1 // Iostreams base classes -*- C++ -*-
3 // Copyright (C) 1997-2018 Free Software Foundation, Inc.
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)
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.
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.
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/>.
25 /** @file bits/ios_base.h
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{ios}
31 // ISO C++ 14882: 27.4 Iostreams base classes
37 #pragma GCC system_header
39 #include <ext/atomicity.h>
40 #include <bits/localefwd.h>
41 #include <bits/locale_classes.h>
43 #if __cplusplus < 201103L
46 # include <system_error>
49 namespace std
_GLIBCXX_VISIBILITY(default)
51 _GLIBCXX_BEGIN_NAMESPACE_VERSION
53 // The following definitions of bitmask types are enums, not ints,
54 // as permitted (but not required) in the standard, in order to provide
55 // better type safety in iostream calls. A side effect is that in C++98
56 // expressions involving them are not compile-time constants.
59 _S_boolalpha
= 1L << 0,
63 _S_internal
= 1L << 4,
67 _S_scientific
= 1L << 8,
68 _S_showbase
= 1L << 9,
69 _S_showpoint
= 1L << 10,
70 _S_showpos
= 1L << 11,
72 _S_unitbuf
= 1L << 13,
73 _S_uppercase
= 1L << 14,
74 _S_adjustfield
= _S_left
| _S_right
| _S_internal
,
75 _S_basefield
= _S_dec
| _S_oct
| _S_hex
,
76 _S_floatfield
= _S_scientific
| _S_fixed
,
77 _S_ios_fmtflags_end
= 1L << 16,
78 _S_ios_fmtflags_max
= __INT_MAX__
,
79 _S_ios_fmtflags_min
= ~__INT_MAX__
82 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
83 operator&(_Ios_Fmtflags __a
, _Ios_Fmtflags __b
)
84 { return _Ios_Fmtflags(static_cast<int>(__a
) & static_cast<int>(__b
)); }
86 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
87 operator|(_Ios_Fmtflags __a
, _Ios_Fmtflags __b
)
88 { return _Ios_Fmtflags(static_cast<int>(__a
) | static_cast<int>(__b
)); }
90 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
91 operator^(_Ios_Fmtflags __a
, _Ios_Fmtflags __b
)
92 { return _Ios_Fmtflags(static_cast<int>(__a
) ^ static_cast<int>(__b
)); }
94 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
95 operator~(_Ios_Fmtflags __a
)
96 { return _Ios_Fmtflags(~static_cast<int>(__a
)); }
98 inline const _Ios_Fmtflags
&
99 operator|=(_Ios_Fmtflags
& __a
, _Ios_Fmtflags __b
)
100 { return __a
= __a
| __b
; }
102 inline const _Ios_Fmtflags
&
103 operator&=(_Ios_Fmtflags
& __a
, _Ios_Fmtflags __b
)
104 { return __a
= __a
& __b
; }
106 inline const _Ios_Fmtflags
&
107 operator^=(_Ios_Fmtflags
& __a
, _Ios_Fmtflags __b
)
108 { return __a
= __a
^ __b
; }
119 _S_ios_openmode_end
= 1L << 16,
120 _S_ios_openmode_max
= __INT_MAX__
,
121 _S_ios_openmode_min
= ~__INT_MAX__
124 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
125 operator&(_Ios_Openmode __a
, _Ios_Openmode __b
)
126 { return _Ios_Openmode(static_cast<int>(__a
) & static_cast<int>(__b
)); }
128 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
129 operator|(_Ios_Openmode __a
, _Ios_Openmode __b
)
130 { return _Ios_Openmode(static_cast<int>(__a
) | static_cast<int>(__b
)); }
132 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
133 operator^(_Ios_Openmode __a
, _Ios_Openmode __b
)
134 { return _Ios_Openmode(static_cast<int>(__a
) ^ static_cast<int>(__b
)); }
136 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
137 operator~(_Ios_Openmode __a
)
138 { return _Ios_Openmode(~static_cast<int>(__a
)); }
140 inline const _Ios_Openmode
&
141 operator|=(_Ios_Openmode
& __a
, _Ios_Openmode __b
)
