1 // Iostreams base classes -*- C++ -*-
3 // Copyright (C) 1997-2015 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
56 // expressions involving them are no longer 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;
473 typedef int io_state;
474 typedef int open_mode;
475 typedef int seek_dir;
477 typedef std::streampos streampos;
478 typedef std::streamoff streamoff;
482 * @brief The set of events that may be passed to an event callback.
484 * erase_event is used during ~ios() and copyfmt(). imbue_event is used
485 * during imbue(). copyfmt_event is used during copyfmt().
495 * @brief The type of an event callback function.
496 * @param __e One of the members of the event enum.
497 * @param __b Reference to the ios_base object.
498 * @param __i The integer provided when the callback was registered.
500 * Event callbacks are user defined functions that get called during
501 * several ios_base and basic_ios functions, specifically imbue(),
502 * copyfmt(), and ~ios().
504 typedef void (*event_callback) (event __e, ios_base& __b, int __i);
507 * @brief Add the callback __fn with parameter __index.
508 * @param __fn The function to add.
509 * @param __index The integer to pass to the function when invoked.
511 * Registers a function as an event callback with an integer parameter to
512 * be passed to the function when invoked. Multiple copies of the
513 * function are allowed. If there are multiple callbacks, they are
514 * invoked in the order they were registered.
517 register_callback(event_callback __fn, int __index);
520 streamsize _M_precision;
523 iostate _M_exception;
524 iostate _M_streambuf_state;
526 // 27.4.2.6 Members for callbacks
527 // 27.4.2.6 ios_base callbacks
528 struct _Callback_list
531 _Callback_list* _M_next;
532 ios_base::event_callback _M_fn;
534 _Atomic_word _M_refcount; // 0 means one reference.
536 _Callback_list(ios_base::event_callback __fn, int __index,
537 _Callback_list* __cb)
538 : _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { }
541 _M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount, 1); }
543 // 0 => OK to delete.
545 _M_remove_reference()
547 // Be race-detector-friendly. For more info see bits/c++config.
548 _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount);
549 int __res = __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount, -1);
552 _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount);
558 _Callback_list* _M_callbacks;
561 _M_call_callbacks(event __ev) throw();
564 _M_dispose_callbacks(void) throw();
566 // 27.4.2.5 Members for iword/pword storage
571 _Words() : _M_pword(0), _M_iword(0) { }
574 // Only for failed iword/pword calls.
577 // Guaranteed storage.
578 // The first 5 iword and pword slots are reserved for internal use.
579 enum { _S_local_word_size = 8 };
580 _Words _M_local_word[_S_local_word_size];
582 // Allocated storage.
587 _M_grow_words(int __index, bool __iword);
589 // Members for locale and locale caching.
590 locale _M_ios_locale;
597 // 27.4.2.1.6 Class ios_base::Init
598 // Used to initialize standard streams. In theory, g++ could use
599 // -finit-priority to order this stuff correctly without going
600 // through these machinations.
603 friend class ios_base;
609 static _Atomic_word _S_refcount;
610 static bool _S_synced_with_stdio;
613 // [27.4.2.2] fmtflags state functions
615 * @brief Access to format flags.
616 * @return The format control flags for both input and output.
623 * @brief Setting new format flags all at once.
624 * @param __fmtfl The new flags to set.
625 * @return The previous format control flags.
627 * This function overwrites all the format flags with @a __fmtfl.
630 flags(fmtflags __fmtfl)
632 fmtflags __old = _M_flags;
638 * @brief Setting new format flags.
639 * @param __fmtfl Additional flags to set.
640 * @return The previous format control flags.
642 * This function sets additional flags in format control. Flags that
643 * were previously set remain set.
646 setf(fmtflags __fmtfl)
648 fmtflags __old = _M_flags;
654 * @brief Setting new format flags.
655 * @param __fmtfl Additional flags to set.
656 * @param __mask The flags mask for @a fmtfl.
657 * @return The previous format control flags.
659 * This function clears @a mask in the format flags, then sets
660 * @a fmtfl @c & @a mask. An example mask is @c ios_base::adjustfield.
663 setf(fmtflags __fmtfl, fmtflags __mask)
665 fmtflags __old = _M_flags;
667 _M_flags |= (__fmtfl & __mask);
672 * @brief Clearing format flags.
673 * @param __mask The flags to unset.
675 * This function clears @a __mask in the format flags.
