy()' 136 // 137 template<typename _Tp, bool> 138 struct _Array_copy_ctor 139 { 140 // Please note that this isn't exception safe. But 141 // valarrays aren't required to be exception safe. 142 inline static void 143 _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o) 144 { 145 while (__b != __e) 146 new(__o++) _Tp(*__b++); 147 } 148 }; 149 150 template<typename _Tp> 151 struct _Array_copy_ctor<_Tp, true> 152 { 153 inline static void 154 _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o) 155 { __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); } 156 }; 157 158 template<typename _Tp> 159 inline void 160 __valarray_copy_construct(const _Tp* __b, const _Tp* __e, 161 _Tp* __restrict__ __o) 162 { 163 _Array_copy_ctor<_Tp, __is_trivial(_Tp)>::_S_do_it(__b, __e, __o); 164 } 165 166 // copy-construct raw array [__o, *) from strided array __a[<__n : __s>] 167 template<typename _Tp> 168 inline void 169 __valarray_copy_construct (const _Tp* __restrict__ __a, size_t __n, 170 size_t __s, _Tp* __restrict__ __o) 171 { 172 if (__is_trivial(_Tp)) 173 while (__n--) 174 { 175 *__o++ = *__a; 176 __a += __s; 177 } 178 else 179 while (__n--) 180 { 181 new(__o++) _Tp(*__a); 182 __a += __s; 183 } 184 } 185 186 // copy-construct raw array [__o, *) from indexed array __a[__i[<__n>]] 187 template<typename _Tp> 188 inline void 189 __valarray_copy_construct (const _Tp* __restrict__ __a, 190 const size_t* __restrict__ __i, 191 _Tp* __restrict__ __o, size_t __n) 192 { 193 if (__is_trivial(_Tp)) 194 while (__n--) 195 *__o++ = __a[*__i++]; 196 else 197 while (__n--) 198 new (__o++) _Tp(__a[*__i++]); 199 } 200 201 // Do the necessary cleanup when we're done with arrays. 202 template<typename _Tp> 203 inline void 204 __valarray_destroy_elements(_Tp* __b, _Tp* __e) 205 { 206 if (!__is_trivial(_Tp)) 207 while (__b != __e) 208 { 209 __b->~_Tp(); 210 ++__b; 211 } 212 } 213 214 // Fill a plain array __a[<__n>] with __t 215 template<typename _Tp> 216 inline void 217 __valarray_fill(_Tp* __restrict__ __a, size_t __n, const _Tp& __t) 218 { 219 while (__n--) 220 *__a++ = __t; 221 } 222 223 // fill strided array __a[<__n-1 : __s>] with __t 224 template<typename _Tp> 225 inline void 226 __valarray_fill(_Tp* __restrict__ __a, size_t __n, 227 size_t __s, const _Tp& __t) 228 { 229 for (size_t __i = 0; __i < __n; ++__i, __a += __s) 230 *__a = __t; 231 } 232 233 // fill indirect array __a[__i[<__n>]] with __i 234 template<typename _Tp> 235 inline void 236 __valarray_fill(_Tp* __restrict__ __a, const size_t* __restrict__ __i, 237 size_t __n, const _Tp& __t) 238 { 239 for (size_t __j = 0; __j < __n; ++__j, ++__i) 240 __a[*__i] = __t; 241 } 242 243 // copy plain array __a[<__n>] in __b[<__n>] 244 // For non-fundamental types, it is wrong to say 'memcpy()' 245 template<typename _Tp, bool> 246 struct _Array_copier 247 { 248 inline static void 249 _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b) 250 { 251 while(__n--) 252 *__b++ = *__a++; 253 } 254 }; 255 256 template<typename _Tp> 257 struct _Array_copier<_Tp, true> 258 { 259 inline static void 260 _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b) 261 { __builtin_memcpy(__b, __a, __n * sizeof (_Tp)); } 262 }; 263 264 // Copy a plain array __a[<__n>] into a play array __b[<>] 265 template<typename _Tp> 266 inline void 267 __valarray_copy(const _Tp* __restrict__ __a, size_t __n, 268 _Tp* __restrict__ __b) 269 { 270 _Array_copier<_Tp, __is_trivial(_Tp)>::_S_do_it(__a, __n, __b); 271 } 272 273 // Copy strided array __a[<__n : __s>] in plain __b[<__n>] 274 template<typename _Tp> 275 inline void 276 __valarray_copy(const _Tp* __restrict__ __a, size_t __n, size_t __s, 277 _Tp* __restrict__ __b) 278 { 279 for (size_t __i = 0; __i < __n; ++__i, ++__b, __a += __s) 280 *__b = *__a; 281 } 282 283 // Copy a plain array __a[<__n>] into a strided array __b[<__n : __s>] 284 template<typename _Tp> 285 inline void 286 __valarray_copy(const _Tp* __restrict__ __a, _Tp* __restrict__ __b, 287 size_t __n, size_t __s) 288 { 289 for (size_t __i = 0; __i < __n; ++__i, ++__a, __b += __s) 290 *__b = *__a; 291 } 292 293 // Copy strided array __src[<__n : __s1>] into another 294 // strided array __dst[< : __s2>]. Their sizes must match. 295 template<typename _Tp> 296 inline void 297 __valarray_copy(const _Tp* __restrict__ __src, size_t __n, size_t __s1, 298 _Tp* __restrict__ __dst, size_t __s2) 299 { 300 for (size_t __i = 0; __i < __n; ++__i) 301 __dst[__i * __s2] = __src[__i * __s1]; 302 } 303 304 // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>] 305 template<typename _Tp> 306 inline void 307 __valarray_copy(const _Tp* __restrict__ __a, 308 const size_t* __restrict__ __i, 309 _Tp* __restrict__ __b, size_t __n) 310 { 311 for (size_t __j = 0; __j < __n; ++__j, ++__b, ++__i) 312 *__b = __a[*__i]; 313 } 314 315 // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]] 316 template<typename _Tp> 317 inline void 318 __valarray_copy(const _Tp* __restrict__ __a, size_t __n, 319 _Tp* __restrict__ __b, const size_t* __restrict__ __i) 320 { 321 for (size_t __j = 0; __j < __n; ++__j, ++__a, ++__i) 322 __b[*__i] = *__a; 323 } 324 325 // Copy the __n first elements of an indexed array __src[<__i>] into 326 // another indexed array __dst[<__j>]. 327 template<typename _Tp> 328 inline void 329 __valarray_copy(const _Tp* __restrict__ __src, size_t __n, 330 const size_t* __restrict__ __i, 331 _Tp* __restrict__ __dst, const size_t* __restrict__ __j) 332 { 333 for (size_t __k = 0; __k < __n; ++__k) 334 __dst[*__j++] = __src[*__i++]; 335 } 336 337 // 338 // Compute the sum of elements in range [__f, __l) 339 // This is a naive algorithm. It suffers from cancelling. 340 // In the future try to specialize 341 // for _Tp = float, double, long double using a more accurate 342 // algorithm. 343 // 344 template<typename _Tp> 345 inline _Tp 346 __valarray_sum(const _Tp* __f, const _Tp* __l) 347 { 348 _Tp __r = _Tp(); 349 while (__f != __l) 350 __r += *__f++; 351 return __r; 352 } 353 354 // Compute the product of all elements in range [__f, __l) 355 template<typename _Tp> 356 inline _Tp 357 __valarray_product(const _Tp* __f, const _Tp* __l) 358 { 359 _Tp __r = _Tp(1); 360 while (__f != __l) 361 __r = __r * *__f++; 362 return __r; 363 } 364 365 // Compute the min/max of an array-expression 366 template<typename _Ta> 367 inline typename _Ta::value_type 368 __valarray_min(const _Ta& __a) 369 { 370 size_t __s = __a.size(); 371 typedef typename _Ta::value_type _Value_type; 372 _Value_type __r = __s == 0 ? _Value_type() : __a[0]; 373 for (size_t __i = 1; __i < __s; ++__i) 374 { 375 _Value_type __t = __a[__i]; 376 if (__t < __r) 377 __r = __t; 378 } 379 return __r; 380 } 381 382 template<typename _Ta> 383 inline typename _Ta::value_type 384 __valarray_max(const _Ta& __a) 385 { 386 size_t __s = __a.size(); 387 typedef typename _Ta::value_type _Value_type; 388 _Value_type __r = __s == 0 ? _Value_type() : __a[0]; 389 for (size_t __i = 1; __i < __s; ++__i) 390 { 391 _Value_type __t = __a[__i]; 392 if (__t > __r) 393 __r = __t; 394 } 395 return __r; 396 } 397 398 // 399 // Helper class _Array, first layer of valarray abstraction. 400 // All operations on valarray should be forwarded to this class 401 // whenever possible. -- gdr 402 // 403 404 template<typename _Tp> 405 struct _Array 406 { 407 explicit _Array(size_t); 408 explicit _Array(_Tp* const __restrict__); 409 explicit _Array(const valarray<_Tp>&); 410 _Array(const _Tp* __restrict__, size_t); 411 412 _Tp* begin() const; 413 414 _Tp* const __restrict__ _M_data; 415 }; 416 417 418 // Copy-construct plain array __b[<__n>] from indexed array __a[__i[<__n>]] 419 template<typename _Tp> 420 inline void 421 __valarray_copy_construct(_Array<_Tp> __a, _Array<size_t> __i, 422 _Array<_Tp> __b, size_t __n) 423 { std::__valarray_copy_construct(__a._M_data, __i._M_data, 424 __b._M_data, __n); } 425 426 // Copy-construct plain array __b[<__n>] from strided array __a[<__n : __s>] 427 template<typename _Tp> 428 inline void 429 __valarray_copy_construct(_Array<_Tp> __a, size_t __n, size_t __s, 430 _Array<_Tp> __b) 431 { std::__valarray_copy_construct(__a._M_data, __n, __s, __b._M_data); } 432 433 template<typename _Tp> 434 inline void 435 __valarray_fill (_Array<_Tp> __a, size_t __n, const _Tp& __t) 436 { std::__valarray_fill(__a._M_data, __n, __t); } 437 438 template<typename _Tp> 439 inline void 440 __valarray_fill(_Array<_Tp> __a, size_t __n, size_t __s, const _Tp& __t) 441 { std::__valarray_fill(__a._M_data, __n, __s, __t); } 442 443 template<typename _Tp> 444 inline void 445 __valarray_fill(_Array<_Tp> __a, _Array<size_t> __i, 446 size_t __n, const _Tp& __t) 447 { std::__valarray_fill(__a._M_data, __i._M_data, __n, __t); } 448 449 // Copy a plain array __a[<__n>] into a play array __b[<>] 450 template<typename _Tp> 451 inline void 452 __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b) 453 { std::__valarray_copy(__a._M_data, __n, __b._M_data); } 454 455 // Copy strided array __a[<__n : __s>] in plain __b[<__n>] 456 template<typename _Tp> 457 inline void 458 __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s, _Array<_Tp> __b) 459 { std::__valarray_copy(__a._M_data, __n, __s, __b._M_data); } 460 461 // Copy a plain array __a[<__n>] into a strided array __b[<__n : __s>] 462 template<typename _Tp> 463 inline void 464 __valarray_copy(_Array<_Tp> __a, _Array<_Tp> __b, size_t __n, size_t __s) 465 { __valarray_copy(__a._M_data, __b._M_data, __n, __s); } 466 467 // Copy strided array __src[<__n : __s1>] into another 468 // strided array __dst[< : __s2>]. Their sizes must match. 