142 { return __a
= __a
| __b
; }
144 inline const _Ios_Openmode
&
145 operator&=(_Ios_Openmode
& __a
, _Ios_Openmode __b
)
146 { return __a
= __a
& __b
; }
148 inline const _Ios_Openmode
&
149 operator^=(_Ios_Openmode
& __a
, _Ios_Openmode __b
)
150 { return __a
= __a
^ __b
; }
158 _S_failbit
= 1L << 2,
159 _S_ios_iostate_end
= 1L << 16,
160 _S_ios_iostate_max
= __INT_MAX__
,
161 _S_ios_iostate_min
= ~__INT_MAX__
164 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
165 operator&(_Ios_Iostate __a
, _Ios_Iostate __b
)
166 { return _Ios_Iostate(static_cast<int>(__a
) & static_cast<int>(__b
)); }
168 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
169 operator|(_Ios_Iostate __a
, _Ios_Iostate __b
)
170 { return _Ios_Iostate(static_cast<int>(__a
) | static_cast<int>(__b
)); }
172 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
173 operator^(_Ios_Iostate __a
, _Ios_Iostate __b
)
174 { return _Ios_Iostate(static_cast<int>(__a
) ^ static_cast<int>(__b
)); }
176 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
177 operator~(_Ios_Iostate __a
)
178 { return _Ios_Iostate(~static_cast<int>(__a
)); }
180 inline const _Ios_Iostate
&
181 operator|=(_Ios_Iostate
& __a
, _Ios_Iostate __b
)
182 { return __a
= __a
| __b
; }
184 inline const _Ios_Iostate
&
185 operator&=(_Ios_Iostate
& __a
, _Ios_Iostate __b
)
186 { return __a
= __a
& __b
; }
188 inline const _Ios_Iostate
&
189 operator^=(_Ios_Iostate
& __a
, _Ios_Iostate __b
)
190 { return __a
= __a
^ __b
; }
196 _S_cur
= _GLIBCXX_STDIO_SEEK_CUR
,
197 _S_end
= _GLIBCXX_STDIO_SEEK_END
,
198 _S_ios_seekdir_end
= 1L << 16
201 #if __cplusplus >= 201103L
203 enum class io_errc
{ stream
= 1 };
205 template <> struct is_error_code_enum
<io_errc
> : public true_type
{ };
207 const error_category
& iostream_category() noexcept
;
210 make_error_code(io_errc __e
) noexcept
211 { return error_code(static_cast<int>(__e
), iostream_category()); }
213 inline error_condition
214 make_error_condition(io_errc __e
) noexcept
215 { return error_condition(static_cast<int>(__e
), iostream_category()); }
218 // 27.4.2 Class ios_base
220 * @brief The base of the I/O class hierarchy.
223 * This class defines everything that can be defined about I/O that does
224 * not depend on the type of characters being input or output. Most
225 * people will only see @c ios_base when they need to specify the full
226 * name of the various I/O flags (e.g., the openmodes).
230 #if _GLIBCXX_USE_CXX11_ABI
231 #if __cplusplus < 201103L
232 // Type that is layout-compatible with std::system_error
233 struct system_error
: std::runtime_error
235 // Type that is layout-compatible with std::error_code
249 * @brief These are thrown to indicate problems with io.
250 * @ingroup exceptions
252 * 27.4.2.1.1 Class ios_base::failure
254 #if _GLIBCXX_USE_CXX11_ABI
255 class _GLIBCXX_ABI_TAG_CXX11 failure
: public system_error
259 failure(const string
& __str
);
261 #if __cplusplus >= 201103L
263 failure(const string
&, const error_code
&);
266 failure(const char*, const error_code
& = io_errc::stream
);
273 what() const throw();
276 class failure
: public exception
279 // _GLIBCXX_RESOLVE_LIB_DEFECTS
280 // 48. Use of non-existent exception constructor
282 failure(const string
& __str
) throw();
284 // This declaration is not useless:
285 // http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Vague-Linkage.html
290 what() const throw();
297 // 27.4.2.1.2 Type ios_base::fmtflags
299 * @brief This is a bitmask type.
