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iomanip File Reference
#include <bits/c++config.h>
#include <iosfwd>
#include <bits/ios_base.h>

Macros

#define _GLIBCXX_IOMANIP   1
 

Functions

namespace std _GLIBCXX_VISIBILITY (default)
 

Macro Definition Documentation

#define _GLIBCXX_IOMANIP   1

Function Documentation

namespace std _GLIBCXX_VISIBILITY ( default  )

Manipulator for setf.

Parameters
__maskA format flags mask.

Sent to a stream object, this manipulator resets the specified flags, via stream.setf(0,__mask).

Manipulator for setf.

Parameters
__maskA format flags mask.

Sent to a stream object, this manipulator sets the format flags to __mask.

Manipulator for setf.

Parameters
__baseA numeric base.

Sent to a stream object, this manipulator changes the ios_base::basefield flags to oct, dec, or hex when base is 8, 10, or 16, accordingly, and to 0 if __base is any other value.

Manipulator for fill.

Parameters
__cThe new fill character.

Sent to a stream object, this manipulator calls fill(__c) for that object.

Manipulator for precision.

Parameters
__nThe new precision.

Sent to a stream object, this manipulator calls precision(__n) for that object.

Manipulator for width.

Parameters
__nThe new width.

Sent to a stream object, this manipulator calls width(__n) for that object.

