0,0 → 1,975 |
// Iostreams base classes -*- C++ -*- |
|
// Copyright (C) 1997-2013 Free Software Foundation, Inc. |
// |
// This file is part of the GNU ISO C++ Library. This library is free |
// software; you can redistribute it and/or modify it under the |
// terms of the GNU General Public License as published by the |
// Free Software Foundation; either version 3, or (at your option) |
// any later version. |
|
// This library is distributed in the hope that it will be useful, |
// but WITHOUT ANY WARRANTY; without even the implied warranty of |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
// GNU General Public License for more details. |
|
// Under Section 7 of GPL version 3, you are granted additional |
// permissions described in the GCC Runtime Library Exception, version |
// 3.1, as published by the Free Software Foundation. |
|
// You should have received a copy of the GNU General Public License and |
// a copy of the GCC Runtime Library Exception along with this program; |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
// <http://www.gnu.org/licenses/>. |
|
/** @file bits/ios_base.h |
* This is an internal header file, included by other library headers. |
* Do not attempt to use it directly. @headername{ios} |
*/ |
|
// |
// ISO C++ 14882: 27.4 Iostreams base classes |
// |
|
#ifndef _IOS_BASE_H |
#define _IOS_BASE_H 1 |
|
#pragma GCC system_header |
|
#include <ext/atomicity.h> |
#include <bits/localefwd.h> |
#include <bits/locale_classes.h> |
|
namespace std _GLIBCXX_VISIBILITY(default) |
{ |
_GLIBCXX_BEGIN_NAMESPACE_VERSION |
|
// The following definitions of bitmask types are enums, not ints, |
// as permitted (but not required) in the standard, in order to provide |
// better type safety in iostream calls. A side effect is that |
// expressions involving them are no longer compile-time constants. |
enum _Ios_Fmtflags |
{ |
_S_boolalpha = 1L << 0, |
_S_dec = 1L << 1, |
_S_fixed = 1L << 2, |
_S_hex = 1L << 3, |
_S_internal = 1L << 4, |
_S_left = 1L << 5, |
_S_oct = 1L << 6, |
_S_right = 1L << 7, |
_S_scientific = 1L << 8, |
_S_showbase = 1L << 9, |
_S_showpoint = 1L << 10, |
_S_showpos = 1L << 11, |
_S_skipws = 1L << 12, |
_S_unitbuf = 1L << 13, |
_S_uppercase = 1L << 14, |
_S_adjustfield = _S_left | _S_right | _S_internal, |
_S_basefield = _S_dec | _S_oct | _S_hex, |
_S_floatfield = _S_scientific | _S_fixed, |
_S_ios_fmtflags_end = 1L << 16 |
}; |
|
inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags |
operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b) |
{ return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags |
operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b) |
{ return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags |
operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b) |
{ return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags |
operator~(_Ios_Fmtflags __a) |
{ return _Ios_Fmtflags(~static_cast<int>(__a)); } |
|
inline const _Ios_Fmtflags& |
operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) |
{ return __a = __a | __b; } |
|
inline const _Ios_Fmtflags& |
operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) |
{ return __a = __a & __b; } |
|
inline const _Ios_Fmtflags& |
operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) |
{ return __a = __a ^ __b; } |
|
|
enum _Ios_Openmode |
{ |
_S_app = 1L << 0, |
_S_ate = 1L << 1, |
_S_bin = 1L << 2, |
_S_in = 1L << 3, |
_S_out = 1L << 4, |
_S_trunc = 1L << 5, |
_S_ios_openmode_end = 1L << 16 |
}; |
|
inline _GLIBCXX_CONSTEXPR _Ios_Openmode |
operator&(_Ios_Openmode __a, _Ios_Openmode __b) |
{ return _Ios_Openmode(static_cast<int>(__a) & static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Openmode |
operator|(_Ios_Openmode __a, _Ios_Openmode __b) |
