1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_OSTREAM 11#define _LIBCPP_OSTREAM 12 13/* 14 ostream synopsis 15 16template <class charT, class traits = char_traits<charT> > 17class basic_ostream 18 : virtual public basic_ios<charT,traits> 19{ 20public: 21 // types (inherited from basic_ios (27.5.4)): 22 typedef charT char_type; 23 typedef traits traits_type; 24 typedef typename traits_type::int_type int_type; 25 typedef typename traits_type::pos_type pos_type; 26 typedef typename traits_type::off_type off_type; 27 28 // 27.7.2.2 Constructor/destructor: 29 explicit basic_ostream(basic_streambuf<char_type,traits>* sb); 30 basic_ostream(basic_ostream&& rhs); 31 virtual ~basic_ostream(); 32 33 // 27.7.2.3 Assign/swap 34 basic_ostream& operator=(const basic_ostream& rhs) = delete; // C++14 35 basic_ostream& operator=(basic_ostream&& rhs); 36 void swap(basic_ostream& rhs); 37 38 // 27.7.2.4 Prefix/suffix: 39 class sentry; 40 41 // 27.7.2.6 Formatted output: 42 basic_ostream& operator<<(basic_ostream& (*pf)(basic_ostream&)); 43 basic_ostream& operator<<(basic_ios<charT, traits>& (*pf)(basic_ios<charT,traits>&)); 44 basic_ostream& operator<<(ios_base& (*pf)(ios_base&)); 45 basic_ostream& operator<<(bool n); 46 basic_ostream& operator<<(short n); 47 basic_ostream& operator<<(unsigned short n); 48 basic_ostream& operator<<(int n); 49 basic_ostream& operator<<(unsigned int n); 50 basic_ostream& operator<<(long n); 51 basic_ostream& operator<<(unsigned long n); 52 basic_ostream& operator<<(long long n); 53 basic_ostream& operator<<(unsigned long long n); 54 basic_ostream& operator<<(float f); 55 basic_ostream& operator<<(double f); 56 basic_ostream& operator<<(long double f); 57 basic_ostream& operator<<(const void* p); 58 basic_ostream& operator<<(const volatile void* val); // C++23 59 basic_ostream& operator<<(basic_streambuf<char_type,traits>* sb); 60 basic_ostream& operator<<(nullptr_t); 61 62 // 27.7.2.7 Unformatted output: 63 basic_ostream& put(char_type c); 64 basic_ostream& write(const char_type* s, streamsize n); 65 basic_ostream& flush(); 66 67 // 27.7.2.5 seeks: 68 pos_type tellp(); 69 basic_ostream& seekp(pos_type); 70 basic_ostream& seekp(off_type, ios_base::seekdir); 71protected: 72 basic_ostream(const basic_ostream& rhs) = delete; 73 basic_ostream(basic_ostream&& rhs); 74 // 27.7.3.3 Assign/swap 75 basic_ostream& operator=(basic_ostream& rhs) = delete; 76 basic_ostream& operator=(const basic_ostream&& rhs); 77 void swap(basic_ostream& rhs); 78}; 79 80// 27.7.2.6.4 character inserters 81 82template<class charT, class traits> 83 basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>&, charT); 84 85template<class charT, class traits> 86 basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>&, char); 87 88template<class traits> 89 basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, char); 90 91// signed and unsigned 92 93template<class traits> 94 basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, signed char); 95 96template<class traits> 97 basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, unsigned char); 98 99// NTBS 100template<class charT, class traits> 101 basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>&, const charT*); 102 103template<class charT, class traits> 104 basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>&, const char*); 105 106template<class traits> 107 basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, const char*); 108 109// signed and unsigned 110template<class traits> 111basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, const signed char*); 112 113template<class traits> 114 basic_ostream<char,traits>& operator<<(basic_ostream<char,traits>&, const unsigned char*); 115 116// swap: 117template <class charT, class traits> 118 void swap(basic_ostream<charT, traits>& x, basic_ostream<charT, traits>& y); 119 120template <class