47 {
48 _GLIBCXX_BEGIN_NAMESPACE_VERSION
49 
50  // [27.6.3] standard manipulators
51  // Also see DR 183.
52 
53  struct _Resetiosflags { ios_base::fmtflags _M_mask; };
54 
62  inline _Resetiosflags
63  resetiosflags(ios_base::fmtflags __mask)
64  { return { __mask }; }
65 
66  template<typename _CharT, typename _Traits>
67  inline basic_istream<_CharT, _Traits>&
68  operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
69  {
70  __is.setf(ios_base::fmtflags(0), __f._M_mask);
71  return __is;
72  }
73 
74  template<typename _CharT, typename _Traits>
75  inline basic_ostream<_CharT, _Traits>&
76  operator<<(basic_ostream<_CharT, _Traits>& __os, _Resetiosflags __f)
77  {
78  __os.setf(ios_base::fmtflags(0), __f._M_mask);
79  return __os;
80  }
81 
82 
83  struct _Setiosflags { ios_base::fmtflags _M_mask; };
84 
92  inline _Setiosflags
93  setiosflags(ios_base::fmtflags __mask)
94  { return { __mask }; }
95 
96  template<typename _CharT, typename _Traits>
97  inline basic_istream<_CharT, _Traits>&
98  operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
99  {
100  __is.setf(__f._M_mask);
101  return __is;
102  }
103 
104  template<typename _CharT, typename _Traits>
105  inline basic_ostream<_CharT, _Traits>&
106  operator<<(basic_ostream<_CharT, _Traits>& __os, _Setiosflags __f)
107  {
108  __os.setf(__f._M_mask);
109  return __os;
110  }
111 
112 
113  struct _Setbase { int _M_base; };
114 
123  inline _Setbase
124  setbase(int __base)
125  { return { __base }; }
126 
127  template<typename _CharT, typename _Traits>
128  inline basic_istream<_CharT, _Traits>&
129  operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
130  {
131  __is.setf(__f._M_base == 8 ? ios_base::oct :
132  __f._M_base == 10 ? ios_base::dec :
133  __f._M_base == 16 ? ios_base::hex :
134  ios_base::fmtflags(0), ios_base::basefield);
135  return __is;
136  }
137 
138  template<typename _CharT, typename _Traits>
139  inline basic_ostream<_CharT, _Traits>&
140  operator<<(basic_ostream<_CharT, _Traits>& __os, _Setbase __f)
141  {
142  __os.setf(__f._M_base == 8 ? ios_base::oct :
143  __f._M_base == 10 ? ios_base::dec :
144  __f._M_base == 16 ? ios_base::hex :
145  ios_base::fmtflags(0), ios_base::basefield);
146  return __os;
147  }
148 
149 
150  template<typename _CharT>
151  struct _Setfill { _CharT _M_c; };
152 
160  template<typename _CharT>
161  inline _Setfill<_CharT>
162  setfill(_CharT __c)
163  { return { __c }; }
164 
165  template<typename _CharT, typename _Traits>
166  inline basic_istream<_CharT, _Traits>&
167  operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
168  {
169  __is.fill(__f._M_c);
170  return __is;
171  }
172 
173  template<typename _CharT, typename _Traits>
174  inline basic_ostream<_CharT, _Traits>&
175  operator<<(basic_ostream<_CharT, _Traits>& __os, _Setfill<_CharT> __f)
176  {
177  __os.fill(__f._M_c);
178  return __os;
179  }
180 
181 
182  struct _Setprecision { int _M_n; };
183 
191  inline _Setprecision
192  setprecision(int __n)
193  { return { __n }; }
194 
195  template<typename _CharT, typename _Traits>
196  inline basic_istream<_CharT, _Traits>&
197  operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
198  {
199  __is.precision(__f._M_n);
200  return __is;
201  }
202 
203  template<typename _CharT, typename _Traits>
204  inline basic_ostream<_CharT, _Traits>&
205  operator<<(basic_ostream<_CharT, _Traits>& __os, _Setprecision __f)
206  {
207  __os.precision(__f._M_n);
208  return __os;
209  }
210 
211 
212  struct _Setw { int _M_n; };
213 
221  inline _Setw
222  setw(int __n)
223  { return { __n }; }
224 
225  template<typename _CharT, typename _Traits>
226  inline basic_istream<_CharT, _Traits>&
227  operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
228  {
229  __is.width(__f._M_n);
230  return __is;
231  }
232 
233  template<typename _CharT, typename _Traits>
234  inline basic_ostream<_CharT, _Traits>&
235  operator<<(basic_ostream<_CharT, _Traits>& __os, _Setw __f)
236  {
237  __os.width(__f._M_n);
238  return __os;
239  }
240 
241 #if __cplusplus >= 201103L
242 
243  template<typename _MoneyT>
244  struct _Get_money { _MoneyT& _M_mon; bool _M_intl; };
245 
254  template<typename _MoneyT>
255  inline _Get_money<_MoneyT>
256  get_money(_MoneyT& __mon, bool __intl = false)
257  { return { __mon, __intl }; }
258 
259  template<typename _CharT, typename _Traits, typename _MoneyT>
260  basic_istream<_CharT, _Traits>&
261  operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
262  {
