forked from KolibriOS/kolibrios
376 lines
11 KiB
C++
376 lines
11 KiB
C++
// Standard stream manipulators -*- 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 include/iomanip
|
|
* This is a Standard C++ Library header.
|
|
*/
|
|
|
|
//
|
|
// ISO C++ 14882: 27.6.3 Standard manipulators
|
|
//
|
|
|
|
#ifndef _GLIBCXX_IOMANIP
|
|
#define _GLIBCXX_IOMANIP 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
#include <bits/c++config.h>
|
|
#include <iosfwd>
|
|
#include <bits/ios_base.h>
|
|
|
|
#if __cplusplus >= 201103L
|
|
#include <locale>
|
|
#endif
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
// [27.6.3] standard manipulators
|
|
// Also see DR 183.
|
|
|
|
struct _Resetiosflags { ios_base::fmtflags _M_mask; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c setf.
|
|
* @param __mask A format flags mask.
|
|
*
|
|
* Sent to a stream object, this manipulator resets the specified flags,
|
|
* via @e stream.setf(0,__mask).
|
|
*/
|
|
inline _Resetiosflags
|
|
resetiosflags(ios_base::fmtflags __mask)
|
|
{ return { __mask }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
|
|
{
|
|
__is.setf(ios_base::fmtflags(0), __f._M_mask);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Resetiosflags __f)
|
|
{
|
|
__os.setf(ios_base::fmtflags(0), __f._M_mask);
|
|
return __os;
|
|
}
|
|
|
|
|
|
struct _Setiosflags { ios_base::fmtflags _M_mask; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c setf.
|
|
* @param __mask A format flags mask.
|
|
*
|
|
* Sent to a stream object, this manipulator sets the format flags
|
|
* to @a __mask.
|
|
*/
|
|
inline _Setiosflags
|
|
setiosflags(ios_base::fmtflags __mask)
|
|
{ return { __mask }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
|
|
{
|
|
__is.setf(__f._M_mask);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Setiosflags __f)
|
|
{
|
|
__os.setf(__f._M_mask);
|
|
return __os;
|
|
}
|
|
|
|
|
|
struct _Setbase { int _M_base; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c setf.
|
|
* @param __base A numeric base.
|
|
*
|
|
* Sent to a stream object, this manipulator changes the
|
|
* @c ios_base::basefield flags to @c oct, @c dec, or @c hex when @a base
|
|
* is 8, 10, or 16, accordingly, and to 0 if @a __base is any other value.
|
|
*/
|
|
inline _Setbase
|
|
setbase(int __base)
|
|
{ return { __base }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
|
|
{
|
|
__is.setf(__f._M_base == 8 ? ios_base::oct :
|
|
__f._M_base == 10 ? ios_base::dec :
|
|
__f._M_base == 16 ? ios_base::hex :
|
|
ios_base::fmtflags(0), ios_base::basefield);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Setbase __f)
|
|
{
|
|
__os.setf(__f._M_base == 8 ? ios_base::oct :
|
|
__f._M_base == 10 ? ios_base::dec :
|
|
__f._M_base == 16 ? ios_base::hex :
|
|
ios_base::fmtflags(0), ios_base::basefield);
|
|
return __os;
|
|
}
|
|
|
|
|
|
template<typename _CharT>
|
|
struct _Setfill { _CharT _M_c; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c fill.
|
|
* @param __c The new fill character.
|
|
*
|
|
* Sent to a stream object, this manipulator calls @c fill(__c) for that
|
|
* object.
|
|
*/
|
|
template<typename _CharT>
|
|
inline _Setfill<_CharT>
|
|
setfill(_CharT __c)
|
|
{ return { __c }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
|
|
{
|
|
__is.fill(__f._M_c);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Setfill<_CharT> __f)
|
|
{
|
|
__os.fill(__f._M_c);
|
|
return __os;
|
|
}
|
|
|
|
|
|
struct _Setprecision { int _M_n; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c precision.
|
|
* @param __n The new precision.
|
|
*
|
|
* Sent to a stream object, this manipulator calls @c precision(__n) for
|
|
* that object.
|
|
*/
|
|
inline _Setprecision
|
|
setprecision(int __n)
|
|
{ return { __n }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
|
|
{
|
|
__is.precision(__f._M_n);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Setprecision __f)
|
|
{
|
|
__os.precision(__f._M_n);
|
|
return __os;
|
|
}
|
|
|
|
|
|
struct _Setw { int _M_n; };
|
|
|
|
/**
|
|
* @brief Manipulator for @c width.
|
|
* @param __n The new width.
|
|
*
|
|
* Sent to a stream object, this manipulator calls @c width(__n) for
|
|
* that object.
|
|
*/
|
|
inline _Setw
|
|
setw(int __n)
|
|
{ return { __n }; }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
|
|
{
|
|
__is.width(__f._M_n);
|
|
return __is;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
inline basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Setw __f)
|
|
{
|
|
__os.width(__f._M_n);
|
|
return __os;
|
|
}
|
|
|
|
#if __cplusplus >= 201103L
|
|
|
|
template<typename _MoneyT>
|
|
struct _Get_money { _MoneyT& _M_mon; bool _M_intl; };
|
|
|
|
/**
|
|
* @brief Extended manipulator for extracting money.
|
|
* @param __mon Either long double or a specialization of @c basic_string.
|
|
* @param __intl A bool indicating whether international format
|
|
* is to be used.
|
|
*
|
|
* Sent to a stream object, this manipulator extracts @a __mon.