{ return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Openmode |
operator^(_Ios_Openmode __a, _Ios_Openmode __b) |
{ return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Openmode |
operator~(_Ios_Openmode __a) |
{ return _Ios_Openmode(~static_cast<int>(__a)); } |
|
inline const _Ios_Openmode& |
operator|=(_Ios_Openmode& __a, _Ios_Openmode __b) |
{ return __a = __a | __b; } |
|
inline const _Ios_Openmode& |
operator&=(_Ios_Openmode& __a, _Ios_Openmode __b) |
{ return __a = __a & __b; } |
|
inline const _Ios_Openmode& |
operator^=(_Ios_Openmode& __a, _Ios_Openmode __b) |
{ return __a = __a ^ __b; } |
|
|
enum _Ios_Iostate |
{ |
_S_goodbit = 0, |
_S_badbit = 1L << 0, |
_S_eofbit = 1L << 1, |
_S_failbit = 1L << 2, |
_S_ios_iostate_end = 1L << 16 |
}; |
|
inline _GLIBCXX_CONSTEXPR _Ios_Iostate |
operator&(_Ios_Iostate __a, _Ios_Iostate __b) |
{ return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Iostate |
operator|(_Ios_Iostate __a, _Ios_Iostate __b) |
{ return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Iostate |
operator^(_Ios_Iostate __a, _Ios_Iostate __b) |
{ return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); } |
|
inline _GLIBCXX_CONSTEXPR _Ios_Iostate |
operator~(_Ios_Iostate __a) |
{ return _Ios_Iostate(~static_cast<int>(__a)); } |
|
inline const _Ios_Iostate& |
operator|=(_Ios_Iostate& __a, _Ios_Iostate __b) |
{ return __a = __a | __b; } |
|
inline const _Ios_Iostate& |
operator&=(_Ios_Iostate& __a, _Ios_Iostate __b) |
{ return __a = __a & __b; } |
|
inline const _Ios_Iostate& |
operator^=(_Ios_Iostate& __a, _Ios_Iostate __b) |
{ return __a = __a ^ __b; } |
|
|
enum _Ios_Seekdir |
{ |
_S_beg = 0, |
_S_cur = _GLIBCXX_STDIO_SEEK_CUR, |
_S_end = _GLIBCXX_STDIO_SEEK_END, |
_S_ios_seekdir_end = 1L << 16 |
}; |
|
// 27.4.2 Class ios_base |
/** |
* @brief The base of the I/O class hierarchy. |
* @ingroup io |
* |
* This class defines everything that can be defined about I/O that does |
* not depend on the type of characters being input or output. Most |
* people will only see @c ios_base when they need to specify the full |
* name of the various I/O flags (e.g., the openmodes). |
*/ |
class ios_base |
{ |
public: |
|
/** |
* @brief These are thrown to indicate problems with io. |
* @ingroup exceptions |
* |
* 27.4.2.1.1 Class ios_base::failure |
*/ |
class failure : public exception |
{ |
public: |
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 48. Use of non-existent exception constructor |
explicit |
failure(const string& __str) throw(); |
|
// This declaration is not useless: |
// http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Vague-Linkage.html |
virtual |
~failure() throw(); |
|
virtual const char* |
what() const throw(); |
|
private: |
string _M_msg; |
}; |
|
// 27.4.2.1.2 Type ios_base::fmtflags |
/** |
* @brief This is a bitmask type. |
* |
* @c @a _Ios_Fmtflags is implementation-defined, but it is valid to |
* perform bitwise operations on these values and expect the Right |
* Thing to happen. Defined objects of type fmtflags are: |
* - boolalpha |
* - dec |
* - fixed |
* - hex |
* - internal |
* - left |
* - oct |
* - right |
* - scientific |
* - showbase |
* - showpoint |
* - showpos |
* - skipws |
* - unitbuf |
* - uppercase |
* - adjustfield |
* - basefield |
* - floatfield |
*/ |
typedef _Ios_Fmtflags fmtflags; |
|
/// Insert/extract @c bool in alphabetic rather than numeric format. |
static const fmtflags boolalpha = _S_boolalpha; |
|
/// Converts integer input or generates integer output in decimal base. |
static const fmtflags dec = _S_dec; |
|
/// Generate floating-point output in fixed-point notation. |
static const fmtflags fixed = _S_fixed; |
|
/// Converts integer input or generates integer output in hexadecimal base. |
static const fmtflags hex = _S_hex; |
