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// Standard stream manipulators -*- C++ -*- |
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// Copyright (C) 1997-2013 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 3, 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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// Under Section 7 of GPL version 3, you are granted additional |
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// permissions described in the GCC Runtime Library Exception, version |
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// 3.1, as published by the Free Software Foundation. |
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// You should have received a copy of the GNU General Public License and |
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// a copy of the GCC Runtime Library Exception along with this program; |
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// . |
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/** @file include/iomanip |
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* This is a Standard C++ Library header. |
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*/ |
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// |
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// ISO C++ 14882: 27.6.3 Standard manipulators |
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// |
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#ifndef _GLIBCXX_IOMANIP |
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#define _GLIBCXX_IOMANIP 1 |
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#pragma GCC system_header |
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#include |
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#include |
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#include |
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#if __cplusplus >= 201103L |
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#include |
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#endif |
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namespace std _GLIBCXX_VISIBILITY(default) |
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{ |
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_GLIBCXX_BEGIN_NAMESPACE_VERSION |
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// [27.6.3] standard manipulators |
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// Also see DR 183. |
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struct _Resetiosflags { ios_base::fmtflags _M_mask; }; |
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/** |
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* @brief Manipulator for @c setf. |
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* @param __mask A format flags mask. |
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* |
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* Sent to a stream object, this manipulator resets the specified flags, |
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* via @e stream.setf(0,__mask). |
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*/ |
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inline _Resetiosflags |
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resetiosflags(ios_base::fmtflags __mask) |
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{ return { __mask }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f) |
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{ |
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__is.setf(ios_base::fmtflags(0), __f._M_mask); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Resetiosflags __f) |
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{ |
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__os.setf(ios_base::fmtflags(0), __f._M_mask); |
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return __os; |
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} |
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struct _Setiosflags { ios_base::fmtflags _M_mask; }; |
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/** |
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* @brief Manipulator for @c setf. |
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* @param __mask A format flags mask. |
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* |
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* Sent to a stream object, this manipulator sets the format flags |
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* to @a __mask. |
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*/ |
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inline _Setiosflags |
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setiosflags(ios_base::fmtflags __mask) |
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{ return { __mask }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f) |
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{ |
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__is.setf(__f._M_mask); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Setiosflags __f) |
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{ |
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__os.setf(__f._M_mask); |
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return __os; |
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} |
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struct _Setbase { int _M_base; }; |
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/** |
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* @brief Manipulator for @c setf. |
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* @param __base A numeric base. |
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* |
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* Sent to a stream object, this manipulator changes the |
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* @c ios_base::basefield flags to @c oct, @c dec, or @c hex when @a base |
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* is 8, 10, or 16, accordingly, and to 0 if @a __base is any other value. |
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*/ |
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inline _Setbase |
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setbase(int __base) |
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{ return { __base }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f) |
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{ |
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__is.setf(__f._M_base == 8 ? ios_base::oct : |
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__f._M_base == 10 ? ios_base::dec : |
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__f._M_base == 16 ? ios_base::hex : |
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ios_base::fmtflags(0), ios_base::basefield); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Setbase __f) |
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{ |
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__os.setf(__f._M_base == 8 ? ios_base::oct : |
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__f._M_base == 10 ? ios_base::dec : |
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__f._M_base == 16 ? ios_base::hex : |
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ios_base::fmtflags(0), ios_base::basefield); |
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return __os; |
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} |
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template |
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struct _Setfill { _CharT _M_c; }; |
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/** |
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* @brief Manipulator for @c fill. |
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* @param __c The new fill character. |
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* |
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* Sent to a stream object, this manipulator calls @c fill(__c) for that |
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* object. |
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*/ |
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template |
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inline _Setfill<_CharT> |
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setfill(_CharT __c) |
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{ return { __c }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f) |
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{ |
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__is.fill(__f._M_c); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Setfill<_CharT> __f) |
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{ |
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__os.fill(__f._M_c); |
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return __os; |
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} |
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struct _Setprecision { int _M_n; }; |
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/** |
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* @brief Manipulator for @c precision. |
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* @param __n The new precision. |
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* |