charT, class traits> 121 basic_ostream<charT,traits>& endl(basic_ostream<charT,traits>& os); 122 123template <class charT, class traits> 124 basic_ostream<charT,traits>& ends(basic_ostream<charT,traits>& os); 125 126template <class charT, class traits> 127 basic_ostream<charT,traits>& flush(basic_ostream<charT,traits>& os); 128 129// rvalue stream insertion 130template <class Stream, class T> 131 Stream&& operator<<(Stream&& os, const T& x); 132 133} // std 134 135*/ 136 137#include <__config> 138#include <bitset> 139#include <ios> 140#include <iterator> 141#include <locale> 142#include <streambuf> 143#include <version> 144 145#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 146#pragma GCC system_header 147#endif 148 149_LIBCPP_BEGIN_NAMESPACE_STD 150 151template <class _CharT, class _Traits> 152class _LIBCPP_TEMPLATE_VIS basic_ostream 153 : virtual public basic_ios<_CharT, _Traits> 154{ 155public: 156 // types (inherited from basic_ios (27.5.4)): 157 typedef _CharT char_type; 158 typedef _Traits traits_type; 159 typedef typename traits_type::int_type int_type; 160 typedef typename traits_type::pos_type pos_type; 161 typedef typename traits_type::off_type off_type; 162 163 // 27.7.2.2 Constructor/destructor: 164 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 165 explicit basic_ostream(basic_streambuf<char_type, traits_type>* __sb) 166 { this->init(__sb); } 167 virtual ~basic_ostream(); 168protected: 169 inline _LIBCPP_INLINE_VISIBILITY 170 basic_ostream(basic_ostream&& __rhs); 171 172 // 27.7.2.3 Assign/swap 173 inline _LIBCPP_INLINE_VISIBILITY 174 basic_ostream& operator=(basic_ostream&& __rhs); 175 176 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 177 void swap(basic_ostream& __rhs) 178 { basic_ios<char_type, traits_type>::swap(__rhs); } 179 180 basic_ostream (const basic_ostream& __rhs) = delete; 181 basic_ostream& operator=(const basic_ostream& __rhs) = delete; 182 183public: 184 // 27.7.2.4 Prefix/suffix: 185 class _LIBCPP_TEMPLATE_VIS sentry; 186 187 // 27.7.2.6 Formatted output: 188 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 189 basic_ostream& operator<<(basic_ostream& (*__pf)(basic_ostream&)) 190 { return __pf(*this); } 191 192 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 193 basic_ostream& operator<<(basic_ios<char_type, traits_type>& 194 (*__pf)(basic_ios<char_type,traits_type>&)) 195 { __pf(*this); return *this; } 196 197 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 198 basic_ostream& operator<<(ios_base& (*__pf)(ios_base&)) 199 { __pf(*this); return *this; } 200 201 basic_ostream& operator<<(bool __n); 202 basic_ostream& operator<<(short __n); 203 basic_ostream& operator<<(unsigned short __n); 204 basic_ostream& operator<<(int __n); 205 basic_ostream& operator<<(unsigned int __n); 206 basic_ostream& operator<<(long __n); 207 basic_ostream& operator<<(unsigned long __n); 208 basic_ostream& operator<<(long long __n); 209 basic_ostream& operator<<(unsigned long long __n); 210 basic_ostream& operator<<(float __f); 211 basic_ostream& operator<<(double __f); 212 basic_ostream& operator<<(long double __f); 213 basic_ostream& operator<<(const void* __p); 214 215#if _LIBCPP_STD_VER > 20 216 _LIBCPP_HIDE_FROM_ABI 217 basic_ostream& operator<<(const volatile void* __p) { 218 return operator<<(const_cast<const void*>(__p)); 219 } 220#endif 221 222 basic_ostream& operator<<(basic_streambuf<char_type, traits_type>* __sb); 223 224 _LIBCPP_INLINE_VISIBILITY 225 basic_ostream& operator<<(nullptr_t) 226 { return *this << "nullptr"; } 227 228 // 27.7.2.7 Unformatted output: 229 basic_ostream& put(char_type __c); 230 basic_ostream& write(const char_type* __s, streamsize __n); 231 basic_ostream& flush(); 232 233 // 27.7.2.5 seeks: 234 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 235 pos_type tellp(); 236 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 