|
/// Adds fill characters at a designated internal point in certain |
/// generated output, or identical to @c right if no such point is |
/// designated. |
static const fmtflags internal = _S_internal; |
|
/// Adds fill characters on the right (final positions) of certain |
/// generated output. (I.e., the thing you print is flush left.) |
static const fmtflags left = _S_left; |
|
/// Converts integer input or generates integer output in octal base. |
static const fmtflags oct = _S_oct; |
|
/// Adds fill characters on the left (initial positions) of certain |
/// generated output. (I.e., the thing you print is flush right.) |
static const fmtflags right = _S_right; |
|
/// Generates floating-point output in scientific notation. |
static const fmtflags scientific = _S_scientific; |
|
/// Generates a prefix indicating the numeric base of generated integer |
/// output. |
static const fmtflags showbase = _S_showbase; |
|
/// Generates a decimal-point character unconditionally in generated |
/// floating-point output. |
static const fmtflags showpoint = _S_showpoint; |
|
/// Generates a + sign in non-negative generated numeric output. |
static const fmtflags showpos = _S_showpos; |
|
/// Skips leading white space before certain input operations. |
static const fmtflags skipws = _S_skipws; |
|
/// Flushes output after each output operation. |
static const fmtflags unitbuf = _S_unitbuf; |
|
/// Replaces certain lowercase letters with their uppercase equivalents |
/// in generated output. |
static const fmtflags uppercase = _S_uppercase; |
|
/// A mask of left|right|internal. Useful for the 2-arg form of @c setf. |
static const fmtflags adjustfield = _S_adjustfield; |
|
/// A mask of dec|oct|hex. Useful for the 2-arg form of @c setf. |
static const fmtflags basefield = _S_basefield; |
|
/// A mask of scientific|fixed. Useful for the 2-arg form of @c setf. |
static const fmtflags floatfield = _S_floatfield; |
|
// 27.4.2.1.3 Type ios_base::iostate |
/** |
* @brief This is a bitmask type. |
* |
* @c @a _Ios_Iostate is implementation-defined, but it is valid to |
* perform bitwise operations on these values and expect the Right |
* Thing to happen. Defined objects of type iostate are: |
* - badbit |
* - eofbit |
* - failbit |
* - goodbit |
*/ |
typedef _Ios_Iostate iostate; |
|
/// Indicates a loss of integrity in an input or output sequence (such |
/// as an irrecoverable read error from a file). |
static const iostate badbit = _S_badbit; |
|
/// Indicates that an input operation reached the end of an input sequence. |
static const iostate eofbit = _S_eofbit; |
|
/// Indicates that an input operation failed to read the expected |
/// characters, or that an output operation failed to generate the |
/// desired characters. |
static const iostate failbit = _S_failbit; |
|
/// Indicates all is well. |
static const iostate goodbit = _S_goodbit; |
|
// 27.4.2.1.4 Type ios_base::openmode |
/** |
* @brief This is a bitmask type. |
* |
* @c @a _Ios_Openmode is implementation-defined, but it is valid to |
* perform bitwise operations on these values and expect the Right |
* Thing to happen. Defined objects of type openmode are: |
* - app |
* - ate |
* - binary |
* - in |
* - out |
* - trunc |
*/ |
typedef _Ios_Openmode openmode; |
|
/// Seek to end before each write. |
static const openmode app = _S_app; |
|
/// Open and seek to end immediately after opening. |
static const openmode ate = _S_ate; |
|
/// Perform input and output in binary mode (as opposed to text mode). |
/// This is probably not what you think it is; see |
/// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch27s02.html |
static const openmode binary = _S_bin; |
|
/// Open for input. Default for @c ifstream and fstream. |
static const openmode in = _S_in; |
