1// -*- C++ -*-
2//===--------------------------- sstream ----------------------------------===//
3//
4//                     The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10
11#ifndef _LIBCPP_SSTREAM
12#define _LIBCPP_SSTREAM
13
14/*
15    sstream synopsis
16
17template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
18class basic_stringbuf
19    : public basic_streambuf<charT, traits>
20{
21public:
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    typedef Allocator                      allocator_type;
28
29    // 27.8.1.1 Constructors:
30    explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out);
31    explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& str,
32                             ios_base::openmode which = ios_base::in | ios_base::out);
33    basic_stringbuf(basic_stringbuf&& rhs);
34
35    // 27.8.1.2 Assign and swap:
36    basic_stringbuf& operator=(basic_stringbuf&& rhs);
37    void swap(basic_stringbuf& rhs);
38
39    // 27.8.1.3 Get and set:
40    basic_string<char_type, traits_type, allocator_type> str() const;
41    void str(const basic_string<char_type, traits_type, allocator_type>& s);
42
43protected:
44    // 27.8.1.4 Overridden virtual functions:
45    virtual int_type underflow();
46    virtual int_type pbackfail(int_type c = traits_type::eof());
47    virtual int_type overflow (int_type c = traits_type::eof());
48    virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize);
49    virtual pos_type seekoff(off_type off, ios_base::seekdir way,
50                             ios_base::openmode which = ios_base::in | ios_base::out);
51    virtual pos_type seekpos(pos_type sp,
52                             ios_base::openmode which = ios_base::in | ios_base::out);
53};
54
55template <class charT, class traits, class Allocator>
56  void swap(basic_stringbuf<charT, traits, Allocator>& x,
57            basic_stringbuf<charT, traits, Allocator>& y);
58
59typedef basic_stringbuf<char>    stringbuf;
60typedef basic_stringbuf<wchar_t> wstringbuf;
61
62template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
63class basic_istringstream
64    : public basic_istream<charT, traits>
65{
66public:
67    typedef charT                          char_type;
68    typedef traits                         traits_type;
69    typedef typename traits_type::int_type int_type;
70    typedef typename traits_type::pos_type pos_type;
71    typedef typename traits_type::off_type off_type;
72    typedef Allocator                      allocator_type;
73
74    // 27.8.2.1 Constructors:
75    explicit basic_istringstream(ios_base::openmode which = ios_base::in);
76    explicit basic_istringstream(const basic_string<char_type, traits_type,allocator_type>& str,
77                                 ios_base::openmode which = ios_base::in);
78    basic_istringstream(basic_istringstream&& rhs);
79
80    // 27.8.2.2 Assign and swap:
81    basic_istringstream& operator=(basic_istringstream&& rhs);
82    void swap(basic_istringstream& rhs);
83
84    // 27.8.2.3 Members:
85    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
86    basic_string<char_type, traits_type, allocator_type> str() const;
87    void str(const basic_string<char_type, traits_type, allocator_type>& s);
88};
89
90template <class charT, class traits, class Allocator>
91  void swap(basic_istringstream<charT, traits, Allocator>& x,
92            basic_istringstream<charT, traits, Allocator>& y);
93
94typedef basic_istringstream<char>    istringstream;
95typedef basic_istringstream<wchar_t> wistringstream;
96
97template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
98class basic_ostringstream
99    : public basic_ostream<charT, traits>
100{
101public:
102    // types:
103    typedef charT                          char_type;
104    typedef traits                         traits_type;
105    typedef typename traits_type::int_type int_type;
106    typedef typename traits_type::pos_type pos_type;
107    typedef typename traits_type::off_type off_type;
108    typedef Allocator                      allocator_type;
109
110    // 27.8.3.1 Constructors/destructor:
111    explicit basic_ostringstream(ios_base::openmode which = ios_base::out);
112    explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& str,
113                                 ios_base::openmode which = ios_base::out);