301 * @c @a _Ios_Fmtflags is implementation-defined, but it is valid to
302 * perform bitwise operations on these values and expect the Right
303 * Thing to happen. Defined objects of type fmtflags are:
323 typedef _Ios_Fmtflags fmtflags
;
325 /// Insert/extract @c bool in alphabetic rather than numeric format.
326 static const fmtflags boolalpha
= _S_boolalpha
;
328 /// Converts integer input or generates integer output in decimal base.
329 static const fmtflags dec
= _S_dec
;
331 /// Generate floating-point output in fixed-point notation.
332 static const fmtflags fixed
= _S_fixed
;
334 /// Converts integer input or generates integer output in hexadecimal base.
335 static const fmtflags hex
= _S_hex
;
337 /// Adds fill characters at a designated internal point in certain
338 /// generated output, or identical to @c right if no such point is
340 static const fmtflags internal
= _S_internal
;
342 /// Adds fill characters on the right (final positions) of certain
343 /// generated output. (I.e., the thing you print is flush left.)
344 static const fmtflags left
= _S_left
;
346 /// Converts integer input or generates integer output in octal base.
347 static const fmtflags oct
= _S_oct
;
349 /// Adds fill characters on the left (initial positions) of certain
350 /// generated output. (I.e., the thing you print is flush right.)
351 static const fmtflags right
= _S_right
;
353 /// Generates floating-point output in scientific notation.
354 static const fmtflags scientific
= _S_scientific
;
356 /// Generates a prefix indicating the numeric base of generated integer
358 static const fmtflags showbase
= _S_showbase
;
360 /// Generates a decimal-point character unconditionally in generated
361 /// floating-point output.
362 static const fmtflags showpoint
= _S_showpoint
;
364 /// Generates a + sign in non-negative generated numeric output.
365 static const fmtflags showpos
= _S_showpos
;
367 /// Skips leading white space before certain input operations.
368 static const fmtflags skipws
= _S_skipws
;
370 /// Flushes output after each output operation.
371 static const fmtflags unitbuf
= _S_unitbuf
;
373 /// Replaces certain lowercase letters with their uppercase equivalents
374 /// in generated output.
375 static const fmtflags uppercase
= _S_uppercase
;
377 /// A mask of left|right|internal. Useful for the 2-arg form of @c setf.
378 static const fmtflags adjustfield
= _S_adjustfield
;
380 /// A mask of dec|oct|hex. Useful for the 2-arg form of @c setf.
381 static const fmtflags basefield
= _S_basefield
;
383 /// A mask of scientific|fixed. Useful for the 2-arg form of @c setf.
384 static const fmtflags floatfield
= _S_floatfield
;
386 // 27.4.2.1.3 Type ios_base::iostate
388 * @brief This is a bitmask type.
390 * @c @a _Ios_Iostate is implementation-defined, but it is valid to
391 * perform bitwise operations on these values and expect the Right
392 * Thing to happen. Defined objects of type iostate are:
398 typedef _Ios_Iostate iostate
;
400 /// Indicates a loss of integrity in an input or output sequence (such
401 /// as an irrecoverable read error from a file).
402 static const iostate badbit
= _S_badbit
;
404 /// Indicates that an input operation reached the end of an input sequence.
405 static const iostate eofbit
= _S_eofbit
;
407 /// Indicates that an input operation failed to read the expected
408 /// characters, or that an output operation failed to generate the
409 /// desired characters.
410 static const iostate failbit
= _S_failbit
;
412 /// Indicates all is well.