263  typename basic_istream<_CharT, _Traits>::sentry __cerb(__is, false);
264  if (__cerb)
265  {
266  ios_base::iostate __err = ios_base::goodbit;
267  __try
268  {
269  typedef istreambuf_iterator<_CharT, _Traits> _Iter;
270  typedef money_get<_CharT, _Iter> _MoneyGet;
271 
272  const _MoneyGet& __mg = use_facet<_MoneyGet>(__is.getloc());
273  __mg.get(_Iter(__is.rdbuf()), _Iter(), __f._M_intl,
274  __is, __err, __f._M_mon);
275  }
276  __catch(__cxxabiv1::__forced_unwind&)
277  {
278  __is._M_setstate(ios_base::badbit);
279  __throw_exception_again;
280  }
281  __catch(...)
282  { __is._M_setstate(ios_base::badbit); }
283  if (__err)
284  __is.setstate(__err);
285  }
286  return __is;
287  }
288 
289 
290  template<typename _MoneyT>
291  struct _Put_money { const _MoneyT& _M_mon; bool _M_intl; };
292 
301  template<typename _MoneyT>
302  inline _Put_money<_MoneyT>
303  put_money(const _MoneyT& __mon, bool __intl = false)
304  { return { __mon, __intl }; }
305 
306  template<typename _CharT, typename _Traits, typename _MoneyT>
307  basic_ostream<_CharT, _Traits>&
308  operator<<(basic_ostream<_CharT, _Traits>& __os, _Put_money<_MoneyT> __f)
309  {
310  typename basic_ostream<_CharT, _Traits>::sentry __cerb(__os);
311  if (__cerb)
312  {
313  ios_base::iostate __err = ios_base::goodbit;
314  __try
315  {
316  typedef ostreambuf_iterator<_CharT, _Traits> _Iter;
317  typedef money_put<_CharT, _Iter> _MoneyPut;
318 
319  const _MoneyPut& __mp = use_facet<_MoneyPut>(__os.getloc());
320  if (__mp.put(_Iter(__os.rdbuf()), __f._M_intl, __os,
321  __os.fill(), __f._M_mon).failed())
322  __err |= ios_base::badbit;
323  }
324  __catch(__cxxabiv1::__forced_unwind&)
325  {
326  __os._M_setstate(ios_base::badbit);
327  __throw_exception_again;
328  }
329  __catch(...)
330  { __os._M_setstate(ios_base::badbit); }
331  if (__err)
332  __os.setstate(__err);
333  }
334  return __os;
335  }
336 
337 #endif
338 
339  // Inhibit implicit instantiations for required instantiations,
340  // which are defined via explicit instantiations elsewhere.
341  // NB: This syntax is a GNU extension.
342 #if _GLIBCXX_EXTERN_TEMPLATE
343  extern template ostream& operator<<(ostream&, _Setfill<char>);
344  extern template ostream& operator<<(ostream&, _Setiosflags);
345  extern template ostream& operator<<(ostream&, _Resetiosflags);
346  extern template ostream& operator<<(ostream&, _Setbase);
347  extern template ostream& operator<<(ostream&, _Setprecision);
348  extern template ostream& operator<<(ostream&, _Setw);
349  extern template istream& operator>>(istream&, _Setfill<char>);
350  extern template istream& operator>>(istream&, _Setiosflags);
351  extern template istream& operator>>(istream&, _Resetiosflags);
352  extern template istream& operator>>(istream&, _Setbase);
353  extern template istream& operator>>(istream&, _Setprecision);
354  extern template istream& operator>>(istream&, _Setw);
355 
356 #ifdef _GLIBCXX_USE_WCHAR_T
357  extern template wostream& operator<<(wostream&, _Setfill<wchar_t>);
358  extern template wostream& operator<<(wostream&, _Setiosflags);
359  extern template wostream& operator<<(wostream&, _Resetiosflags);
360  extern template wostream& operator<<(wostream&, _Setbase);
361  extern template wostream& operator<<(wostream&, _Setprecision);
362  extern template wostream& operator<<(wostream&, _Setw);
363  extern template wistream& operator>>(wistream&, _Setfill<wchar_t>);
364  extern template wistream& operator>>(wistream&, _Setiosflags);
365  extern template wistream& operator>>(wistream&, _Resetiosflags);
366  extern template wistream& operator>>(wistream&, _Setbase);
367  extern template wistream& operator>>(wistream&, _Setprecision);
368  extern template wistream& operator>>(wistream&, _Setw);
369 #endif
370 #endif
371 
372 _GLIBCXX_END_NAMESPACE_VERSION
373 } // namespace
__gnu_debug::__base
_Siter_base< _Iterator >::iterator_type __base(_Iterator __it)
Definition: functions.h:446
__try
#define __try
Definition: exception_defines.h:35
__throw_exception_again
#define __throw_exception_again
Definition: exception_defines.h:37
__gnu_debug::operator>>
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, basic_string< _CharT, _Traits, _Allocator > &__str)
Definition: string:1122
__gnu_debug::operator<<
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const basic_string< _CharT, _Traits, _Allocator > &__str)
Definition: string:1116
__catch
#define __catch(X)
Definition: exception_defines.h:36
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