114    basic_ostringstream(basic_ostringstream&& rhs);
115
116    // 27.8.3.2 Assign/swap:
117    basic_ostringstream& operator=(basic_ostringstream&& rhs);
118    void swap(basic_ostringstream& rhs);
119
120    // 27.8.3.3 Members:
121    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
122    basic_string<char_type, traits_type, allocator_type> str() const;
123    void str(const basic_string<char_type, traits_type, allocator_type>& s);
124};
125
126template <class charT, class traits, class Allocator>
127  void swap(basic_ostringstream<charT, traits, Allocator>& x,
128            basic_ostringstream<charT, traits, Allocator>& y);
129
130typedef basic_ostringstream<char>    ostringstream;
131typedef basic_ostringstream<wchar_t> wostringstream;
132
133template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
134class basic_stringstream
135    : public basic_iostream<charT, traits>
136{
137public:
138    // types:
139    typedef charT                          char_type;
140    typedef traits                         traits_type;
141    typedef typename traits_type::int_type int_type;
142    typedef typename traits_type::pos_type pos_type;
143    typedef typename traits_type::off_type off_type;
144    typedef Allocator                      allocator_type;
145
146    // constructors/destructor
147    explicit basic_stringstream(ios_base::openmode which = ios_base::out|ios_base::in);
148    explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& str,
149                                ios_base::openmode which = ios_base::out|ios_base::in);
150    basic_stringstream(basic_stringstream&& rhs);
151
152    // 27.8.5.1 Assign/swap:
153    basic_stringstream& operator=(basic_stringstream&& rhs);
154    void swap(basic_stringstream& rhs);
155
156    // Members:
157    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
158    basic_string<char_type, traits_type, allocator_type> str() const;
159    void str(const basic_string<char_type, traits_type, allocator_type>& str);
160};
161
162template <class charT, class traits, class Allocator>
163  void swap(basic_stringstream<charT, traits, Allocator>& x,
164            basic_stringstream<charT, traits, Allocator>& y);
165
166typedef basic_stringstream<char>    stringstream;
167typedef basic_stringstream<wchar_t> wstringstream;
168
169}  // std
170
171*/
172
173#include <__config>
174#include <ostream>
175#include <istream>
176#include <string>
177
178#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
179#pragma GCC system_header
180#endif
181
182_LIBCPP_PUSH_MACROS
183#include <__undef_macros>
184
185
186_LIBCPP_BEGIN_NAMESPACE_STD
187
188// basic_stringbuf
189
190template <class _CharT, class _Traits, class _Allocator>
191class _LIBCPP_TEMPLATE_VIS basic_stringbuf
192    : public basic_streambuf<_CharT, _Traits>
193{
194public:
195    typedef _CharT                         char_type;
196    typedef _Traits                        traits_type;
197    typedef typename traits_type::int_type int_type;
198    typedef typename traits_type::pos_type pos_type;
199    typedef typename traits_type::off_type off_type;
200    typedef _Allocator                     allocator_type;
201
202    typedef basic_string<char_type, traits_type, allocator_type> string_type;
203
204private:
205
206    string_type __str_;
207    mutable char_type* __hm_;
208    ios_base::openmode __mode_;
209
210public:
211    // 27.8.1.1 Constructors:
212    inline _LIBCPP_INLINE_VISIBILITY
213    explicit basic_stringbuf(ios_base::openmode __wch = ios_base::in | ios_base::out);
214    inline _LIBCPP_INLINE_VISIBILITY
215    explicit basic_stringbuf(const string_type& __s,
216                             ios_base::openmode __wch = ios_base::in | ios_base::out);
217#ifndef _LIBCPP_CXX03_LANG
218    basic_stringbuf(basic_stringbuf&& __rhs);
219
220    // 27.8.1.2 Assign and swap:
221    basic_stringbuf& operator=(basic_stringbuf&& __rhs);
222#endif
223    void swap(basic_stringbuf& __rhs);
224
225    // 27.8.1.3 Get and set:
226    string_type str() const;
227    void str(const string_type& __s);
228
229protected:
230    // 27.8.1.4 Overridden virtual functions:
231    virtual int_type underflow();
232    virtual int_type pbackfail(int_type __c = traits_type::eof());
233    virtual int_type overflow (int_type __c = traits_type::eof());
234    virtual pos_type seekoff(off_type __off, ios_base::seekdir __way,