413 static const iostate goodbit
= _S_goodbit
;
415 // 27.4.2.1.4 Type ios_base::openmode
417 * @brief This is a bitmask type.
419 * @c @a _Ios_Openmode is implementation-defined, but it is valid to
420 * perform bitwise operations on these values and expect the Right
421 * Thing to happen. Defined objects of type openmode are:
429 typedef _Ios_Openmode openmode
;
431 /// Seek to end before each write.
432 static const openmode app
= _S_app
;
434 /// Open and seek to end immediately after opening.
435 static const openmode ate
= _S_ate
;
437 /// Perform input and output in binary mode (as opposed to text mode).
438 /// This is probably not what you think it is; see
439 /// https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary
440 static const openmode binary
= _S_bin
;
442 /// Open for input. Default for @c ifstream and fstream.
443 static const openmode in
= _S_in
;
445 /// Open for output. Default for @c ofstream and fstream.
446 static const openmode out
= _S_out
;
448 /// Open for input. Default for @c ofstream.
449 static const openmode trunc
= _S_trunc
;
451 // 27.4.2.1.5 Type ios_base::seekdir
453 * @brief This is an enumerated type.
455 * @c @a _Ios_Seekdir is implementation-defined. Defined values
456 * of type seekdir are:
458 * - cur, equivalent to @c SEEK_CUR in the C standard library.
459 * - end, equivalent to @c SEEK_END in the C standard library.
461 typedef _Ios_Seekdir seekdir
;
463 /// Request a seek relative to the beginning of the stream.
464 static const seekdir beg
= _S_beg
;
466 /// Request a seek relative to the current position within the sequence.
467 static const seekdir cur
= _S_cur
;
469 /// Request a seek relative to the current end of the sequence.
470 static const seekdir end
= _S_end
;
472 #if __cplusplus <= 201402L
473 // Annex D.6 (removed in C++17)
474 typedef int io_state
;
475 typedef int open_mode
;
476 typedef int seek_dir
;
478 typedef std::streampos streampos
;
479 typedef std::streamoff streamoff
;
484 * @brief The set of events that may be passed to an event callback.
486 * erase_event is used during ~ios() and copyfmt(). imbue_event is used
487 * during imbue(). copyfmt_event is used during copyfmt().
497 * @brief The type of an event callback function.
498 * @param __e One of the members of the event enum.
499 * @param __b Reference to the ios_base object.
500 * @param __i The integer provided when the callback was registered.
502 * Event callbacks are user defined functions that get called during
503 * several ios_base and basic_ios functions, specifically imbue(),
504 * copyfmt(), and ~ios().
506 typedef void (*event_callback
) (event __e
, ios_base
& __b
, int __i
);
509 * @brief Add the callback __fn with parameter __index.
510 * @param __fn The function to add.
511 * @param __index The integer to pass to the function when invoked.
513 * Registers a function as an event callback with an integer parameter to
514 * be passed to the function when invoked. Multiple copies of the
515 * function are allowed. If there are multiple callbacks, they are
516 * invoked in the order they were registered.
519 register_callback(event_callback __fn
, int __index
);
522 streamsize _M_precision
;
525 iostate _M_exception
;
526 iostate _M_streambuf_state
;
528 // 27.4.2.6 Members for callbacks
529 // 27.4.2.6 ios_base callbacks
530 struct _Callback_list
533 _Callback_list
* _M_next
;
534 ios_base::event_callback _M_fn
;
536 _Atomic_word _M_refcount
; // 0 means one reference.
538 _Callback_list(ios_base::event_callback __fn
, int __index
,
539 _Callback_list
* __cb
)
540 : _M_next(__cb
), _M_fn(__fn
), _M_index(__index
), _M_refcount(0) { }
543 _M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount
, 1); }
545 // 0 => OK to delete.
547 _M_remove_reference()
549 // Be race-detector-friendly. For more info see bits/c++config.