237 basic_ostream& seekp(pos_type __pos); 238 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 239 basic_ostream& seekp(off_type __off, ios_base::seekdir __dir); 240 241protected: 242 _LIBCPP_INLINE_VISIBILITY 243 basic_ostream() {} // extension, intentially does not initialize 244}; 245 246template <class _CharT, class _Traits> 247class _LIBCPP_TEMPLATE_VIS basic_ostream<_CharT, _Traits>::sentry 248{ 249 bool __ok_; 250 basic_ostream<_CharT, _Traits>& __os_; 251 252public: 253 explicit sentry(basic_ostream<_CharT, _Traits>& __os); 254 ~sentry(); 255 sentry(const sentry&) = delete; 256 sentry& operator=(const sentry&) = delete; 257 258 _LIBCPP_INLINE_VISIBILITY 259 explicit operator bool() const {return __ok_;} 260}; 261 262template <class _CharT, class _Traits> 263basic_ostream<_CharT, _Traits>::sentry::sentry(basic_ostream<_CharT, _Traits>& __os) 264 : __ok_(false), 265 __os_(__os) 266{ 267 if (__os.good()) 268 { 269 if (__os.tie()) 270 __os.tie()->flush(); 271 __ok_ = true; 272 } 273} 274 275template <class _CharT, class _Traits> 276basic_ostream<_CharT, _Traits>::sentry::~sentry() 277{ 278 if (__os_.rdbuf() && __os_.good() && (__os_.flags() & ios_base::unitbuf) 279 && !uncaught_exception()) 280 { 281#ifndef _LIBCPP_NO_EXCEPTIONS 282 try 283 { 284#endif // _LIBCPP_NO_EXCEPTIONS 285 if (__os_.rdbuf()->pubsync() == -1) 286 __os_.setstate(ios_base::badbit); 287#ifndef _LIBCPP_NO_EXCEPTIONS 288 } 289 catch (...) 290 { 291 } 292#endif // _LIBCPP_NO_EXCEPTIONS 293 } 294} 295 296template <class _CharT, class _Traits> 297basic_ostream<_CharT, _Traits>::basic_ostream(basic_ostream&& __rhs) 298{ 299 this->move(__rhs); 300} 301 302template <class _CharT, class _Traits> 303basic_ostream<_CharT, _Traits>& 304basic_ostream<_CharT, _Traits>::operator=(basic_ostream&& __rhs) 305{ 306 swap(__rhs); 307 return *this; 308} 309 310template <class _CharT, class _Traits> 311basic_ostream<_CharT, _Traits>::~basic_ostream() 312{ 313} 314 315template <class _CharT, class _Traits> 316basic_ostream<_CharT, _Traits>& 317basic_ostream<_CharT, _Traits>::operator<<(basic_streambuf<char_type, traits_type>* __sb) 318{ 319#ifndef _LIBCPP_NO_EXCEPTIONS 320 try 321 { 322#endif // _LIBCPP_NO_EXCEPTIONS 323 sentry __s(*this); 324 if (__s) 325 { 326 if (__sb) 327 { 328#ifndef _LIBCPP_NO_EXCEPTIONS 329 try 330 { 331#endif // _LIBCPP_NO_EXCEPTIONS 332 typedef istreambuf_iterator<_CharT, _Traits> _Ip; 333 typedef ostreambuf_iterator<_CharT, _Traits> _Op; 334 _Ip __i(__sb); 335 _Ip __eof; 336 _Op __o(*this); 337 size_t __c = 0; 338 for (; __i != __eof; ++__i, ++__o, ++__c) 339 { 340 *__o = *__i; 341 if (__o.failed()) 342 break; 343 } 344 if (__c == 0) 345 this->setstate(ios_base::failbit); 346#ifndef _LIBCPP_NO_EXCEPTIONS 347 } 348 catch (...) 349 { 350 this->__set_failbit_and_consider_rethrow(); 351 } 352#endif // _LIBCPP_NO_EXCEPTIONS 353 } 354 else 355 this->setstate(ios_base::badbit); 356 } 357#ifndef _LIBCPP_NO_EXCEPTIONS 358 } 359 catch (...) 360 { 361 this->__set_badbit_and_consider_rethrow(); 362 } 363#endif // _LIBCPP_NO_EXCEPTIONS 364 return *this; 365} 366 367template <class _CharT, class _Traits> 368basic_ostream<_CharT, _Traits>& 369basic_ostream<_CharT, _Traits>::operator<<(bool __n) 370{ 371#ifndef _LIBCPP_NO_EXCEPTIONS 372 try 373 { 374#endif // _LIBCPP_NO_EXCEPTIONS 375 sentry __s(*this); 376 if (__s) 377 { 378 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 379 const _Fp& __f = use_facet<_Fp>(this->getloc()); 380 if (__f.put(*this, *this, this->fill(), __n).failed()) 381 this->setstate(ios_base::badbit | ios_base::failbit); 382 } 383#ifndef _LIBCPP_NO_EXCEPTIONS 384 } 385 catch (...) 