235                             ios_base::openmode __wch = ios_base::in | ios_base::out);
236    inline _LIBCPP_INLINE_VISIBILITY
237    virtual pos_type seekpos(pos_type __sp,
238                             ios_base::openmode __wch = ios_base::in | ios_base::out);
239};
240
241template <class _CharT, class _Traits, class _Allocator>
242basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(ios_base::openmode __wch)
243    : __hm_(0),
244      __mode_(__wch)
245{
246    str(string_type());
247}
248
249template <class _CharT, class _Traits, class _Allocator>
250basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(const string_type& __s,
251                             ios_base::openmode __wch)
252    : __str_(__s.get_allocator()),
253      __hm_(0),
254      __mode_(__wch)
255{
256    str(__s);
257}
258
259#ifndef _LIBCPP_CXX03_LANG
260
261template <class _CharT, class _Traits, class _Allocator>
262basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(basic_stringbuf&& __rhs)
263    : __mode_(__rhs.__mode_)
264{
265    char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
266    ptrdiff_t __binp = -1;
267    ptrdiff_t __ninp = -1;
268    ptrdiff_t __einp = -1;
269    if (__rhs.eback() != nullptr)
270    {
271        __binp = __rhs.eback() - __p;
272        __ninp = __rhs.gptr() - __p;
273        __einp = __rhs.egptr() - __p;
274    }
275    ptrdiff_t __bout = -1;
276    ptrdiff_t __nout = -1;
277    ptrdiff_t __eout = -1;
278    if (__rhs.pbase() != nullptr)
279    {
280        __bout = __rhs.pbase() - __p;
281        __nout = __rhs.pptr() - __p;
282        __eout = __rhs.epptr() - __p;
283    }
284    ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
285    __str_ = _VSTD::move(__rhs.__str_);
286    __p = const_cast<char_type*>(__str_.data());
287    if (__binp != -1)
288        this->setg(__p + __binp, __p + __ninp, __p + __einp);
289    if (__bout != -1)
290    {
291        this->setp(__p + __bout, __p + __eout);
292        this->__pbump(__nout);
293    }
294    __hm_ = __hm == -1 ? nullptr : __p + __hm;
295    __p = const_cast<char_type*>(__rhs.__str_.data());
296    __rhs.setg(__p, __p, __p);
297    __rhs.setp(__p, __p);
298    __rhs.__hm_ = __p;
299    this->pubimbue(__rhs.getloc());
300}
301
302template <class _CharT, class _Traits, class _Allocator>
303basic_stringbuf<_CharT, _Traits, _Allocator>&
304basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs)
305{
306    char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
307    ptrdiff_t __binp = -1;
308    ptrdiff_t __ninp = -1;
309    ptrdiff_t __einp = -1;
310    if (__rhs.eback() != nullptr)
311    {
312        __binp = __rhs.eback() - __p;
313        __ninp = __rhs.gptr() - __p;
314        __einp = __rhs.egptr() - __p;
315    }
316    ptrdiff_t __bout = -1;
317    ptrdiff_t __nout = -1;
318    ptrdiff_t __eout = -1;
319    if (__rhs.pbase() != nullptr)
320    {
321        __bout = __rhs.pbase() - __p;
322        __nout = __rhs.pptr() - __p;
323        __eout = __rhs.epptr() - __p;
324    }
325    ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
326    __str_ = _VSTD::move(__rhs.__str_);
327    __p = const_cast<char_type*>(__str_.data());
328    if (__binp != -1)
329        this->setg(__p + __binp, __p + __ninp, __p + __einp);
330    else
331        this->setg(nullptr, nullptr, nullptr);
332    if (__bout != -1)
333    {
334        this->setp(__p + __bout, __p + __eout);
335        this->__pbump(__nout);
336    }
337    else
338        this->setp(nullptr, nullptr);
339
340    __hm_ = __hm == -1 ? nullptr : __p + __hm;
341    __mode_ = __rhs.__mode_;
342    __p = const_cast<char_type*>(__rhs.__str_.data());
343    __rhs.setg(__p, __p, __p);
344    __rhs.setp(__p, __p);
345    __rhs.__hm_ = __p;
346    this->pubimbue(__rhs.getloc());
347    return *this;
348}
349
350#endif  // _LIBCPP_CXX03_LANG
351
352template <class _CharT, class _Traits, class _Allocator>
353void
354basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs)
355{
356    char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
357    ptrdiff_t __rbinp = -1;
358    ptrdiff_t __rninp = -1;
359    ptrdiff_t __reinp = -1;
360    if (__rhs.eback() != nullptr)
361    {
362        __rbinp = __rhs.eback() - __p;
363        __rninp = __rhs.gptr() - __p;
364        __reinp = __rhs.egptr() - __p;
365    }
366    ptrdiff_t __rbout = -1;