550 _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount
);
551 int __res
= __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount
, -1);
554 _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount
);
560 _Callback_list
* _M_callbacks
;
563 _M_call_callbacks(event __ev
) throw();
566 _M_dispose_callbacks(void) throw();
568 // 27.4.2.5 Members for iword/pword storage
573 _Words() : _M_pword(0), _M_iword(0) { }
576 // Only for failed iword/pword calls.
579 // Guaranteed storage.
580 // The first 5 iword and pword slots are reserved for internal use.
581 enum { _S_local_word_size
= 8 };
582 _Words _M_local_word
[_S_local_word_size
];
584 // Allocated storage.
589 _M_grow_words(int __index
, bool __iword
);
591 // Members for locale and locale caching.
592 locale _M_ios_locale
;
599 // 27.4.2.1.6 Class ios_base::Init
600 // Used to initialize standard streams. In theory, g++ could use
601 // -finit-priority to order this stuff correctly without going
602 // through these machinations.
605 friend class ios_base
;
611 static _Atomic_word _S_refcount
;
612 static bool _S_synced_with_stdio
;
615 // [27.4.2.2] fmtflags state functions
617 * @brief Access to format flags.
618 * @return The format control flags for both input and output.
625 * @brief Setting new format flags all at once.
626 * @param __fmtfl The new flags to set.
627 * @return The previous format control flags.
629 * This function overwrites all the format flags with @a __fmtfl.
632 flags(fmtflags __fmtfl
)
634 fmtflags __old
= _M_flags
;
640 * @brief Setting new format flags.
641 * @param __fmtfl Additional flags to set.
642 * @return The previous format control flags.
644 * This function sets additional flags in format control. Flags that
645 * were previously set remain set.
648 setf(fmtflags __fmtfl
)
650 fmtflags __old
= _M_flags
;
656 * @brief Setting new format flags.
657 * @param __fmtfl Additional flags to set.
658 * @param __mask The flags mask for @a fmtfl.
659 * @return The previous format control flags.
661 * This function clears @a mask in the format flags, then sets
662 * @a fmtfl @c & @a mask. An example mask is @c ios_base::adjustfield.
665 setf(fmtflags __fmtfl
, fmtflags __mask
)
667 fmtflags __old
= _M_flags
;
669 _M_flags
|= (__fmtfl
& __mask
);
674 * @brief Clearing format flags.
675 * @param __mask The flags to unset.
677 * This function clears @a __mask in the format flags.
680 unsetf(fmtflags __mask
)
681 { _M_flags
&= ~__mask
; }
684 * @brief Flags access.
685 * @return The precision to generate on certain output operations.
687 * Be careful if you try to give a definition of @a precision here; see
692 { return _M_precision
; }
695 * @brief Changing flags.
696 * @param __prec The new precision value.
697 * @return The previous value of precision().
700 precision(streamsize __prec
)
702 streamsize __old
= _M_precision
;
703 _M_precision
= __prec
;
708 * @brief Flags access.
709 * @return The minimum field width to generate on output operations.
711 * <em>Minimum field width</em> refers to the number of characters.
718 * @brief Changing flags.
719 * @param __wide The new width value.
720 * @return The previous value of width().
723 width(streamsize __wide
)
725 streamsize __old
= _M_width
;
730 // [27.4.2.4] ios_base static members
732 * @brief Interaction with the standard C I/O objects.
733 * @param __sync Whether to synchronize or not.
734 * @return True if the standard streams were previously synchronized.
736 * The synchronization referred to is @e only that between the standard
737 * C facilities (e.g., stdout) and the standard C++ objects (e.g.,
738 * cout). User-declared streams are unaffected. See
739 * https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary
742 sync_with_stdio(bool __sync
= true);
744 // [27.4.2.3] ios_base locale functions
746 * @brief Setting a new locale.
747 * @param __loc The new locale.
748 * @return The previous locale.