386 { 387 this->__set_badbit_and_consider_rethrow(); 388 } 389#endif // _LIBCPP_NO_EXCEPTIONS 390 return *this; 391} 392 393template <class _CharT, class _Traits> 394basic_ostream<_CharT, _Traits>& 395basic_ostream<_CharT, _Traits>::operator<<(short __n) 396{ 397#ifndef _LIBCPP_NO_EXCEPTIONS 398 try 399 { 400#endif // _LIBCPP_NO_EXCEPTIONS 401 sentry __s(*this); 402 if (__s) 403 { 404 ios_base::fmtflags __flags = ios_base::flags() & ios_base::basefield; 405 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 406 const _Fp& __f = use_facet<_Fp>(this->getloc()); 407 if (__f.put(*this, *this, this->fill(), 408 __flags == ios_base::oct || __flags == ios_base::hex ? 409 static_cast<long>(static_cast<unsigned short>(__n)) : 410 static_cast<long>(__n)).failed()) 411 this->setstate(ios_base::badbit | ios_base::failbit); 412 } 413#ifndef _LIBCPP_NO_EXCEPTIONS 414 } 415 catch (...) 416 { 417 this->__set_badbit_and_consider_rethrow(); 418 } 419#endif // _LIBCPP_NO_EXCEPTIONS 420 return *this; 421} 422 423template <class _CharT, class _Traits> 424basic_ostream<_CharT, _Traits>& 425basic_ostream<_CharT, _Traits>::operator<<(unsigned short __n) 426{ 427#ifndef _LIBCPP_NO_EXCEPTIONS 428 try 429 { 430#endif // _LIBCPP_NO_EXCEPTIONS 431 sentry __s(*this); 432 if (__s) 433 { 434 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 435 const _Fp& __f = use_facet<_Fp>(this->getloc()); 436 if (__f.put(*this, *this, this->fill(), static_cast<unsigned long>(__n)).failed()) 437 this->setstate(ios_base::badbit | ios_base::failbit); 438 } 439#ifndef _LIBCPP_NO_EXCEPTIONS 440 } 441 catch (...) 442 { 443 this->__set_badbit_and_consider_rethrow(); 444 } 445#endif // _LIBCPP_NO_EXCEPTIONS 446 return *this; 447} 448 449template <class _CharT, class _Traits> 450basic_ostream<_CharT, _Traits>& 451basic_ostream<_CharT, _Traits>::operator<<(int __n) 452{ 453#ifndef _LIBCPP_NO_EXCEPTIONS 454 try 455 { 456#endif // _LIBCPP_NO_EXCEPTIONS 457 sentry __s(*this); 458 if (__s) 459 { 460 ios_base::fmtflags __flags = ios_base::flags() & ios_base::basefield; 461 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 462 const _Fp& __f = use_facet<_Fp>(this->getloc()); 463 if (__f.put(*this, *this, this->fill(), 464 __flags == ios_base::oct || __flags == ios_base::hex ? 465 static_cast<long>(static_cast<unsigned int>(__n)) : 466 static_cast<long>(__n)).failed()) 467 this->setstate(ios_base::badbit | ios_base::failbit); 468 } 469#ifndef _LIBCPP_NO_EXCEPTIONS 470 } 471 catch (...) 472 { 473 this->__set_badbit_and_consider_rethrow(); 474 } 475#endif // _LIBCPP_NO_EXCEPTIONS 476 return *this; 477} 478 479template <class _CharT, class _Traits> 480basic_ostream<_CharT, _Traits>& 481basic_ostream<_CharT, _Traits>::operator<<(unsigned int __n) 482{ 483#ifndef _LIBCPP_NO_EXCEPTIONS 484 try 485 { 486#endif // _LIBCPP_NO_EXCEPTIONS 487 sentry __s(*this); 488 if (__s) 489 { 490 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 491 const _Fp& __f = use_facet<_Fp>(this->getloc()); 492 if (__f.put(*this, *this, this->fill(), static_cast<unsigned long>(__n)).failed()) 493 this->setstate(ios_base::badbit | ios_base::failbit); 494 } 495#ifndef _LIBCPP_NO_EXCEPTIONS 496 } 497 catch (...) 498 { 499 this->__set_badbit_and_consider_rethrow(); 500 } 501#endif // _LIBCPP_NO_EXCEPTIONS 502 return *this; 503} 504 505template <class _CharT, class _Traits> 506basic_ostream<_CharT, _Traits>& 507basic_ostream<_CharT, _Traits>::operator<<(long __n) 508{ 509#ifndef _LIBCPP_NO_EXCEPTIONS 510 try 511 { 512#endif // _LIBCPP_NO_EXCEPTIONS 513 sentry __s(*this); 514 if (__s) 515 { 516 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 517 const _Fp& __f = use_facet<_Fp>(this->getloc()); 518 if (__f.put(*this, *this, this->fill(), __n).failed()) 519 this->setstate(ios_base::badbit | ios_base::failbit); 520 } 521#ifndef _LIBCPP_NO_EXCEPTIONS 522 } 523 catch (...) 