367    ptrdiff_t __rnout = -1;
368    ptrdiff_t __reout = -1;
369    if (__rhs.pbase() != nullptr)
370    {
371        __rbout = __rhs.pbase() - __p;
372        __rnout = __rhs.pptr() - __p;
373        __reout = __rhs.epptr() - __p;
374    }
375    ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
376    __p = const_cast<char_type*>(__str_.data());
377    ptrdiff_t __lbinp = -1;
378    ptrdiff_t __lninp = -1;
379    ptrdiff_t __leinp = -1;
380    if (this->eback() != nullptr)
381    {
382        __lbinp = this->eback() - __p;
383        __lninp = this->gptr() - __p;
384        __leinp = this->egptr() - __p;
385    }
386    ptrdiff_t __lbout = -1;
387    ptrdiff_t __lnout = -1;
388    ptrdiff_t __leout = -1;
389    if (this->pbase() != nullptr)
390    {
391        __lbout = this->pbase() - __p;
392        __lnout = this->pptr() - __p;
393        __leout = this->epptr() - __p;
394    }
395    ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p;
396    _VSTD::swap(__mode_, __rhs.__mode_);
397    __str_.swap(__rhs.__str_);
398    __p = const_cast<char_type*>(__str_.data());
399    if (__rbinp != -1)
400        this->setg(__p + __rbinp, __p + __rninp, __p + __reinp);
401    else
402        this->setg(nullptr, nullptr, nullptr);
403    if (__rbout != -1)
404    {
405        this->setp(__p + __rbout, __p + __reout);
406        this->__pbump(__rnout);
407    }
408    else
409        this->setp(nullptr, nullptr);
410    __hm_ = __rhm == -1 ? nullptr : __p + __rhm;
411    __p = const_cast<char_type*>(__rhs.__str_.data());
412    if (__lbinp != -1)
413        __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp);
414    else
415        __rhs.setg(nullptr, nullptr, nullptr);
416    if (__lbout != -1)
417    {
418        __rhs.setp(__p + __lbout, __p + __leout);
419        __rhs.__pbump(__lnout);
420    }
421    else
422        __rhs.setp(nullptr, nullptr);
423    __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm;
424    locale __tl = __rhs.getloc();
425    __rhs.pubimbue(this->getloc());
426    this->pubimbue(__tl);
427}
428
429template <class _CharT, class _Traits, class _Allocator>
430inline _LIBCPP_INLINE_VISIBILITY
431void
432swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x,
433     basic_stringbuf<_CharT, _Traits, _Allocator>& __y)
434{
435    __x.swap(__y);
436}
437
438template <class _CharT, class _Traits, class _Allocator>
439basic_string<_CharT, _Traits, _Allocator>
440basic_stringbuf<_CharT, _Traits, _Allocator>::str() const
441{
442    if (__mode_ & ios_base::out)
443    {
444        if (__hm_ < this->pptr())
445            __hm_ = this->pptr();
446        return string_type(this->pbase(), __hm_, __str_.get_allocator());
447    }
448    else if (__mode_ & ios_base::in)
449        return string_type(this->eback(), this->egptr(), __str_.get_allocator());
450    return string_type(__str_.get_allocator());
451}
452
453template <class _CharT, class _Traits, class _Allocator>
454void
455basic_stringbuf<_CharT, _Traits, _Allocator>::str(const string_type& __s)
456{
457    __str_ = __s;
458    __hm_ = 0;
459    if (__mode_ & ios_base::in)
460    {
461        __hm_ = const_cast<char_type*>(__str_.data()) + __str_.size();
462        this->setg(const_cast<char_type*>(__str_.data()),
463                   const_cast<char_type*>(__str_.data()),
464                   __hm_);
465    }
466    if (__mode_ & ios_base::out)
467    {
468        typename string_type::size_type __sz = __str_.size();
469        __hm_ = const_cast<char_type*>(__str_.data()) + __sz;
470        __str_.resize(__str_.capacity());
471        this->setp(const_cast<char_type*>(__str_.data()),
472                   const_cast<char_type*>(__str_.data()) + __str_.size());
473        if (__mode_ & (ios_base::app | ios_base::ate))
474        {
475            while (__sz > INT_MAX)
476            {
477            	this->pbump(INT_MAX);
478            	__sz -= INT_MAX;
479            }
480            if (__sz > 0)
481            	this->pbump(__sz);
482    	}
483    }
484}
485
486template <class _CharT, class _Traits, class _Allocator>
487typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
488basic_stringbuf<_CharT, _Traits, _Allocator>::underflow()
489{
490    if (__hm_ < this->pptr())
491        __hm_ = this->pptr();
492    if (__mode_ & ios_base::in)
493    {
494        if (this->egptr() < __hm_)