678 unsetf(fmtflags __mask)
679 { _M_flags &= ~__mask; }
682 * @brief Flags access.
683 * @return The precision to generate on certain output operations.
685 * Be careful if you try to give a definition of @a precision here; see
690 { return _M_precision; }
693 * @brief Changing flags.
694 * @param __prec The new precision value.
695 * @return The previous value of precision().
698 precision(streamsize __prec)
700 streamsize __old = _M_precision;
701 _M_precision = __prec;
706 * @brief Flags access.
707 * @return The minimum field width to generate on output operations.
709 * <em>Minimum field width</em> refers to the number of characters.
716 * @brief Changing flags.
717 * @param __wide The new width value.
718 * @return The previous value of width().
721 width(streamsize __wide)
723 streamsize __old = _M_width;
728 // [27.4.2.4] ios_base static members
730 * @brief Interaction with the standard C I/O objects.
731 * @param __sync Whether to synchronize or not.
732 * @return True if the standard streams were previously synchronized.
734 * The synchronization referred to is @e only that between the standard
735 * C facilities (e.g., stdout) and the standard C++ objects (e.g.,
736 * cout). User-declared streams are unaffected. See
737 * https://gcc.gnu.org/onlinedocs/libstdc++/manual/fstreams.html#std.io.filestreams.binary
740 sync_with_stdio(bool __sync = true);
742 // [27.4.2.3] ios_base locale functions
744 * @brief Setting a new locale.
745 * @param __loc The new locale.
746 * @return The previous locale.
748 * Sets the new locale for this stream, and then invokes each callback
752 imbue(const locale& __loc) throw();
755 * @brief Locale access
756 * @return A copy of the current locale.
758 * If @c imbue(loc) has previously been called, then this function
759 * returns @c loc. Otherwise, it returns a copy of @c std::locale(),
760 * the global C++ locale.
764 { return _M_ios_locale; }
767 * @brief Locale access
768 * @return A reference to the current locale.
770 * Like getloc above, but returns a reference instead of
775 { return _M_ios_locale; }
777 // [27.4.2.5] ios_base storage functions
779 * @brief Access to unique indices.
780 * @return An integer different from all previous calls.
782 * This function returns a unique integer every time it is called. It
783 * can be used for any purpose, but is primarily intended to be a unique
784 * index for the iword and pword functions. The expectation is that an
785 * application calls xalloc in order to obtain an index in the iword and
786 * pword arrays that can be used without fear of conflict.
788 * The implementation maintains a static variable that is incremented and
789 * returned on each invocation. xalloc is guaranteed to return an index
790 * that is safe to use in the iword and pword arrays.
796 * @brief Access to integer array.
797 * @param __ix Index into the array.
798 * @return A reference to an integer associated with the index.
800 * The iword function provides access to an array of integers that can be
801 * used for any purpose. The array grows as required to hold the
802 * supplied index. All integers in the array are initialized to 0.
804 * The implementation reserves several indices. You should use xalloc to
805 * obtain an index that is safe to use. Also note that since the array
806 * can grow dynamically, it is not safe to hold onto the reference.
811 _Words& __word = (__ix < _M_word_size)
812 ? _M_word[__ix] : _M_grow_words(__ix, true);
813 return __word._M_iword;
817 * @brief Access to void pointer array.
818 * @param __ix Index into the array.
819 * @return A reference to a void* associated with the index.
821 * The pword function provides access to an array of pointers that can be
822 * used for any purpose. The array grows as required to hold the
823 * supplied index. All pointers in the array are initialized to 0.
825 * The implementation reserves several indices. You should use xalloc to
826 * obtain an index that is safe to use. Also note that since the array
827 * can grow dynamically, it is not safe to hold onto the reference.
832 _Words& __word = (__ix < _M_word_size)
833 ? _M_word[__ix] : _M_grow_words(__ix, false);
834 return __word._M_pword;
839 * Invokes each callback with erase_event. Destroys local storage.
841 * Note that the ios_base object for the standard streams never gets
842 * destroyed. As a result, any callbacks registered with the standard
843 * streams will not get invoked with erase_event (unless copyfmt is
851 #if __cplusplus < 201103L
852 // _GLIBCXX_RESOLVE_LIB_DEFECTS
853 // 50. Copy constructor and assignment operator of ios_base
855 ios_base(const ios_base&);
858 operator=(const ios_base&);
861 ios_base(const ios_base&) = delete;
864 operator=(const ios_base&) = delete;
868 _M_move(ios_base&) noexcept;
871 _M_swap(ios_base& __rhs) noexcept;
875 // [27.4.5.1] fmtflags manipulators
876 /// Calls base.setf(ios_base::boolalpha).