|
/// Open for output. Default for @c ofstream and fstream. |
static const openmode out = _S_out; |
|
/// Open for input. Default for @c ofstream. |
static const openmode trunc = _S_trunc; |
|
// 27.4.2.1.5 Type ios_base::seekdir |
/** |
* @brief This is an enumerated type. |
* |
* @c @a _Ios_Seekdir is implementation-defined. Defined values |
* of type seekdir are: |
* - beg |
* - cur, equivalent to @c SEEK_CUR in the C standard library. |
* - end, equivalent to @c SEEK_END in the C standard library. |
*/ |
typedef _Ios_Seekdir seekdir; |
|
/// Request a seek relative to the beginning of the stream. |
static const seekdir beg = _S_beg; |
|
/// Request a seek relative to the current position within the sequence. |
static const seekdir cur = _S_cur; |
|
/// Request a seek relative to the current end of the sequence. |
static const seekdir end = _S_end; |
|
// Annex D.6 |
typedef int io_state; |
typedef int open_mode; |
typedef int seek_dir; |
|
typedef std::streampos streampos; |
typedef std::streamoff streamoff; |
|
// Callbacks; |
/** |
* @brief The set of events that may be passed to an event callback. |
* |
* erase_event is used during ~ios() and copyfmt(). imbue_event is used |
* during imbue(). copyfmt_event is used during copyfmt(). |
*/ |
enum event |
{ |
erase_event, |
imbue_event, |
copyfmt_event |
}; |
|
/** |
* @brief The type of an event callback function. |
* @param __e One of the members of the event enum. |
* @param __b Reference to the ios_base object. |
* @param __i The integer provided when the callback was registered. |
* |
* Event callbacks are user defined functions that get called during |
* several ios_base and basic_ios functions, specifically imbue(), |
* copyfmt(), and ~ios(). |
*/ |
typedef void (*event_callback) (event __e, ios_base& __b, int __i); |
|
/** |
* @brief Add the callback __fn with parameter __index. |
* @param __fn The function to add. |
* @param __index The integer to pass to the function when invoked. |
* |
* Registers a function as an event callback with an integer parameter to |
* be passed to the function when invoked. Multiple copies of the |
* function are allowed. If there are multiple callbacks, they are |
* invoked in the order they were registered. |
*/ |
void |
register_callback(event_callback __fn, int __index); |
|
protected: |
streamsize _M_precision; |
streamsize _M_width; |
fmtflags _M_flags; |
iostate _M_exception; |
iostate _M_streambuf_state; |
|
// 27.4.2.6 Members for callbacks |
// 27.4.2.6 ios_base callbacks |
struct _Callback_list |
{ |
// Data Members |
_Callback_list* _M_next; |
ios_base::event_callback _M_fn; |
int _M_index; |
_Atomic_word _M_refcount; // 0 means one reference. |
|
_Callback_list(ios_base::event_callback __fn, int __index, |
_Callback_list* __cb) |
: _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { } |
|
void |
_M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount, 1); } |
|
// 0 => OK to delete. |
int |
_M_remove_reference() |
{ |
// Be race-detector-friendly. For more info see bits/c++config. |
_GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount); |
int __res = __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount, -1); |
if (__res == 0) |
{ |
_GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount); |
} |
return __res; |
} |
}; |
|
_Callback_list* _M_callbacks; |
|
void |
_M_call_callbacks(event __ev) throw(); |
|
void |
_M_dispose_callbacks(void) throw(); |
|
// 27.4.2.5 Members for iword/pword storage |
struct _Words |
{ |
void* _M_pword; |
long _M_iword; |
_Words() : _M_pword(0), _M_iword(0) { } |
}; |
|
// Only for failed iword/pword calls. |
_Words _M_word_zero; |
|
// Guaranteed storage. |
// The first 5 iword and pword slots are reserved for internal use. |