495            this->setg(this->eback(), this->gptr(), __hm_);
496        if (this->gptr() < this->egptr())
497            return traits_type::to_int_type(*this->gptr());
498    }
499    return traits_type::eof();
500}
501
502template <class _CharT, class _Traits, class _Allocator>
503typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
504basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c)
505{
506    if (__hm_ < this->pptr())
507        __hm_ = this->pptr();
508    if (this->eback() < this->gptr())
509    {
510        if (traits_type::eq_int_type(__c, traits_type::eof()))
511        {
512            this->setg(this->eback(), this->gptr()-1, __hm_);
513            return traits_type::not_eof(__c);
514        }
515        if ((__mode_ & ios_base::out) ||
516            traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1]))
517        {
518            this->setg(this->eback(), this->gptr()-1, __hm_);
519            *this->gptr() = traits_type::to_char_type(__c);
520            return __c;
521        }
522    }
523    return traits_type::eof();
524}
525
526template <class _CharT, class _Traits, class _Allocator>
527typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
528basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c)
529{
530    if (!traits_type::eq_int_type(__c, traits_type::eof()))
531    {
532        ptrdiff_t __ninp = this->gptr()  - this->eback();
533        if (this->pptr() == this->epptr())
534        {
535            if (!(__mode_ & ios_base::out))
536                return traits_type::eof();
537#ifndef _LIBCPP_NO_EXCEPTIONS
538            try
539            {
540#endif  // _LIBCPP_NO_EXCEPTIONS
541                ptrdiff_t __nout = this->pptr()  - this->pbase();
542                ptrdiff_t __hm = __hm_ - this->pbase();
543                __str_.push_back(char_type());
544                __str_.resize(__str_.capacity());
545                char_type* __p = const_cast<char_type*>(__str_.data());
546                this->setp(__p, __p + __str_.size());
547                this->__pbump(__nout);
548                __hm_ = this->pbase() + __hm;
549#ifndef _LIBCPP_NO_EXCEPTIONS
550            }
551            catch (...)
552            {
553                return traits_type::eof();
554            }
555#endif  // _LIBCPP_NO_EXCEPTIONS
556        }
557        __hm_ = _VSTD::max(this->pptr() + 1, __hm_);
558        if (__mode_ & ios_base::in)
559        {
560            char_type* __p = const_cast<char_type*>(__str_.data());
561            this->setg(__p, __p + __ninp, __hm_);
562        }
563        return this->sputc(__c);
564    }
565    return traits_type::not_eof(__c);
566}
567
568template <class _CharT, class _Traits, class _Allocator>
569typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type
570basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off,
571                                                      ios_base::seekdir __way,
572                                                      ios_base::openmode __wch)
573{
574    if (__hm_ < this->pptr())
575        __hm_ = this->pptr();
576    if ((__wch & (ios_base::in | ios_base::out)) == 0)
577        return pos_type(-1);
578    if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out)
579        && __way == ios_base::cur)
580        return pos_type(-1);
581    off_type __noff;
582    switch (__way)
583    {
584    case ios_base::beg:
585        __noff = 0;
586        break;
587    case ios_base::cur:
588        if (__wch & ios_base::in)
589            __noff = this->gptr() - this->eback();
590        else
591            __noff = this->pptr() - this->pbase();
592        break;
593    case ios_base::end:
594        __noff = __hm_ - __str_.data();
595        break;
596    default:
597        return pos_type(-1);
598    }
599    __noff += __off;
600    if (__noff < 0 || __hm_ - __str_.data() < __noff)
601        return pos_type(-1);
602    if (__noff != 0)
603    {
604        if ((__wch & ios_base::in) && this->gptr() == 0)
605            return pos_type(-1);
606        if ((__wch & ios_base::out) && this->pptr() == 0)
607            return pos_type(-1);
608    }
609    if (__wch & ios_base::in)
610        this->setg(this->eback(), this->eback() + __noff, __hm_);
611    if (__wch & ios_base::out)
612    {
613        this->setp(this->pbase(), this->epptr());
614        this->pbump(__noff);
615    }
