859 lines
25 KiB
C++
859 lines
25 KiB
C++
// Iostreams base classes -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 27.8 File-based streams
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//
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/** @file ios_base.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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#ifndef _CPP_BITS_IOSBASE_H
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#define _CPP_BITS_IOSBASE_H 1
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#pragma GCC system_header
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#include <bits/atomicity.h>
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#include <bits/localefwd.h>
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#include <bits/locale_classes.h>
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namespace std
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{
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// The following definitions of bitmask types are enums, not ints,
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// as permitted (but not required) in the standard, in order to provide
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// better type safety in iostream calls. A side effect is that
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// expressions involving them are no longer compile-time constants.
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enum _Ios_Fmtflags { _M_ios_fmtflags_end = 1L << 16 };
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inline _Ios_Fmtflags
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operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
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{ return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); }
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inline _Ios_Fmtflags
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operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
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{ return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); }
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inline _Ios_Fmtflags
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operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
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{ return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); }
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inline _Ios_Fmtflags
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operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
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{ return __a = __a | __b; }
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inline _Ios_Fmtflags
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operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
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{ return __a = __a & __b; }
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inline _Ios_Fmtflags
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operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
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{ return __a = __a ^ __b; }
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inline _Ios_Fmtflags
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operator~(_Ios_Fmtflags __a)
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{ return _Ios_Fmtflags(~static_cast<int>(__a)); }
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enum _Ios_Openmode { _M_ios_openmode_end = 1L << 16 };
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inline _Ios_Openmode
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operator&(_Ios_Openmode __a, _Ios_Openmode __b)
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{ return _Ios_Openmode(static_cast<int>(__a) & static_cast<int>(__b)); }
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inline _Ios_Openmode
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operator|(_Ios_Openmode __a, _Ios_Openmode __b)
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{ return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); }
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inline _Ios_Openmode
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operator^(_Ios_Openmode __a, _Ios_Openmode __b)
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{ return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); }
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inline _Ios_Openmode
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operator|=(_Ios_Openmode& __a, _Ios_Openmode __b)
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{ return __a = __a | __b; }
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inline _Ios_Openmode
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operator&=(_Ios_Openmode& __a, _Ios_Openmode __b)
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{ return __a = __a & __b; }
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inline _Ios_Openmode
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operator^=(_Ios_Openmode& __a, _Ios_Openmode __b)
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{ return __a = __a ^ __b; }
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inline _Ios_Openmode
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operator~(_Ios_Openmode __a)
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{ return _Ios_Openmode(~static_cast<int>(__a)); }
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enum _Ios_Iostate { _M_ios_iostate_end = 1L << 16 };
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inline _Ios_Iostate
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operator&(_Ios_Iostate __a, _Ios_Iostate __b)
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{ return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); }
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inline _Ios_Iostate
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operator|(_Ios_Iostate __a, _Ios_Iostate __b)
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{ return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); }
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inline _Ios_Iostate
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operator^(_Ios_Iostate __a, _Ios_Iostate __b)
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{ return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); }
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inline _Ios_Iostate
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operator|=(_Ios_Iostate& __a, _Ios_Iostate __b)
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{ return __a = __a | __b; }
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inline _Ios_Iostate
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operator&=(_Ios_Iostate& __a, _Ios_Iostate __b)
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{ return __a = __a & __b; }
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inline _Ios_Iostate
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operator^=(_Ios_Iostate& __a, _Ios_Iostate __b)
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{ return __a = __a ^ __b; }
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inline _Ios_Iostate
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operator~(_Ios_Iostate __a)
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{ return _Ios_Iostate(~static_cast<int>(__a)); }
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enum _Ios_Seekdir { _M_ios_seekdir_end = 1L << 16 };
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// 27.4.2 Class ios_base
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/**
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* @brief The very top of the I/O class hierarchy.
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*
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* This class defines everything that can be defined about I/O that does
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* not depend on the type of characters being input or output. Most
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* people will only see @c ios_base when they need to specify the full
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* name of the various I/O flags (e.g., the openmodes).
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*/
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class ios_base
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{
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public:
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// 27.4.2.1.1 Class ios_base::failure
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/// These are thrown to indicate problems. Doc me.
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class failure : public exception
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{
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public:
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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//48. Use of non-existent exception constructor
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explicit
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failure(const string& __str) throw();
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// This declaration is not useless:
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// http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
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virtual
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~failure() throw();
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virtual const char*
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what() const throw();
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private:
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enum { _M_bufsize = 256 };
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char _M_name[_M_bufsize];
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#endif
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};
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// 27.4.2.1.2 Type ios_base::fmtflags
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/**
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* @brief This is a bitmask type.