750 * Sets the new locale for this stream, and then invokes each callback
754 imbue(const locale
& __loc
) throw();
757 * @brief Locale access
758 * @return A copy of the current locale.
760 * If @c imbue(loc) has previously been called, then this function
761 * returns @c loc. Otherwise, it returns a copy of @c std::locale(),
762 * the global C++ locale.
766 { return _M_ios_locale
; }
769 * @brief Locale access
770 * @return A reference to the current locale.
772 * Like getloc above, but returns a reference instead of
777 { return _M_ios_locale
; }
779 // [27.4.2.5] ios_base storage functions
781 * @brief Access to unique indices.
782 * @return An integer different from all previous calls.
784 * This function returns a unique integer every time it is called. It
785 * can be used for any purpose, but is primarily intended to be a unique
786 * index for the iword and pword functions. The expectation is that an
787 * application calls xalloc in order to obtain an index in the iword and
788 * pword arrays that can be used without fear of conflict.
790 * The implementation maintains a static variable that is incremented and
791 * returned on each invocation. xalloc is guaranteed to return an index
792 * that is safe to use in the iword and pword arrays.
798 * @brief Access to integer array.
799 * @param __ix Index into the array.
800 * @return A reference to an integer associated with the index.
802 * The iword function provides access to an array of integers that can be
803 * used for any purpose. The array grows as required to hold the
804 * supplied index. All integers in the array are initialized to 0.
806 * The implementation reserves several indices. You should use xalloc to
807 * obtain an index that is safe to use. Also note that since the array
808 * can grow dynamically, it is not safe to hold onto the reference.
813 _Words
& __word
= (__ix
< _M_word_size
)
814 ? _M_word
[__ix
] : _M_grow_words(__ix
, true);
815 return __word
._M_iword
;
819 * @brief Access to void pointer array.
820 * @param __ix Index into the array.
821 * @return A reference to a void* associated with the index.
823 * The pword function provides access to an array of pointers that can be
824 * used for any purpose. The array grows as required to hold the
825 * supplied index. All pointers in the array are initialized to 0.
827 * The implementation reserves several indices. You should use xalloc to
828 * obtain an index that is safe to use. Also note that since the array
829 * can grow dynamically, it is not safe to hold onto the reference.
834 _Words
& __word
= (__ix
< _M_word_size
)
835 ? _M_word
[__ix
] : _M_grow_words(__ix
, false);
836 return __word
._M_pword
;
841 * Invokes each callback with erase_event. Destroys local storage.
843 * Note that the ios_base object for the standard streams never gets
844 * destroyed. As a result, any callbacks registered with the standard
845 * streams will not get invoked with erase_event (unless copyfmt is
853 #if __cplusplus < 201103L
854 // _GLIBCXX_RESOLVE_LIB_DEFECTS
855 // 50. Copy constructor and assignment operator of ios_base
857 ios_base(const ios_base
&);
860 operator=(const ios_base
&);
863 ios_base(const ios_base
&) = delete;
866 operator=(const ios_base
&) = delete;
870 _M_move(ios_base
&) noexcept
;
873 _M_swap(ios_base
& __rhs
) noexcept
;
877 // [27.4.5.1] fmtflags manipulators
878 /// Calls base.setf(ios_base::boolalpha).
880 boolalpha(ios_base
& __base
)
882 __base
.setf(ios_base::boolalpha
);
886 /// Calls base.unsetf(ios_base::boolalpha).
888 noboolalpha(ios_base
& __base
)
890 __base
.unsetf(ios_base::boolalpha
);
894 /// Calls base.setf(ios_base::showbase).
896 showbase(ios_base
& __base
)
898 __base
.setf(ios_base::showbase
);
902 /// Calls base.unsetf(ios_base::showbase).
904 noshowbase(ios_base
& __base
)
906 __base
.unsetf(ios_base::showbase
);
910 /// Calls base.setf(ios_base::showpoint).