616    return pos_type(__noff);
617}
618
619template <class _CharT, class _Traits, class _Allocator>
620typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type
621basic_stringbuf<_CharT, _Traits, _Allocator>::seekpos(pos_type __sp,
622                                                      ios_base::openmode __wch)
623{
624    return seekoff(__sp, ios_base::beg, __wch);
625}
626
627// basic_istringstream
628
629template <class _CharT, class _Traits, class _Allocator>
630class _LIBCPP_TEMPLATE_VIS basic_istringstream
631    : public basic_istream<_CharT, _Traits>
632{
633public:
634    typedef _CharT                         char_type;
635    typedef _Traits                        traits_type;
636    typedef typename traits_type::int_type int_type;
637    typedef typename traits_type::pos_type pos_type;
638    typedef typename traits_type::off_type off_type;
639    typedef _Allocator                     allocator_type;
640
641    typedef basic_string<char_type, traits_type, allocator_type> string_type;
642
643private:
644    basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
645
646public:
647    // 27.8.2.1 Constructors:
648    inline _LIBCPP_INLINE_VISIBILITY
649    explicit basic_istringstream(ios_base::openmode __wch = ios_base::in);
650    inline _LIBCPP_INLINE_VISIBILITY
651    explicit basic_istringstream(const string_type& __s,
652                                 ios_base::openmode __wch = ios_base::in);
653#ifndef _LIBCPP_CXX03_LANG
654    inline _LIBCPP_INLINE_VISIBILITY
655    basic_istringstream(basic_istringstream&& __rhs);
656
657    // 27.8.2.2 Assign and swap:
658    basic_istringstream& operator=(basic_istringstream&& __rhs);
659#endif  // _LIBCPP_CXX03_LANG
660    inline _LIBCPP_INLINE_VISIBILITY
661    void swap(basic_istringstream& __rhs);
662
663    // 27.8.2.3 Members:
664    inline _LIBCPP_INLINE_VISIBILITY
665    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
666    inline _LIBCPP_INLINE_VISIBILITY
667    string_type str() const;
668    inline _LIBCPP_INLINE_VISIBILITY
669    void str(const string_type& __s);
670};
671
672template <class _CharT, class _Traits, class _Allocator>
673basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(ios_base::openmode __wch)
674    : basic_istream<_CharT, _Traits>(&__sb_),
675      __sb_(__wch | ios_base::in)
676{
677}
678
679template <class _CharT, class _Traits, class _Allocator>
680basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(const string_type& __s,
681                                                                      ios_base::openmode __wch)
682    : basic_istream<_CharT, _Traits>(&__sb_),
683      __sb_(__s, __wch | ios_base::in)
684{
685}
686
687#ifndef _LIBCPP_CXX03_LANG
688
689template <class _CharT, class _Traits, class _Allocator>
690basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(basic_istringstream&& __rhs)
691    : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs)),
692      __sb_(_VSTD::move(__rhs.__sb_))
693{
694    basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
695}
696
697template <class _CharT, class _Traits, class _Allocator>
698basic_istringstream<_CharT, _Traits, _Allocator>&
699basic_istringstream<_CharT, _Traits, _Allocator>::operator=(basic_istringstream&& __rhs)
700{
701    basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
702    __sb_ = _VSTD::move(__rhs.__sb_);
703    return *this;
704}
705
706#endif  // _LIBCPP_CXX03_LANG
707
708template <class _CharT, class _Traits, class _Allocator>
709void basic_istringstream<_CharT, _Traits, _Allocator>::swap(basic_istringstream& __rhs)
710{
711    basic_istream<char_type, traits_type>::swap(__rhs);
712    __sb_.swap(__rhs.__sb_);
713}
714
715template <class _CharT, class _Traits, class _Allocator>
716inline _LIBCPP_INLINE_VISIBILITY
717void
718swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x,
719     basic_istringstream<_CharT, _Traits, _Allocator>& __y)
720{
721    __x.swap(__y);
722}
723
724template <class _CharT, class _Traits, class _Allocator>
725basic_stringbuf<_CharT, _Traits, _Allocator>*
726basic_istringstream<_CharT, _Traits, _Allocator>::rdbuf() const
727{
728    return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
729}
730
731template <class _CharT, class _Traits, class _Allocator>
732basic_string<_CharT, _Traits, _Allocator>
733basic_istringstream<_CharT, _Traits, _Allocator>::str() const