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*
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* @c "_Ios_Fmtflags" is implementation-defined, but it is valid to
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* perform bitwise operations on these values and expect the Right
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* Thing to happen. Defined objects of type fmtflags are:
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* - boolalpha
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* - dec
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* - fixed
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* - hex
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* - internal
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* - left
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* - oct
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* - right
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* - scientific
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* - showbase
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* - showpoint
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* - showpos
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* - skipws
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* - unitbuf
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* - uppercase
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* - adjustfield
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* - basefield
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* - floatfield
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*/
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typedef _Ios_Fmtflags fmtflags;
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/// Insert/extract @c bool in alphabetic rather than numeric format.
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static const fmtflags boolalpha = fmtflags(__ios_flags::_S_boolalpha);
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/// Converts integer input or generates integer output in decimal base.
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static const fmtflags dec = fmtflags(__ios_flags::_S_dec);
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/// Generate floating-point output in fixed-point notation.
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static const fmtflags fixed = fmtflags(__ios_flags::_S_fixed);
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/// Converts integer input or generates integer output in hexadecimal base.
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static const fmtflags hex = fmtflags(__ios_flags::_S_hex);
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/// Adds fill characters at a designated internal point in certain
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/// generated output, or identical to @c right if no such point is
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/// designated.
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static const fmtflags internal = fmtflags(__ios_flags::_S_internal);
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/// Adds fill characters on the right (final positions) of certain
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/// generated output. (I.e., the thing you print is flush left.)
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static const fmtflags left = fmtflags(__ios_flags::_S_left);
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/// Converts integer input or generates integer output in octal base.
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static const fmtflags oct = fmtflags(__ios_flags::_S_oct);
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/// Adds fill characters on the left (initial positions) of certain
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/// generated output. (I.e., the thing you print is flush right.)
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static const fmtflags right = fmtflags(__ios_flags::_S_right);
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/// Generates floating-point output in scientific notation.
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static const fmtflags scientific = fmtflags(__ios_flags::_S_scientific);
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/// Generates a prefix indicating the numeric base of generated integer
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/// output.
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static const fmtflags showbase = fmtflags(__ios_flags::_S_showbase);
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/// Generates a decimal-point character unconditionally in generated
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/// floating-point output.
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static const fmtflags showpoint = fmtflags(__ios_flags::_S_showpoint);
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/// Generates a + sign in non-negative generated numeric output.
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static const fmtflags showpos = fmtflags(__ios_flags::_S_showpos);
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/// Skips leading white space before certain input operations.
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static const fmtflags skipws = fmtflags(__ios_flags::_S_skipws);
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/// Flushes output after each output operation.
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static const fmtflags unitbuf = fmtflags(__ios_flags::_S_unitbuf);
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/// Replaces certain lowercase letters with their uppercase equivalents
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/// in generated output.
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static const fmtflags uppercase = fmtflags(__ios_flags::_S_uppercase);
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/// A mask of left|right|internal. Useful for the 2-arg form of @c setf.
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static const fmtflags adjustfield = fmtflags(__ios_flags::_S_adjustfield);
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/// A mask of dec|oct|hex. Useful for the 2-arg form of @c setf.
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static const fmtflags basefield = fmtflags(__ios_flags::_S_basefield);
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/// A mask of scientific|fixed. Useful for the 2-arg form of @c setf.
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static const fmtflags floatfield = fmtflags(__ios_flags::_S_floatfield);
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// 27.4.2.1.3 Type ios_base::iostate
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/**
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* @brief This is a bitmask type.
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*
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* @c "_Ios_Iostate" is implementation-defined, but it is valid to
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* perform bitwise operations on these values and expect the Right
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* Thing to happen. Defined objects of type iostate are:
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* - badbit
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* - eofbit
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* - failbit
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* - goodbit
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*/
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typedef _Ios_Iostate iostate;
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/// Indicates a loss of integrity in an input or output sequence (such
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/// as an irrecoverable read error from a file).
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static const iostate badbit = iostate(__ios_flags::_S_badbit);
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/// Indicates that an input operation reached the end of an input sequence.
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static const iostate eofbit = iostate(__ios_flags::_S_eofbit);
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/// Indicates that an input operation failed to read the expected
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/// characters, or that an output operation failed to generate the
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/// desired characters.