enum { _S_local_word_size = 8 }; |
_Words _M_local_word[_S_local_word_size]; |
|
// Allocated storage. |
int _M_word_size; |
_Words* _M_word; |
|
_Words& |
_M_grow_words(int __index, bool __iword); |
|
// Members for locale and locale caching. |
locale _M_ios_locale; |
|
void |
_M_init() throw(); |
|
public: |
|
// 27.4.2.1.6 Class ios_base::Init |
// Used to initialize standard streams. In theory, g++ could use |
// -finit-priority to order this stuff correctly without going |
// through these machinations. |
class Init |
{ |
friend class ios_base; |
public: |
Init(); |
~Init(); |
|
private: |
static _Atomic_word _S_refcount; |
static bool _S_synced_with_stdio; |
}; |
|
// [27.4.2.2] fmtflags state functions |
/** |
* @brief Access to format flags. |
* @return The format control flags for both input and output. |
*/ |
fmtflags |
flags() const |
{ return _M_flags; } |
|
/** |
* @brief Setting new format flags all at once. |
* @param __fmtfl The new flags to set. |
* @return The previous format control flags. |
* |
* This function overwrites all the format flags with @a __fmtfl. |
*/ |
fmtflags |
flags(fmtflags __fmtfl) |
{ |
fmtflags __old = _M_flags; |
_M_flags = __fmtfl; |
return __old; |
} |
|
/** |
* @brief Setting new format flags. |
* @param __fmtfl Additional flags to set. |
* @return The previous format control flags. |
* |
* This function sets additional flags in format control. Flags that |
* were previously set remain set. |
*/ |
fmtflags |
setf(fmtflags __fmtfl) |
{ |
fmtflags __old = _M_flags; |
_M_flags |= __fmtfl; |
return __old; |
} |
|
/** |
* @brief Setting new format flags. |
* @param __fmtfl Additional flags to set. |
* @param __mask The flags mask for @a fmtfl. |
* @return The previous format control flags. |
* |
* This function clears @a mask in the format flags, then sets |
* @a fmtfl @c & @a mask. An example mask is @c ios_base::adjustfield. |
*/ |
fmtflags |
setf(fmtflags __fmtfl, fmtflags __mask) |
{ |
fmtflags __old = _M_flags; |
_M_flags &= ~__mask; |
_M_flags |= (__fmtfl & __mask); |
return __old; |
} |
|
/** |
* @brief Clearing format flags. |
* @param __mask The flags to unset. |
* |
* This function clears @a __mask in the format flags. |
*/ |
void |
unsetf(fmtflags __mask) |
{ _M_flags &= ~__mask; } |
|
/** |
* @brief Flags access. |
* @return The precision to generate on certain output operations. |
* |
* Be careful if you try to give a definition of @a precision here; see |
* DR 189. |
*/ |
streamsize |
precision() const |
{ return _M_precision; } |
|
/** |
* @brief Changing flags. |
* @param __prec The new precision value. |
* @return The previous value of precision(). |
*/ |
streamsize |
precision(streamsize __prec) |
{ |
streamsize __old = _M_precision; |
_M_precision = __prec; |
return __old; |
} |
|
/** |
* @brief Flags access. |
* @return The minimum field width to generate on output operations. |
* |
* <em>Minimum field width</em> refers to the number of characters. |
*/ |
streamsize |
width() const |
{ return _M_width; } |
|
/** |
* @brief Changing flags. |
* @param __wide The new width value. |
* @return The previous value of width(). |
*/ |
streamsize |
width(streamsize __wide) |
{ |
streamsize __old = _M_width; |
_M_width = __wide; |
return __old; |
} |
|
// [27.4.2.4] ios_base static members |
/** |
* @brief Interaction with the standard C I/O objects. |
* @param __sync Whether to synchronize or not. |
* @return True if the standard streams were previously synchronized. |
* |
* The synchronization referred to is @e only that between the standard |
* C facilities (e.g., stdout) and the standard C++ objects (e.g., |
* cout). User-declared streams are unaffected. See |
* http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch28s02.html |
*/ |
static bool |
sync_with_stdio(bool __sync = true); |