524 { 525 this->__set_badbit_and_consider_rethrow(); 526 } 527#endif // _LIBCPP_NO_EXCEPTIONS 528 return *this; 529} 530 531template <class _CharT, class _Traits> 532basic_ostream<_CharT, _Traits>& 533basic_ostream<_CharT, _Traits>::operator<<(unsigned long __n) 534{ 535#ifndef _LIBCPP_NO_EXCEPTIONS 536 try 537 { 538#endif // _LIBCPP_NO_EXCEPTIONS 539 sentry __s(*this); 540 if (__s) 541 { 542 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 543 const _Fp& __f = use_facet<_Fp>(this->getloc()); 544 if (__f.put(*this, *this, this->fill(), __n).failed()) 545 this->setstate(ios_base::badbit | ios_base::failbit); 546 } 547#ifndef _LIBCPP_NO_EXCEPTIONS 548 } 549 catch (...) 550 { 551 this->__set_badbit_and_consider_rethrow(); 552 } 553#endif // _LIBCPP_NO_EXCEPTIONS 554 return *this; 555} 556 557template <class _CharT, class _Traits> 558basic_ostream<_CharT, _Traits>& 559basic_ostream<_CharT, _Traits>::operator<<(long long __n) 560{ 561#ifndef _LIBCPP_NO_EXCEPTIONS 562 try 563 { 564#endif // _LIBCPP_NO_EXCEPTIONS 565 sentry __s(*this); 566 if (__s) 567 { 568 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 569 const _Fp& __f = use_facet<_Fp>(this->getloc()); 570 if (__f.put(*this, *this, this->fill(), __n).failed()) 571 this->setstate(ios_base::badbit | ios_base::failbit); 572 } 573#ifndef _LIBCPP_NO_EXCEPTIONS 574 } 575 catch (...) 576 { 577 this->__set_badbit_and_consider_rethrow(); 578 } 579#endif // _LIBCPP_NO_EXCEPTIONS 580 return *this; 581} 582 583template <class _CharT, class _Traits> 584basic_ostream<_CharT, _Traits>& 585basic_ostream<_CharT, _Traits>::operator<<(unsigned long long __n) 586{ 587#ifndef _LIBCPP_NO_EXCEPTIONS 588 try 589 { 590#endif // _LIBCPP_NO_EXCEPTIONS 591 sentry __s(*this); 592 if (__s) 593 { 594 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 595 const _Fp& __f = use_facet<_Fp>(this->getloc()); 596 if (__f.put(*this, *this, this->fill(), __n).failed()) 597 this->setstate(ios_base::badbit | ios_base::failbit); 598 } 599#ifndef _LIBCPP_NO_EXCEPTIONS 600 } 601 catch (...) 602 { 603 this->__set_badbit_and_consider_rethrow(); 604 } 605#endif // _LIBCPP_NO_EXCEPTIONS 606 return *this; 607} 608 609template <class _CharT, class _Traits> 610basic_ostream<_CharT, _Traits>& 611basic_ostream<_CharT, _Traits>::operator<<(float __n) 612{ 613#ifndef _LIBCPP_NO_EXCEPTIONS 614 try 615 { 616#endif // _LIBCPP_NO_EXCEPTIONS 617 sentry __s(*this); 618 if (__s) 619 { 620 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 621 const _Fp& __f = use_facet<_Fp>(this->getloc()); 622 if (__f.put(*this, *this, this->fill(), static_cast<double>(__n)).failed()) 623 this->setstate(ios_base::badbit | ios_base::failbit); 624 } 625#ifndef _LIBCPP_NO_EXCEPTIONS 626 } 627 catch (...) 628 { 629 this->__set_badbit_and_consider_rethrow(); 630 } 631#endif // _LIBCPP_NO_EXCEPTIONS 632 return *this; 633} 634 635template <class _CharT, class _Traits> 636basic_ostream<_CharT, _Traits>& 637basic_ostream<_CharT, _Traits>::operator<<(double __n) 638{ 639#ifndef _LIBCPP_NO_EXCEPTIONS 640 try 641 { 642#endif // _LIBCPP_NO_EXCEPTIONS 643 sentry __s(*this); 644 if (__s) 645 { 646 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 647 const _Fp& __f = use_facet<_Fp>(this->getloc()); 648 if (__f.put(*this, *this, this->fill(), __n).failed()) 649 this->setstate(ios_base::badbit | ios_base::failbit); 650 } 651#ifndef _LIBCPP_NO_EXCEPTIONS 652 } 653 catch (...) 654 { 655 this->__set_badbit_and_consider_rethrow(); 656 } 657#endif // _LIBCPP_NO_EXCEPTIONS 658 return *this; 659} 660 661template <class _CharT, class _Traits> 662basic_ostream<_CharT, _Traits>& 663basic_ostream<_CharT, _Traits>::operator<<(long double __n) 664{ 665#ifndef _LIBCPP_NO_EXCEPTIONS 666 try 667 { 668#endif // _LIBCPP_NO_EXCEPTIONS 669 sentry __s(*this); 670 if (__s) 671 { 672 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 673 const _Fp& __f = use_facet<_Fp>(this->getloc()); 674 if (__f.put(*this, *this, this->fill(), __n).failed()) 675 this->setstate(ios_base::badbit | ios_base::failbit); 676 } 677#ifndef _LIBCPP_NO_EXCEPTIONS 678 } 679 catch (...) 