|
|
*/
|
|
template<typename _MoneyT>
|
|
inline _Get_money<_MoneyT>
|
|
get_money(_MoneyT& __mon, bool __intl = false)
|
|
{ return { __mon, __intl }; }
|
|
|
|
template<typename _CharT, typename _Traits, typename _MoneyT>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
|
|
{
|
|
typename basic_istream<_CharT, _Traits>::sentry __cerb(__is, false);
|
|
if (__cerb)
|
|
{
|
|
ios_base::iostate __err = ios_base::goodbit;
|
|
__try
|
|
{
|
|
typedef istreambuf_iterator<_CharT, _Traits> _Iter;
|
|
typedef money_get<_CharT, _Iter> _MoneyGet;
|
|
|
|
const _MoneyGet& __mg = use_facet<_MoneyGet>(__is.getloc());
|
|
__mg.get(_Iter(__is.rdbuf()), _Iter(), __f._M_intl,
|
|
__is, __err, __f._M_mon);
|
|
}
|
|
__catch(__cxxabiv1::__forced_unwind&)
|
|
{
|
|
__is._M_setstate(ios_base::badbit);
|
|
__throw_exception_again;
|
|
}
|
|
__catch(...)
|
|
{ __is._M_setstate(ios_base::badbit); }
|
|
if (__err)
|
|
__is.setstate(__err);
|
|
}
|
|
return __is;
|
|
}
|
|
|
|
|
|
template<typename _MoneyT>
|
|
struct _Put_money { const _MoneyT& _M_mon; bool _M_intl; };
|
|
|
|
/**
|
|
* @brief Extended manipulator for inserting money.
|
|
* @param __mon Either long double or a specialization of @c basic_string.
|
|
* @param __intl A bool indicating whether international format
|
|
* is to be used.
|
|
*
|
|
* Sent to a stream object, this manipulator inserts @a __mon.
|
|
*/
|
|
template<typename _MoneyT>
|
|
inline _Put_money<_MoneyT>
|
|
put_money(const _MoneyT& __mon, bool __intl = false)
|
|
{ return { __mon, __intl }; }
|
|
|
|
template<typename _CharT, typename _Traits, typename _MoneyT>
|
|
basic_ostream<_CharT, _Traits>&
|
|
operator<<(basic_ostream<_CharT, _Traits>& __os, _Put_money<_MoneyT> __f)
|
|
{
|
|
typename basic_ostream<_CharT, _Traits>::sentry __cerb(__os);
|
|
if (__cerb)
|
|
{
|
|
ios_base::iostate __err = ios_base::goodbit;
|
|
__try
|
|
{
|
|
typedef ostreambuf_iterator<_CharT, _Traits> _Iter;
|
|
typedef money_put<_CharT, _Iter> _MoneyPut;
|
|
|
|
const _MoneyPut& __mp = use_facet<_MoneyPut>(__os.getloc());
|
|
if (__mp.put(_Iter(__os.rdbuf()), __f._M_intl, __os,
|
|
__os.fill(), __f._M_mon).failed())
|
|
__err |= ios_base::badbit;
|
|
}
|
|
__catch(__cxxabiv1::__forced_unwind&)
|
|
{
|
|
__os._M_setstate(ios_base::badbit);
|
|
__throw_exception_again;
|
|
}
|
|
__catch(...)
|
|
{ __os._M_setstate(ios_base::badbit); }
|
|
if (__err)
|
|
__os.setstate(__err);
|
|
}
|
|
return __os;
|
|
}
|
|
|
|
#endif
|
|
|
|
// Inhibit implicit instantiations for required instantiations,
|
|
// which are defined via explicit instantiations elsewhere.
|
|
// NB: This syntax is a GNU extension.
|
|
#if _GLIBCXX_EXTERN_TEMPLATE
|
|
extern template ostream& operator<<(ostream&, _Setfill<char>);
|
|
extern template ostream& operator<<(ostream&, _Setiosflags);
|
|
extern template ostream& operator<<(ostream&, _Resetiosflags);
|
|
extern template ostream& operator<<(ostream&, _Setbase);
|
|
extern template ostream& operator<<(ostream&, _Setprecision);
|
|
extern template ostream& operator<<(ostream&, _Setw);
|
|
extern template istream& operator>>(istream&, _Setfill<char>);
|
|
extern template istream& operator>>(istream&, _Setiosflags);
|
|
extern template istream& operator>>(istream&, _Resetiosflags);
|
|
extern template istream& operator>>(istream&, _Setbase);
|
|
extern template istream& operator>>(istream&, _Setprecision);
|
|
extern template istream& operator>>(istream&, _Setw);
|
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
extern template wostream& operator<<(wostream&, _Setfill<wchar_t>);
|
|
extern template wostream& operator<<(wostream&, _Setiosflags);
|
|
extern template wostream& operator<<(wostream&, _Resetiosflags);
|
|
extern template wostream& operator<<(wostream&, _Setbase);
|
|
extern template wostream& operator<<(wostream&, _Setprecision);
|
|
extern template wostream& operator<<(wostream&, _Setw);
|
|
extern template wistream& operator>>(wistream&, _Setfill<wchar_t>);
|
|
extern template wistream& operator>>(wistream&, _Setiosflags);
|
|
extern template wistream& operator>>(wistream&, _Resetiosflags);
|
|
extern template wistream& operator>>(wistream&, _Setbase);
|
|
extern template wistream& operator>>(wistream&, _Setprecision);
|
|
extern template wistream& operator>>(wistream&, _Setw);
|
|
#endif
|
|
#endif
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#endif /* _GLIBCXX_IOMANIP */
|