469 template<typename _Tp> 470 inline void 471 __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s1, 472 _Array<_Tp> __b, size_t __s2) 473 { std::__valarray_copy(__a._M_data, __n, __s1, __b._M_data, __s2); } 474 475 // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>] 476 template<typename _Tp> 477 inline void 478 __valarray_copy(_Array<_Tp> __a, _Array<size_t> __i, 479 _Array<_Tp> __b, size_t __n) 480 { std::__valarray_copy(__a._M_data, __i._M_data, __b._M_data, __n); } 481 482 // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]] 483 template<typename _Tp> 484 inline void 485 __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b, 486 _Array<size_t> __i) 487 { std::__valarray_copy(__a._M_data, __n, __b._M_data, __i._M_data); } 488 489 // Copy the __n first elements of an indexed array __src[<__i>] into 490 // another indexed array __dst[<__j>]. 491 template<typename _Tp> 492 inline void 493 __valarray_copy(_Array<_Tp> __src, size_t __n, _Array<size_t> __i, 494 _Array<_Tp> __dst, _Array<size_t> __j) 495 { 496 std::__valarray_copy(__src._M_data, __n, __i._M_data, 497 __dst._M_data, __j._M_data); 498 } 499 500 template<typename _Tp> 501 inline 502 _Array<_Tp>::_Array(size_t __n) 503 : _M_data(__valarray_get_storage<_Tp>(__n)) 504 { std::__valarray_default_construct(_M_data, _M_data + __n); } 505 506 template<typename _Tp> 507 inline 508 _Array<_Tp>::_Array(_Tp* const __restrict__ __p) 509 : _M_data (__p) {} 510 511 template<typename _Tp> 512 inline 513 _Array<_Tp>::_Array(const valarray<_Tp>& __v) 514 : _M_data (__v._M_data) {} 515 516 template<typename _Tp> 517 inline 518 _Array<_Tp>::_Array(const _Tp* __restrict__ __b, size_t __s) 519 : _M_data(__valarray_get_storage<_Tp>(__s)) 520 { std::__valarray_copy_construct(__b, __s, _M_data); } 521 522 template<typename _Tp> 523 inline _Tp* 524 _Array<_Tp>::begin () const 525 { return _M_data; } 526 527 #define _DEFINE_ARRAY_FUNCTION(_Op, _Name) \ 528 template<typename _Tp> \ 529 inline void \ 530 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, const _Tp& __t) \ 531 { \ 532 for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; ++__p) \ 533 *__p _Op##= __t; \ 534 } \ 535 \ 536 template<typename _Tp> \ 537 inline void \ 538 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b) \ 539 { \ 540 _Tp* __p = __a._M_data; \ 541 for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; ++__p, ++__q) \ 542 *__p _Op##= *__q; \ 543 } \ 544 \ 545 template<typename _Tp, class _Dom> \ 546 void \ 547 _Array_augmented_##_Name(_Array<_Tp> __a, \ 548 const _Expr<_Dom, _Tp>& __e, size_t __n) \ 549 { \ 550 _Tp* __p(__a._M_data); \ 551 for (size_t __i = 0; __i < __n; ++__i, ++__p) \ 552 *__p _Op##= __e[__i]; \ 553 } \ 554 \ 555 template<typename _Tp> \ 556 inline void \ 557 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, size_t __s, \ 558 _Array<_Tp> __b) \ 559 { \ 560 _Tp* __q(__b._M_data); \ 561 for (_Tp* __p = __a._M_data; __p < __a._M_data + __s * __n; \ 562 __p += __s, ++__q) \ 563 *__p _Op##= *__q; \ 564 } \ 565 \ 566 template<typename _Tp> \ 567 inline void \ 568 _Array_augmented_##_Name(_Array<_Tp> __a, _Array<_Tp> __b, \ 569 size_t __n, size_t __s) \ 570 { \ 571 _Tp* __q(__b._M_data); \ 572 