|
// [27.4.2.3] ios_base locale functions |
/** |
* @brief Setting a new locale. |
* @param __loc The new locale. |
* @return The previous locale. |
* |
* Sets the new locale for this stream, and then invokes each callback |
* with imbue_event. |
*/ |
locale |
imbue(const locale& __loc) throw(); |
|
/** |
* @brief Locale access |
* @return A copy of the current locale. |
* |
* If @c imbue(loc) has previously been called, then this function |
* returns @c loc. Otherwise, it returns a copy of @c std::locale(), |
* the global C++ locale. |
*/ |
locale |
getloc() const |
{ return _M_ios_locale; } |
|
/** |
* @brief Locale access |
* @return A reference to the current locale. |
* |
* Like getloc above, but returns a reference instead of |
* generating a copy. |
*/ |
const locale& |
_M_getloc() const |
{ return _M_ios_locale; } |
|
// [27.4.2.5] ios_base storage functions |
/** |
* @brief Access to unique indices. |
* @return An integer different from all previous calls. |
* |
* This function returns a unique integer every time it is called. It |
* can be used for any purpose, but is primarily intended to be a unique |
* index for the iword and pword functions. The expectation is that an |
* application calls xalloc in order to obtain an index in the iword and |
* pword arrays that can be used without fear of conflict. |
* |
* The implementation maintains a static variable that is incremented and |
* returned on each invocation. xalloc is guaranteed to return an index |
* that is safe to use in the iword and pword arrays. |
*/ |
static int |
xalloc() throw(); |
|
/** |
* @brief Access to integer array. |
* @param __ix Index into the array. |
* @return A reference to an integer associated with the index. |
* |
* The iword function provides access to an array of integers that can be |
* used for any purpose. The array grows as required to hold the |
* supplied index. All integers in the array are initialized to 0. |
* |
* The implementation reserves several indices. You should use xalloc to |
* obtain an index that is safe to use. Also note that since the array |
* can grow dynamically, it is not safe to hold onto the reference. |
*/ |
long& |
iword(int __ix) |
{ |
_Words& __word = (__ix < _M_word_size) |
? _M_word[__ix] : _M_grow_words(__ix, true); |
return __word._M_iword; |
} |
|
/** |
* @brief Access to void pointer array. |
* @param __ix Index into the array. |
* @return A reference to a void* associated with the index. |
* |
* The pword function provides access to an array of pointers that can be |
* used for any purpose. The array grows as required to hold the |
* supplied index. All pointers in the array are initialized to 0. |
* |
* The implementation reserves several indices. You should use xalloc to |
* obtain an index that is safe to use. Also note that since the array |
* can grow dynamically, it is not safe to hold onto the reference. |
*/ |
void*& |
pword(int __ix) |
{ |
_Words& __word = (__ix < _M_word_size) |
? _M_word[__ix] : _M_grow_words(__ix, false); |
return __word._M_pword; |
} |
|
// Destructor |
/** |
* Invokes each callback with erase_event. Destroys local storage. |
* |
* Note that the ios_base object for the standard streams never gets |
* destroyed. As a result, any callbacks registered with the standard |
* streams will not get invoked with erase_event (unless copyfmt is |
* used). |
*/ |
virtual ~ios_base(); |
|
protected: |
ios_base() throw (); |
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 50. Copy constructor and assignment operator of ios_base |
private: |
ios_base(const ios_base&); |
|
ios_base& |
operator=(const ios_base&); |
}; |
|
// [27.4.5.1] fmtflags manipulators |
/// Calls base.setf(ios_base::boolalpha). |
inline ios_base& |
boolalpha(ios_base& __base) |