734{
735    return __sb_.str();
736}
737
738template <class _CharT, class _Traits, class _Allocator>
739void basic_istringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
740{
741    __sb_.str(__s);
742}
743
744// basic_ostringstream
745
746template <class _CharT, class _Traits, class _Allocator>
747class _LIBCPP_TEMPLATE_VIS basic_ostringstream
748    : public basic_ostream<_CharT, _Traits>
749{
750public:
751    typedef _CharT                         char_type;
752    typedef _Traits                        traits_type;
753    typedef typename traits_type::int_type int_type;
754    typedef typename traits_type::pos_type pos_type;
755    typedef typename traits_type::off_type off_type;
756    typedef _Allocator                     allocator_type;
757
758    typedef basic_string<char_type, traits_type, allocator_type> string_type;
759
760private:
761    basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
762
763public:
764    // 27.8.2.1 Constructors:
765    inline _LIBCPP_INLINE_VISIBILITY
766    explicit basic_ostringstream(ios_base::openmode __wch = ios_base::out);
767    inline _LIBCPP_INLINE_VISIBILITY
768    explicit basic_ostringstream(const string_type& __s,
769                                 ios_base::openmode __wch = ios_base::out);
770#ifndef _LIBCPP_CXX03_LANG
771    inline _LIBCPP_INLINE_VISIBILITY
772    basic_ostringstream(basic_ostringstream&& __rhs);
773
774    // 27.8.2.2 Assign and swap:
775    basic_ostringstream& operator=(basic_ostringstream&& __rhs);
776#endif  // _LIBCPP_CXX03_LANG
777    inline _LIBCPP_INLINE_VISIBILITY
778    void swap(basic_ostringstream& __rhs);
779
780    // 27.8.2.3 Members:
781    inline _LIBCPP_INLINE_VISIBILITY
782    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
783    inline _LIBCPP_INLINE_VISIBILITY
784    string_type str() const;
785    inline _LIBCPP_INLINE_VISIBILITY
786    void str(const string_type& __s);
787};
788
789template <class _CharT, class _Traits, class _Allocator>
790basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(ios_base::openmode __wch)
791    : basic_ostream<_CharT, _Traits>(&__sb_),
792      __sb_(__wch | ios_base::out)
793{
794}
795
796template <class _CharT, class _Traits, class _Allocator>
797basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(const string_type& __s,
798                                                                      ios_base::openmode __wch)
799    : basic_ostream<_CharT, _Traits>(&__sb_),
800      __sb_(__s, __wch | ios_base::out)
801{
802}
803
804#ifndef _LIBCPP_CXX03_LANG
805
806template <class _CharT, class _Traits, class _Allocator>
807basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(basic_ostringstream&& __rhs)
808    : basic_ostream<_CharT, _Traits>(_VSTD::move(__rhs)),
809      __sb_(_VSTD::move(__rhs.__sb_))
810{
811    basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_);
812}
813
814template <class _CharT, class _Traits, class _Allocator>
815basic_ostringstream<_CharT, _Traits, _Allocator>&
816basic_ostringstream<_CharT, _Traits, _Allocator>::operator=(basic_ostringstream&& __rhs)
817{
818    basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
819    __sb_ = _VSTD::move(__rhs.__sb_);
820    return *this;
821}
822
823#endif  // _LIBCPP_CXX03_LANG
824
825template <class _CharT, class _Traits, class _Allocator>
826void
827basic_ostringstream<_CharT, _Traits, _Allocator>::swap(basic_ostringstream& __rhs)
828{
829    basic_ostream<char_type, traits_type>::swap(__rhs);
830    __sb_.swap(__rhs.__sb_);
831}
832
833template <class _CharT, class _Traits, class _Allocator>
834inline _LIBCPP_INLINE_VISIBILITY
835void
836swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x,
837     basic_ostringstream<_CharT, _Traits, _Allocator>& __y)
838{
839    __x.swap(__y);
840}
841
842template <class _CharT, class _Traits, class _Allocator>
843basic_stringbuf<_CharT, _Traits, _Allocator>*
844basic_ostringstream<_CharT, _Traits, _Allocator>::rdbuf() const
845{
846    return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
847}
848
849template <class _CharT, class _Traits, class _Allocator>
850basic_string<_CharT, _Traits, _Allocator>
851basic_ostringstream<_CharT, _Traits, _Allocator>::str() const
852{
853    return __sb_.str();
854}
855
856template <class _CharT, class _Traits, class _Allocator>
857void