for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; \ 573 ++__p, __q += __s) \ 574 *__p _Op##= *__q; \ 575 } \ 576 \ 577 template<typename _Tp, class _Dom> \ 578 void \ 579 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __s, \ 580 const _Expr<_Dom, _Tp>& __e, size_t __n) \ 581 { \ 582 _Tp* __p(__a._M_data); \ 583 for (size_t __i = 0; __i < __n; ++__i, __p += __s) \ 584 *__p _Op##= __e[__i]; \ 585 } \ 586 \ 587 template<typename _Tp> \ 588 inline void \ 589 _Array_augmented_##_Name(_Array<_Tp> __a, _Array<size_t> __i, \ 590 _Array<_Tp> __b, size_t __n) \ 591 { \ 592 _Tp* __q(__b._M_data); \ 593 for (size_t* __j = __i._M_data; __j < __i._M_data + __n; \ 594 ++__j, ++__q) \ 595 __a._M_data[*__j] _Op##= *__q; \ 596 } \ 597 \ 598 template<typename _Tp> \ 599 inline void \ 600 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, \ 601 _Array<_Tp> __b, _Array<size_t> __i) \ 602 { \ 603 _Tp* __p(__a._M_data); \ 604 for (size_t* __j = __i._M_data; __j<__i._M_data + __n; \ 605 ++__j, ++__p) \ 606 *__p _Op##= __b._M_data[*__j]; \ 607 } \ 608 \ 609 template<typename _Tp, class _Dom> \ 610 void \ 611 _Array_augmented_##_Name(_Array<_Tp> __a, _Array<size_t> __i, \ 612 const _Expr<_Dom, _Tp>& __e, size_t __n) \ 613 { \ 614 size_t* __j(__i._M_data); \ 615 for (size_t __k = 0; __k<__n; ++__k, ++__j) \ 616 __a._M_data[*__j] _Op##= __e[__k]; \ 617 } \ 618 \ 619 template<typename _Tp> \ 620 void \ 621 _Array_augmented_##_Name(_Array<_Tp> __a, _Array<bool> __m, \ 622 _Array<_Tp> __b, size_t __n) \ 623 { \ 624 bool* __ok(__m._M_data); \ 625 _Tp* __p(__a._M_data); \ 626 for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; \ 627 ++__q, ++__ok, ++__p) \ 628 { \ 629 while (! *__ok) \ 630 { \ 631 ++__ok; \ 632 ++__p; \ 633 } \ 634 *__p _Op##= *__q; \ 635 } \ 636 } \ 637 \ 638 template<typename _Tp> \ 639 void \ 640 _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, \ 641 _Array<_Tp> __b, _Array<bool> __m) \ 642 { \ 643 bool* __ok(__m._M_data); \ 644 _Tp* __q(__b._M_data); \ 645 for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; \ 646 ++__p, ++__ok, ++__q) \ 647 { \ 648 while (! *__ok) \ 649 { \ 650 ++__ok; \ 651 ++__q; \ 652 } \ 653 *__p _Op##= *__q; \ 654 } \ 655 } \ 656 \ 657 template<typename _Tp, class _Dom> \ 658 void \ 659 _Array_augmented_##_Name(_Array<_Tp> __a, _Array<bool> __m, \ 660 const _Expr<_Dom, _Tp>& __e, size_t __n) \ 661 { \ 662 bool* __ok(__m._M_data); \ 663 _Tp* __p(__a._M_data); \ 664 for (size_t __i = 0; __i < __n; ++__i, ++__ok, ++__p) \ 665 { \ 666 while (! *__ok) \ 667 { \ 668 ++__ok; \ 669 ++__p; \ 670 } \ 671 *__p _Op##= __e[__i]; \ 672 } \ 673 } 674 675 _DEFINE_ARRAY_FUNCTION(+, __plus) 676 _DEFINE_ARRAY_FUNCTION(-, __minus) 677 _DEFINE_ARRAY_FUNCTION(*, __multiplies) 678 _DEFINE_ARRAY_FUNCTION(/, __divides) 679 _DEFINE_ARRAY_FUNCTION(%, __modulus) 680 _DEFINE_ARRAY_FUNCTION(^, __bitwise_xor) 681 _DEFINE_ARRAY_FUNCTION(|, __bitwise_or) 682 _DEFINE_ARRAY_FUNCTION(&, __bitwise_and) 683 _DEFINE_ARRAY_FUNCTION(<<, __shift_left) 684 _DEFINE_ARRAY_FUNCTION(>>, __shift_right) 685 686 #undef _DEFINE_ARRAY_FUNCTION 687 688 _GLIBCXX_END_NAMESPACE_VERSION 689 } // namespace 690 691 # include <bits/valarray_array.tcc> 692 693 #endif /* _ARRAY_H */ 694