680 { 681 this->__set_badbit_and_consider_rethrow(); 682 } 683#endif // _LIBCPP_NO_EXCEPTIONS 684 return *this; 685} 686 687template <class _CharT, class _Traits> 688basic_ostream<_CharT, _Traits>& 689basic_ostream<_CharT, _Traits>::operator<<(const void* __n) 690{ 691#ifndef _LIBCPP_NO_EXCEPTIONS 692 try 693 { 694#endif // _LIBCPP_NO_EXCEPTIONS 695 sentry __s(*this); 696 if (__s) 697 { 698 typedef num_put<char_type, ostreambuf_iterator<char_type, traits_type> > _Fp; 699 const _Fp& __f = use_facet<_Fp>(this->getloc()); 700 if (__f.put(*this, *this, this->fill(), __n).failed()) 701 this->setstate(ios_base::badbit | ios_base::failbit); 702 } 703#ifndef _LIBCPP_NO_EXCEPTIONS 704 } 705 catch (...) 706 { 707 this->__set_badbit_and_consider_rethrow(); 708 } 709#endif // _LIBCPP_NO_EXCEPTIONS 710 return *this; 711} 712 713template<class _CharT, class _Traits> 714basic_ostream<_CharT, _Traits>& 715__put_character_sequence(basic_ostream<_CharT, _Traits>& __os, 716 const _CharT* __str, size_t __len) 717{ 718#ifndef _LIBCPP_NO_EXCEPTIONS 719 try 720 { 721#endif // _LIBCPP_NO_EXCEPTIONS 722 typename basic_ostream<_CharT, _Traits>::sentry __s(__os); 723 if (__s) 724 { 725 typedef ostreambuf_iterator<_CharT, _Traits> _Ip; 726 if (__pad_and_output(_Ip(__os), 727 __str, 728 (__os.flags() & ios_base::adjustfield) == ios_base::left ? 729 __str + __len : 730 __str, 731 __str + __len, 732 __os, 733 __os.fill()).failed()) 734 __os.setstate(ios_base::badbit | ios_base::failbit); 735 } 736#ifndef _LIBCPP_NO_EXCEPTIONS 737 } 738 catch (...) 739 { 740 __os.__set_badbit_and_consider_rethrow(); 741 } 742#endif // _LIBCPP_NO_EXCEPTIONS 743 return __os; 744} 745 746 747template<class _CharT, class _Traits> 748basic_ostream<_CharT, _Traits>& 749operator<<(basic_ostream<_CharT, _Traits>& __os, _CharT __c) 750{ 751 return _VSTD::__put_character_sequence(__os, &__c, 1); 752} 753 754template<class _CharT, class _Traits> 755basic_ostream<_CharT, _Traits>& 756operator<<(basic_ostream<_CharT, _Traits>& __os, char __cn) 757{ 758#ifndef _LIBCPP_NO_EXCEPTIONS 759 try 760 { 761#endif // _LIBCPP_NO_EXCEPTIONS 762 typename basic_ostream<_CharT, _Traits>::sentry __s(__os); 763 if (__s) 764 { 765 _CharT __c = __os.widen(__cn); 766 typedef ostreambuf_iterator<_CharT, _Traits> _Ip; 767 if (__pad_and_output(_Ip(__os), 768 &__c, 769 (__os.flags() & ios_base::adjustfield) == ios_base::left ? 770 &__c + 1 : 771 &__c, 772 &__c + 1, 773 __os, 774 __os.fill()).failed()) 775 __os.setstate(ios_base::badbit | ios_base::failbit); 776 } 777#ifndef _LIBCPP_NO_EXCEPTIONS 778 } 779 catch (...) 780 { 781 __os.__set_badbit_and_consider_rethrow(); 782 } 783#endif // _LIBCPP_NO_EXCEPTIONS 784 return __os; 785} 786 787template<class _Traits> 788basic_ostream<char, _Traits>& 789operator<<(basic_ostream<char, _Traits>& __os, char __c) 790{ 791 return _VSTD::__put_character_sequence(__os, &__c, 1); 792} 793 794template<class _Traits> 795basic_ostream<char, _Traits>& 796operator<<(basic_ostream<char, _Traits>& __os, signed char __c) 797{ 798 return _VSTD::__put_character_sequence(__os, (char *) &__c, 1); 799} 800 801template<class _Traits> 802basic_ostream<char, _Traits>& 803operator<<(basic_ostream<char, _Traits>& __os, unsigned char __c) 804{ 805 return _VSTD::__put_character_sequence(__os, (char *) &__c, 1); 806} 807 808template<class _CharT, class _Traits> 809basic_ostream<_CharT, _Traits>& 810operator<<(basic_ostream<_CharT, _Traits>& __os, const _CharT* __str) 811{ 812 return _VSTD::__put_character_sequence(__os, __str, _Traits::length(__str)); 813} 814 815template<class _CharT, class _Traits> 816basic_ostream<_CharT, _Traits>& 817operator<<(basic_ostream<_CharT, _Traits>& __os, const char* __strn) 818{ 819#ifndef _LIBCPP_NO_EXCEPTIONS 820 try 821 { 822#endif // _LIBCPP_NO_EXCEPTIONS 823 typename basic_ostream<_CharT, _Traits>::sentry __s(__os); 824 if (__s) 825 { 826 typedef ostreambuf_iterator<_CharT, _Traits> _Ip; 827 size_t __len = char_traits<char>::length(__strn); 828 const int __bs = 100; 829 _CharT __wbb[__bs]; 830 _CharT* __wb = __wbb; 831 unique_ptr<_CharT, void(*)(void*)> __h(0, free); 832 if (__len > __bs) 833 { 834 __wb = (_CharT*)malloc(__len*sizeof(_CharT)); 835 if (__wb == 0) 836 __throw_bad_alloc(); 837 __h.reset(__wb); 838 } 839 for (_CharT* __p = __wb; *__strn != '\0'; ++__strn, ++__p) 840 *__p = __os.widen(*__strn); 841 if (__pad_and_output(_Ip(__os), 842 __wb, 843 (__os.flags() & ios_base::adjustfield) == ios_base::left ? 