858basic_ostringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
859{
860    __sb_.str(__s);
861}
862
863// basic_stringstream
864
865template <class _CharT, class _Traits, class _Allocator>
866class _LIBCPP_TEMPLATE_VIS basic_stringstream
867    : public basic_iostream<_CharT, _Traits>
868{
869public:
870    typedef _CharT                         char_type;
871    typedef _Traits                        traits_type;
872    typedef typename traits_type::int_type int_type;
873    typedef typename traits_type::pos_type pos_type;
874    typedef typename traits_type::off_type off_type;
875    typedef _Allocator                     allocator_type;
876
877    typedef basic_string<char_type, traits_type, allocator_type> string_type;
878
879private:
880    basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
881
882public:
883    // 27.8.2.1 Constructors:
884    inline _LIBCPP_INLINE_VISIBILITY
885    explicit basic_stringstream(ios_base::openmode __wch = ios_base::in | ios_base::out);
886    inline _LIBCPP_INLINE_VISIBILITY
887    explicit basic_stringstream(const string_type& __s,
888                                ios_base::openmode __wch = ios_base::in | ios_base::out);
889#ifndef _LIBCPP_CXX03_LANG
890    inline _LIBCPP_INLINE_VISIBILITY
891    basic_stringstream(basic_stringstream&& __rhs);
892
893    // 27.8.2.2 Assign and swap:
894    basic_stringstream& operator=(basic_stringstream&& __rhs);
895#endif  // _LIBCPP_CXX03_LANG
896    inline _LIBCPP_INLINE_VISIBILITY
897    void swap(basic_stringstream& __rhs);
898
899    // 27.8.2.3 Members:
900    inline _LIBCPP_INLINE_VISIBILITY
901    basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
902    inline _LIBCPP_INLINE_VISIBILITY
903    string_type str() const;
904    inline _LIBCPP_INLINE_VISIBILITY
905    void str(const string_type& __s);
906};
907
908template <class _CharT, class _Traits, class _Allocator>
909basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(ios_base::openmode __wch)
910    : basic_iostream<_CharT, _Traits>(&__sb_),
911      __sb_(__wch)
912{
913}
914
915template <class _CharT, class _Traits, class _Allocator>
916basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(const string_type& __s,
917                                                                    ios_base::openmode __wch)
918    : basic_iostream<_CharT, _Traits>(&__sb_),
919      __sb_(__s, __wch)
920{
921}
922
923#ifndef _LIBCPP_CXX03_LANG
924
925template <class _CharT, class _Traits, class _Allocator>
926basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(basic_stringstream&& __rhs)
927    : basic_iostream<_CharT, _Traits>(_VSTD::move(__rhs)),
928      __sb_(_VSTD::move(__rhs.__sb_))
929{
930    basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
931}
932
933template <class _CharT, class _Traits, class _Allocator>
934basic_stringstream<_CharT, _Traits, _Allocator>&
935basic_stringstream<_CharT, _Traits, _Allocator>::operator=(basic_stringstream&& __rhs)
936{
937    basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
938    __sb_ = _VSTD::move(__rhs.__sb_);
939    return *this;
940}
941
942#endif  // _LIBCPP_CXX03_LANG
943
944template <class _CharT, class _Traits, class _Allocator>
945void
946basic_stringstream<_CharT, _Traits, _Allocator>::swap(basic_stringstream& __rhs)
947{
948    basic_iostream<char_type, traits_type>::swap(__rhs);
949    __sb_.swap(__rhs.__sb_);
950}
951
952template <class _CharT, class _Traits, class _Allocator>
953inline _LIBCPP_INLINE_VISIBILITY
954void
955swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x,
956     basic_stringstream<_CharT, _Traits, _Allocator>& __y)
957{
958    __x.swap(__y);
959}
960
961template <class _CharT, class _Traits, class _Allocator>
962basic_stringbuf<_CharT, _Traits, _Allocator>*
963basic_stringstream<_CharT, _Traits, _Allocator>::rdbuf() const
964{
965    return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
966}
967
968template <class _CharT, class _Traits, class _Allocator>
969basic_string<_CharT, _Traits, _Allocator>
970basic_stringstream<_CharT, _Traits, _Allocator>::str() const
971{
972    return __sb_.str();
973}
974
975template <class _CharT, class _Traits, class _Allocator>
976void
977basic_stringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
978{
979    __sb_.str(__s);
980}
981
982_LIBCPP_END_NAMESPACE_STD
983
984_LIBCPP_POP_MACROS
985
986#endif  // _LIBCPP_SSTREAM
987