878 boolalpha(ios_base& __base)
880 __base.setf(ios_base::boolalpha);
884 /// Calls base.unsetf(ios_base::boolalpha).
886 noboolalpha(ios_base& __base)
888 __base.unsetf(ios_base::boolalpha);
892 /// Calls base.setf(ios_base::showbase).
894 showbase(ios_base& __base)
896 __base.setf(ios_base::showbase);
900 /// Calls base.unsetf(ios_base::showbase).
902 noshowbase(ios_base& __base)
904 __base.unsetf(ios_base::showbase);
908 /// Calls base.setf(ios_base::showpoint).
910 showpoint(ios_base& __base)
912 __base.setf(ios_base::showpoint);
916 /// Calls base.unsetf(ios_base::showpoint).
918 noshowpoint(ios_base& __base)
920 __base.unsetf(ios_base::showpoint);
924 /// Calls base.setf(ios_base::showpos).
926 showpos(ios_base& __base)
928 __base.setf(ios_base::showpos);
932 /// Calls base.unsetf(ios_base::showpos).
934 noshowpos(ios_base& __base)
936 __base.unsetf(ios_base::showpos);
940 /// Calls base.setf(ios_base::skipws).
942 skipws(ios_base& __base)
944 __base.setf(ios_base::skipws);
948 /// Calls base.unsetf(ios_base::skipws).
950 noskipws(ios_base& __base)
952 __base.unsetf(ios_base::skipws);
956 /// Calls base.setf(ios_base::uppercase).
958 uppercase(ios_base& __base)
960 __base.setf(ios_base::uppercase);
964 /// Calls base.unsetf(ios_base::uppercase).
966 nouppercase(ios_base& __base)
968 __base.unsetf(ios_base::uppercase);
972 /// Calls base.setf(ios_base::unitbuf).
974 unitbuf(ios_base& __base)
976 __base.setf(ios_base::unitbuf);
980 /// Calls base.unsetf(ios_base::unitbuf).
982 nounitbuf(ios_base& __base)
984 __base.unsetf(ios_base::unitbuf);
988 // [27.4.5.2] adjustfield manipulators
989 /// Calls base.setf(ios_base::internal, ios_base::adjustfield).
991 internal(ios_base& __base)
993 __base.setf(ios_base::internal, ios_base::adjustfield);
997 /// Calls base.setf(ios_base::left, ios_base::adjustfield).
999 left(ios_base& __base)
1001 __base.setf(ios_base::left, ios_base::adjustfield);
1005 /// Calls base.setf(ios_base::right, ios_base::adjustfield).
1007 right(ios_base& __base)
1009 __base.setf(ios_base::right, ios_base::adjustfield);
1013 // [27.4.5.3] basefield manipulators
1014 /// Calls base.setf(ios_base::dec, ios_base::basefield).
1016 dec(ios_base& __base)
1018 __base.setf(ios_base::dec, ios_base::basefield);
1022 /// Calls base.setf(ios_base::hex, ios_base::basefield).
1024 hex(ios_base& __base)
1026 __base.setf(ios_base::hex, ios_base::basefield);
1030 /// Calls base.setf(ios_base::oct, ios_base::basefield).
1032 oct(ios_base& __base)
1034 __base.setf(ios_base::oct, ios_base::basefield);
1038 // [27.4.5.4] floatfield manipulators
1039 /// Calls base.setf(ios_base::fixed, ios_base::floatfield).
1041 fixed(ios_base& __base)
1043 __base.setf(ios_base::fixed, ios_base::floatfield);
1047 /// Calls base.setf(ios_base::scientific, ios_base::floatfield).
1049 scientific(ios_base& __base)
1051 __base.setf(ios_base::scientific, ios_base::floatfield);
1055 #if __cplusplus >= 201103L
1056 // New C++11 floatfield manipulators
1059 /// base.setf(ios_base::fixed|ios_base::scientific, ios_base::floatfield)
1061 hexfloat(ios_base& __base)
1063 __base.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
1067 /// Calls @c base.unsetf(ios_base::floatfield)
1069 defaultfloat(ios_base& __base)
1071 __base.unsetf(ios_base::floatfield);
1076 _GLIBCXX_END_NAMESPACE_VERSION
1079 #endif /* _IOS_BASE_H */