{ |
__base.setf(ios_base::boolalpha); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::boolalpha). |
inline ios_base& |
noboolalpha(ios_base& __base) |
{ |
__base.unsetf(ios_base::boolalpha); |
return __base; |
} |
|
/// Calls base.setf(ios_base::showbase). |
inline ios_base& |
showbase(ios_base& __base) |
{ |
__base.setf(ios_base::showbase); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::showbase). |
inline ios_base& |
noshowbase(ios_base& __base) |
{ |
__base.unsetf(ios_base::showbase); |
return __base; |
} |
|
/// Calls base.setf(ios_base::showpoint). |
inline ios_base& |
showpoint(ios_base& __base) |
{ |
__base.setf(ios_base::showpoint); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::showpoint). |
inline ios_base& |
noshowpoint(ios_base& __base) |
{ |
__base.unsetf(ios_base::showpoint); |
return __base; |
} |
|
/// Calls base.setf(ios_base::showpos). |
inline ios_base& |
showpos(ios_base& __base) |
{ |
__base.setf(ios_base::showpos); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::showpos). |
inline ios_base& |
noshowpos(ios_base& __base) |
{ |
__base.unsetf(ios_base::showpos); |
return __base; |
} |
|
/// Calls base.setf(ios_base::skipws). |
inline ios_base& |
skipws(ios_base& __base) |
{ |
__base.setf(ios_base::skipws); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::skipws). |
inline ios_base& |
noskipws(ios_base& __base) |
{ |
__base.unsetf(ios_base::skipws); |
return __base; |
} |
|
/// Calls base.setf(ios_base::uppercase). |
inline ios_base& |
uppercase(ios_base& __base) |
{ |
__base.setf(ios_base::uppercase); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::uppercase). |
inline ios_base& |
nouppercase(ios_base& __base) |
{ |
__base.unsetf(ios_base::uppercase); |
return __base; |
} |
|
/// Calls base.setf(ios_base::unitbuf). |
inline ios_base& |
unitbuf(ios_base& __base) |
{ |
__base.setf(ios_base::unitbuf); |
return __base; |
} |
|
/// Calls base.unsetf(ios_base::unitbuf). |
inline ios_base& |
nounitbuf(ios_base& __base) |
{ |
__base.unsetf(ios_base::unitbuf); |
return __base; |
} |
|
// [27.4.5.2] adjustfield manipulators |
/// Calls base.setf(ios_base::internal, ios_base::adjustfield). |
inline ios_base& |
internal(ios_base& __base) |
{ |
__base.setf(ios_base::internal, ios_base::adjustfield); |
return __base; |
} |
|
/// Calls base.setf(ios_base::left, ios_base::adjustfield). |
inline ios_base& |
left(ios_base& __base) |
{ |
__base.setf(ios_base::left, ios_base::adjustfield); |
return __base; |
} |
|
/// Calls base.setf(ios_base::right, ios_base::adjustfield). |
inline ios_base& |
right(ios_base& __base) |
{ |
__base.setf(ios_base::right, ios_base::adjustfield); |
return __base; |
} |
|
// [27.4.5.3] basefield manipulators |
/// Calls base.setf(ios_base::dec, ios_base::basefield). |
inline ios_base& |
dec(ios_base& __base) |
{ |
__base.setf(ios_base::dec, ios_base::basefield); |
return __base; |
} |
|
/// Calls base.setf(ios_base::hex, ios_base::basefield). |
inline ios_base& |
hex(ios_base& __base) |
{ |
__base.setf(ios_base::hex, ios_base::basefield); |
return __base; |
} |
|
/// Calls base.setf(ios_base::oct, ios_base::basefield). |
inline ios_base& |
oct(ios_base& __base) |
{ |
__base.setf(ios_base::oct, ios_base::basefield); |
return __base; |
} |
|
// [27.4.5.4] floatfield manipulators |
/// Calls base.setf(ios_base::fixed, ios_base::floatfield). |
inline ios_base& |
fixed(ios_base& __base) |
{ |
__base.setf(ios_base::fixed, ios_base::floatfield); |
return __base; |
} |
|
/// Calls base.setf(ios_base::scientific, ios_base::floatfield). |
inline ios_base& |
scientific(ios_base& __base) |
{ |
__base.setf(ios_base::scientific, ios_base::floatfield); |
return __base; |
} |
|
_GLIBCXX_END_NAMESPACE_VERSION |
} // namespace |
|
#endif /* _IOS_BASE_H */ |