844 __wb + __len : 845 __wb, 846 __wb + __len, 847 __os, 848 __os.fill()).failed()) 849 __os.setstate(ios_base::badbit | ios_base::failbit); 850 } 851#ifndef _LIBCPP_NO_EXCEPTIONS 852 } 853 catch (...) 854 { 855 __os.__set_badbit_and_consider_rethrow(); 856 } 857#endif // _LIBCPP_NO_EXCEPTIONS 858 return __os; 859} 860 861template<class _Traits> 862basic_ostream<char, _Traits>& 863operator<<(basic_ostream<char, _Traits>& __os, const char* __str) 864{ 865 return _VSTD::__put_character_sequence(__os, __str, _Traits::length(__str)); 866} 867 868template<class _Traits> 869basic_ostream<char, _Traits>& 870operator<<(basic_ostream<char, _Traits>& __os, const signed char* __str) 871{ 872 const char *__s = (const char *) __str; 873 return _VSTD::__put_character_sequence(__os, __s, _Traits::length(__s)); 874} 875 876template<class _Traits> 877basic_ostream<char, _Traits>& 878operator<<(basic_ostream<char, _Traits>& __os, const unsigned char* __str) 879{ 880 const char *__s = (const char *) __str; 881 return _VSTD::__put_character_sequence(__os, __s, _Traits::length(__s)); 882} 883 884template <class _CharT, class _Traits> 885basic_ostream<_CharT, _Traits>& 886basic_ostream<_CharT, _Traits>::put(char_type __c) 887{ 888#ifndef _LIBCPP_NO_EXCEPTIONS 889 try 890 { 891#endif // _LIBCPP_NO_EXCEPTIONS 892 sentry __s(*this); 893 if (__s) 894 { 895 typedef ostreambuf_iterator<_CharT, _Traits> _Op; 896 _Op __o(*this); 897 *__o = __c; 898 if (__o.failed()) 899 this->setstate(ios_base::badbit); 900 } 901#ifndef _LIBCPP_NO_EXCEPTIONS 902 } 903 catch (...) 904 { 905 this->__set_badbit_and_consider_rethrow(); 906 } 907#endif // _LIBCPP_NO_EXCEPTIONS 908 return *this; 909} 910 911template <class _CharT, class _Traits> 912basic_ostream<_CharT, _Traits>& 913basic_ostream<_CharT, _Traits>::write(const char_type* __s, streamsize __n) 914{ 915#ifndef _LIBCPP_NO_EXCEPTIONS 916 try 917 { 918#endif // _LIBCPP_NO_EXCEPTIONS 919 sentry __sen(*this); 920 if (__sen && __n) 921 { 922 if (this->rdbuf()->sputn(__s, __n) != __n) 923 this->setstate(ios_base::badbit); 924 } 925#ifndef _LIBCPP_NO_EXCEPTIONS 926 } 927 catch (...) 928 { 929 this->__set_badbit_and_consider_rethrow(); 930 } 931#endif // _LIBCPP_NO_EXCEPTIONS 932 return *this; 933} 934 935template <class _CharT, class _Traits> 936basic_ostream<_CharT, _Traits>& 937basic_ostream<_CharT, _Traits>::flush() 938{ 939#ifndef _LIBCPP_NO_EXCEPTIONS 940 try 941 { 942#endif // _LIBCPP_NO_EXCEPTIONS 943 if (this->rdbuf()) 944 { 945 sentry __s(*this); 946 if (__s) 947 { 948 if (this->rdbuf()->pubsync() == -1) 949 this->setstate(ios_base::badbit); 950 } 951 } 952#ifndef _LIBCPP_NO_EXCEPTIONS 953 } 954 catch (...) 955 { 956 this->__set_badbit_and_consider_rethrow(); 957 } 958#endif // _LIBCPP_NO_EXCEPTIONS 959 return *this; 960} 961 962template <class _CharT, class _Traits> 963typename basic_ostream<_CharT, _Traits>::pos_type 964basic_ostream<_CharT, _Traits>::tellp() 965{ 966 if (this->fail()) 967 return pos_type(-1); 968 return this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::out); 969} 970 971template <class _CharT, class _Traits> 972basic_ostream<_CharT, _Traits>& 973basic_ostream<_CharT, _Traits>::seekp(pos_type __pos) 974{ 975 sentry __s(*this); 976 if (!this->fail()) 977 { 978 if (this->rdbuf()->pubseekpos(__pos, ios_base::out) == pos_type(-1)) 