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static const iostate failbit = iostate(__ios_flags::_S_failbit);
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/// Indicates all is well.
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static const iostate goodbit = iostate(0);
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// 27.4.2.1.4 Type ios_base::openmode
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/**
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* @brief This is a bitmask type.
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*
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* @c "_Ios_Openmode" is implementation-defined, but it is valid to
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* perform bitwise operations on these values and expect the Right
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* Thing to happen. Defined objects of type openmode are:
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* - app
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* - ate
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* - binary
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* - in
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* - out
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* - trunc
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*/
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typedef _Ios_Openmode openmode;
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/// Seek to end before each write.
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static const openmode app = openmode(__ios_flags::_S_app);
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/// Open and seek to end immediately after opening.
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static const openmode ate = openmode(__ios_flags::_S_ate);
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/// Perform input and output in binary mode (as opposed to text mode).
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/// This is probably not what you think it is; see
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/// http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#3 and
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/// http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#7 for more.
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static const openmode binary = openmode(__ios_flags::_S_bin);
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/// Open for input. Default for @c ifstream and fstream.
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static const openmode in = openmode(__ios_flags::_S_in);
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/// Open for output. Default for @c ofstream and fstream.
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static const openmode out = openmode(__ios_flags::_S_out);
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/// Open for input. Default for @c ofstream.
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static const openmode trunc = openmode(__ios_flags::_S_trunc);
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// 27.4.2.1.5 Type ios_base::seekdir
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/**
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* @brief This is an enumerated type.
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*
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* @c "_Ios_Seekdir" is implementation-defined. Defined values
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* of type seekdir are:
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* - beg
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* - cur, equivalent to @c SEEK_CUR in the C standard library.
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* - end, equivalent to @c SEEK_END in the C standard library.
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*/
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typedef _Ios_Seekdir seekdir;
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/// Request a seek relative to the beginning of the stream.
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static const seekdir beg = seekdir(0);
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/// Request a seek relative to the current position within the sequence.
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static const seekdir cur = seekdir(SEEK_CUR);
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/// Request a seek relative to the current end of the sequence.
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static const seekdir end = seekdir(SEEK_END);
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#ifdef _GLIBCPP_DEPRECATED
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// Annex D.6
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typedef int io_state;
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typedef int open_mode;
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typedef int seek_dir;
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typedef std::streampos streampos;
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typedef std::streamoff streamoff;
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#endif
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// Callbacks;
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/**
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* @doctodo
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*/
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enum event
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{
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erase_event,
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imbue_event,
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copyfmt_event
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};
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/**
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* @doctodo
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*/
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typedef void (*event_callback) (event, ios_base&, int);
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/**
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* @doctodo
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*/
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void
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register_callback(event_callback __fn, int __index);
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protected:
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//@{
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/**
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* @if maint
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* ios_base data members (doc me)
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* @endif
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*/
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streamsize _M_precision;
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streamsize _M_width;
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fmtflags _M_flags;
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iostate _M_exception;
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iostate _M_streambuf_state;
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//@}
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// 27.4.2.6 Members for callbacks
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// 27.4.2.6 ios_base callbacks
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struct _Callback_list
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{
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// Data Members
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_Callback_list* _M_next;
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ios_base::event_callback _M_fn;
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int _M_index;
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_Atomic_word _M_refcount; // 0 means one reference.
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_Callback_list(ios_base::event_callback __fn, int __index,
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_Callback_list* __cb)
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: _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { }
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void
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_M_add_reference() { __atomic_add(&_M_refcount, 1); }
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// 0 => OK to delete.
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int
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_M_remove_reference() { return __exchange_and_add(&_M_refcount, -1); }
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};
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_Callback_list* _M_callbacks;
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void
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_M_call_callbacks(event __ev) throw();
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void
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_M_dispose_callbacks(void);
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// 27.4.2.5 Members for iword/pword storage
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struct _Words
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{
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void* _M_pword;
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long _M_iword;
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_Words() : _M_pword(0), _M_iword(0) { }
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};
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// Only for failed iword/pword calls.
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_Words _M_word_zero;
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// Guaranteed storage.
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// The first 5 iword and pword slots are reserved for internal use.
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static const int _S_local_word_size = 8;
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_Words _M_local_word[_S_local_word_size];
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// Allocated storage.
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int _M_word_size;
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_Words* _M_word;
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_Words&
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_M_grow_words(int __index);
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// Members for locale and locale caching.