912 showpoint(ios_base
& __base
)
914 __base
.setf(ios_base::showpoint
);
918 /// Calls base.unsetf(ios_base::showpoint).
920 noshowpoint(ios_base
& __base
)
922 __base
.unsetf(ios_base::showpoint
);
926 /// Calls base.setf(ios_base::showpos).
928 showpos(ios_base
& __base
)
930 __base
.setf(ios_base::showpos
);
934 /// Calls base.unsetf(ios_base::showpos).
936 noshowpos(ios_base
& __base
)
938 __base
.unsetf(ios_base::showpos
);
942 /// Calls base.setf(ios_base::skipws).
944 skipws(ios_base
& __base
)
946 __base
.setf(ios_base::skipws
);
950 /// Calls base.unsetf(ios_base::skipws).
952 noskipws(ios_base
& __base
)
954 __base
.unsetf(ios_base::skipws
);
958 /// Calls base.setf(ios_base::uppercase).
960 uppercase(ios_base
& __base
)
962 __base
.setf(ios_base::uppercase
);
966 /// Calls base.unsetf(ios_base::uppercase).
968 nouppercase(ios_base
& __base
)
970 __base
.unsetf(ios_base::uppercase
);
974 /// Calls base.setf(ios_base::unitbuf).
976 unitbuf(ios_base
& __base
)
978 __base
.setf(ios_base::unitbuf
);
982 /// Calls base.unsetf(ios_base::unitbuf).
984 nounitbuf(ios_base
& __base
)
986 __base
.unsetf(ios_base::unitbuf
);
990 // [27.4.5.2] adjustfield manipulators
991 /// Calls base.setf(ios_base::internal, ios_base::adjustfield).
993 internal(ios_base
& __base
)
995 __base
.setf(ios_base::internal
, ios_base::adjustfield
);
999 /// Calls base.setf(ios_base::left, ios_base::adjustfield).
1001 left(ios_base
& __base
)
1003 __base
.setf(ios_base::left
, ios_base::adjustfield
);
1007 /// Calls base.setf(ios_base::right, ios_base::adjustfield).
1009 right(ios_base
& __base
)
1011 __base
.setf(ios_base::right
, ios_base::adjustfield
);
1015 // [27.4.5.3] basefield manipulators
1016 /// Calls base.setf(ios_base::dec, ios_base::basefield).
1018 dec(ios_base
& __base
)
1020 __base
.setf(ios_base::dec
, ios_base::basefield
);
1024 /// Calls base.setf(ios_base::hex, ios_base::basefield).
1026 hex(ios_base
& __base
)
1028 __base
.setf(ios_base::hex
, ios_base::basefield
);
1032 /// Calls base.setf(ios_base::oct, ios_base::basefield).
1034 oct(ios_base
& __base
)
1036 __base
.setf(ios_base::oct
, ios_base::basefield
);
1040 // [27.4.5.4] floatfield manipulators
1041 /// Calls base.setf(ios_base::fixed, ios_base::floatfield).
1043 fixed(ios_base
& __base
)
1045 __base
.setf(ios_base::fixed
, ios_base::floatfield
);
1049 /// Calls base.setf(ios_base::scientific, ios_base::floatfield).
1051 scientific(ios_base
& __base
)
1053 __base
.setf(ios_base::scientific
, ios_base::floatfield
);
1057 #if __cplusplus >= 201103L
1058 // New C++11 floatfield manipulators
1061 /// base.setf(ios_base::fixed|ios_base::scientific, ios_base::floatfield)
1063 hexfloat(ios_base
& __base
)
1065 __base
.setf(ios_base::fixed
| ios_base::scientific
, ios_base::floatfield
);
1069 /// Calls @c base.unsetf(ios_base::floatfield)
1071 defaultfloat(ios_base
& __base
)
1073 __base
.unsetf(ios_base::floatfield
);
1078 _GLIBCXX_END_NAMESPACE_VERSION
1081 #endif /* _IOS_BASE_H */