979 this->setstate(ios_base::failbit); 980 } 981 return *this; 982} 983 984template <class _CharT, class _Traits> 985basic_ostream<_CharT, _Traits>& 986basic_ostream<_CharT, _Traits>::seekp(off_type __off, ios_base::seekdir __dir) 987{ 988 sentry __s(*this); 989 if (!this->fail()) 990 { 991 if (this->rdbuf()->pubseekoff(__off, __dir, ios_base::out) == pos_type(-1)) 992 this->setstate(ios_base::failbit); 993 } 994 return *this; 995} 996 997template <class _CharT, class _Traits> 998inline 999basic_ostream<_CharT, _Traits>& 1000endl(basic_ostream<_CharT, _Traits>& __os) 1001{ 1002 __os.put(__os.widen('\n')); 1003 __os.flush(); 1004 return __os; 1005} 1006 1007template <class _CharT, class _Traits> 1008inline 1009basic_ostream<_CharT, _Traits>& 1010ends(basic_ostream<_CharT, _Traits>& __os) 1011{ 1012 __os.put(_CharT()); 1013 return __os; 1014} 1015 1016template <class _CharT, class _Traits> 1017inline 1018basic_ostream<_CharT, _Traits>& 1019flush(basic_ostream<_CharT, _Traits>& __os) 1020{ 1021 __os.flush(); 1022 return __os; 1023} 1024 1025template <class _Stream, class _Tp, class = void> 1026struct __is_ostreamable : false_type { }; 1027 1028template <class _Stream, class _Tp> 1029struct __is_ostreamable<_Stream, _Tp, decltype( 1030 declval<_Stream>() << declval<_Tp>(), void() 1031)> : true_type { }; 1032 1033template <class _Stream, class _Tp, class = typename enable_if< 1034 _And<is_base_of<ios_base, _Stream>, 1035 __is_ostreamable<_Stream&, const _Tp&> >::value 1036>::type> 1037_LIBCPP_INLINE_VISIBILITY 1038_Stream&& operator<<(_Stream&& __os, const _Tp& __x) 1039{ 1040 __os << __x; 1041 return _VSTD::move(__os); 1042} 1043 1044template<class _CharT, class _Traits, class _Allocator> 1045basic_ostream<_CharT, _Traits>& 1046operator<<(basic_ostream<_CharT, _Traits>& __os, 1047 const basic_string<_CharT, _Traits, _Allocator>& __str) 1048{ 1049 return _VSTD::__put_character_sequence(__os, __str.data(), __str.size()); 1050} 1051 1052template<class _CharT, class _Traits> 1053basic_ostream<_CharT, _Traits>& 1054operator<<(basic_ostream<_CharT, _Traits>& __os, 1055 basic_string_view<_CharT, _Traits> __sv) 1056{ 1057 return _VSTD::__put_character_sequence(__os, __sv.data(), __sv.size()); 1058} 1059 1060template <class _CharT, class _Traits> 1061inline _LIBCPP_INLINE_VISIBILITY 1062basic_ostream<_CharT, _Traits>& 1063operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __ec) 1064{ 1065 return __os << __ec.category().name() << ':' << __ec.value(); 1066} 1067 1068template<class _CharT, class _Traits, class _Yp> 1069inline _LIBCPP_INLINE_VISIBILITY 1070basic_ostream<_CharT, _Traits>& 1071operator<<(basic_ostream<_CharT, _Traits>& __os, shared_ptr<_Yp> const& __p) 1072{ 1073 return __os << __p.get(); 1074} 1075 1076template<class _CharT, class _Traits, class _Yp, class _Dp> 1077inline _LIBCPP_INLINE_VISIBILITY 1078typename enable_if 1079< 1080 is_same<void, typename __void_t<decltype((declval<basic_ostream<_CharT, _Traits>&>() << declval<typename unique_ptr<_Yp, _Dp>::pointer>()))>::type>::value, 1081 basic_ostream<_CharT, _Traits>& 1082>::type 1083operator<<(basic_ostream<_CharT, _Traits>& __os, unique_ptr<_Yp, _Dp> const& __p) 1084{ 1085 return __os << __p.get(); 1086} 1087 1088template <class _CharT, class _Traits, size_t _Size> 1089basic_ostream<_CharT, _Traits>& 1090operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x) 1091{ 1092 return __os << __x.template to_string<_CharT, _Traits> 1093 (use_facet<ctype<_CharT> >(__os.getloc()).widen('0'), 1094 use_facet<ctype<_CharT> >(__os.getloc()).widen('1')); 1095} 1096 1097_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostream<char>) 1098#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS 1099_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ostream<wchar_t>) 1100#endif 1101 1102_LIBCPP_END_NAMESPACE_STD 1103 1104#endif // _LIBCPP_OSTREAM 1105