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locale _M_ios_locale;
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void
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_M_init();
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public:
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// 27.4.2.1.6 Class ios_base::Init
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// Used to initialize standard streams. In theory, g++ could use
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// -finit-priority to order this stuff correctly without going
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// through these machinations.
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class Init
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{
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friend class ios_base;
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public:
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Init();
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~Init();
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static void
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_S_ios_create(bool __sync);
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static void
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_S_ios_destroy();
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// NB: Allows debugger applications use of the standard streams
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// from operator new. _S_ios_base_init must be incremented in
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// _S_ios_create _after_ initialization is completed.
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static bool
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_S_initialized() { return _S_ios_base_init; }
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private:
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static int _S_ios_base_init;
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static bool _S_synced_with_stdio;
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};
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// [27.4.2.2] fmtflags state functions
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/**
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* @brief Access to format flags.
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* @return The format control flags for both input and output.
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*/
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inline fmtflags
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flags() const { return _M_flags; }
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/**
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* @brief Setting new format flags all at once.
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* @param fmtfl The new flags to set.
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* @return The previous format control flags.
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*
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* This function overwrites all the format flags with @a fmtfl.
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*/
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inline fmtflags
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flags(fmtflags __fmtfl)
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{
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fmtflags __old = _M_flags;
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_M_flags = __fmtfl;
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|
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.
|
|
*/
|
|
inline 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.
|
|
*/
|
|
inline 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.
|
|
*/
|
|
inline void
|
|
unsetf(fmtflags __mask) { _M_flags &= ~__mask; }
|
|
|
|
/**
|
|
* @brief Flags access.
|
|
* @return The precision to generate on certain output operations.
|
|
*
|
|
* @if maint
|
|
* Be careful if you try to give a definition of "precision" here; see
|
|
* DR 189.
|
|
* @endif
|
|
*/
|
|
inline streamsize
|
|
precision() const { return _M_precision; }
|
|
|
|
/**
|
|
* @brief Changing flags.
|
|
* @param prec The new precision value.
|
|
* @return The previous value of precision().
|
|
*/
|
|
inline 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.
|
|
*
|
|
* "Minimum field width" refers to the number of characters.
|
|
*/
|
|
inline streamsize
|
|
width() const { return _M_width; }
|
|
|
|
/**
|
|
* @brief Changing flags.
|
|
* @param wide The new width value.
|
|
* @return The previous value of width().
|
|
*/
|
|
inline 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++/27_io/howto.html#8 for more.
|
|
*/
|
|
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
|
|
* [XXX does something with callbacks].
|
|
*/
|
|
locale
|
|
imbue(const locale& __loc);
|
|
|
|
/**
|
|
* @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.
|
|
*/
|
|
inline 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.
|
|
*/
|
|
inline const locale&
|
|
_M_getloc() const { return _M_ios_locale; }
|
|
|
|
// [27.4.2.5] ios_base storage functions
|
|
/**
|
|
* @doctodo
|
|
*/
|
|
static int
|
|
xalloc() throw();
|
|
|
|
/**
|
|
* @doctodo
|
|
*/
|
|
inline long&
|
|
iword(int __ix)
|
|
{
|
|
_Words& __word = (__ix < _M_word_size)
|
|
? _M_word[__ix] : _M_grow_words(__ix);
|
|
return __word._M_iword;
|
|
}
|
|
|
|
/**
|
|
* @doctodo
|
|
*/
|
|
inline void*&
|
|
pword(int __ix)
|
|
{
|
|
_Words& __word = (__ix < _M_word_size)
|
|
? _M_word[__ix] : _M_grow_words(__ix);
|
|
return __word._M_pword;
|
|
}
|
|
|
|
// Destructor
|
|
/**
|
|
* Destroys local storage and
|
|
* [XXX does something with callbacks].
|
|
*/
|
|
~ios_base();
|
|
|
|
protected:
|
|
ios_base();
|
|
|
|
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
|
|
//50. Copy constructor and assignment operator of ios_base
|
|
private:
|
|
ios_base(const ios_base&);
|
|
|
|
ios_base&
|
|
operator=(const ios_base&);
|
|
#endif
|
|
};
|
|
|
|
// [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 anipulators
|
|
/// 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 anipulators
|
|
/// 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 anipulators
|
|
/// 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;
|
|
}
|
|
|
|
} // namespace std
|
|
|
|
#endif /* _CPP_BITS_IOSBASE_H */
|
|
|