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* Sent to a stream object, this manipulator calls @c precision(__n) for |
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* that object. |
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*/ |
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inline _Setprecision |
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setprecision(int __n) |
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{ return { __n }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f) |
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{ |
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__is.precision(__f._M_n); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Setprecision __f) |
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{ |
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__os.precision(__f._M_n); |
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return __os; |
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} |
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struct _Setw { int _M_n; }; |
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/** |
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* @brief Manipulator for @c width. |
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* @param __n The new width. |
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* |
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* Sent to a stream object, this manipulator calls @c width(__n) for |
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* that object. |
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*/ |
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inline _Setw |
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setw(int __n) |
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{ return { __n }; } |
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template |
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inline basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f) |
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{ |
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__is.width(__f._M_n); |
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return __is; |
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} |
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template |
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inline basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Setw __f) |
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{ |
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__os.width(__f._M_n); |
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return __os; |
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} |
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#if __cplusplus >= 201103L |
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template |
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struct _Get_money { _MoneyT& _M_mon; bool _M_intl; }; |
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/** |
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* @brief Extended manipulator for extracting money. |
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* @param __mon Either long double or a specialization of @c basic_string. |
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* @param __intl A bool indicating whether international format |
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* is to be used. |
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* |
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* Sent to a stream object, this manipulator extracts @a __mon. |
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*/ |
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template |
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inline _Get_money<_MoneyT> |
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get_money(_MoneyT& __mon, bool __intl = false) |
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{ return { __mon, __intl }; } |
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template |
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basic_istream<_CharT, _Traits>& |
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operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f) |
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{ |
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typename basic_istream<_CharT, _Traits>::sentry __cerb(__is, false); |
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if (__cerb) |
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{ |
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ios_base::iostate __err = ios_base::goodbit; |
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__try |
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{ |
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typedef istreambuf_iterator<_CharT, _Traits> _Iter; |
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typedef money_get<_CharT, _Iter> _MoneyGet; |
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const _MoneyGet& __mg = use_facet<_MoneyGet>(__is.getloc()); |
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__mg.get(_Iter(__is.rdbuf()), _Iter(), __f._M_intl, |
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__is, __err, __f._M_mon); |
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} |
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__catch(__cxxabiv1::__forced_unwind&) |
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{ |
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__is._M_setstate(ios_base::badbit); |
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__throw_exception_again; |
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} |
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__catch(...) |
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{ __is._M_setstate(ios_base::badbit); } |
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if (__err) |
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__is.setstate(__err); |
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} |
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return __is; |
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} |
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template |
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struct _Put_money { const _MoneyT& _M_mon; bool _M_intl; }; |
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/** |
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* @brief Extended manipulator for inserting money. |
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* @param __mon Either long double or a specialization of @c basic_string. |
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* @param __intl A bool indicating whether international format |
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* is to be used. |
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* |
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* Sent to a stream object, this manipulator inserts @a __mon. |
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*/ |
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template |
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inline _Put_money<_MoneyT> |
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put_money(const _MoneyT& __mon, bool __intl = false) |
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{ return { __mon, __intl }; } |
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template |
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basic_ostream<_CharT, _Traits>& |
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operator<<(basic_ostream<_CharT, _Traits>& __os, _Put_money<_MoneyT> __f) |
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{ |
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typename basic_ostream<_CharT, _Traits>::sentry __cerb(__os); |
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if (__cerb) |
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{ |
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ios_base::iostate __err = ios_base::goodbit; |
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__try |
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{ |
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typedef ostreambuf_iterator<_CharT, _Traits> _Iter; |
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typedef money_put<_CharT, _Iter> _MoneyPut; |
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const _MoneyPut& __mp = use_facet<_MoneyPut>(__os.getloc()); |
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if (__mp.put(_Iter(__os.rdbuf()), __f._M_intl, __os, |
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__os.fill(), __f._M_mon).failed()) |
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__err |= ios_base::badbit; |
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} |
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__catch(__cxxabiv1::__forced_unwind&) |
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{ |
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__os._M_setstate(ios_base::badbit); |
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__throw_exception_again; |
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} |
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__catch(...) |
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{ __os._M_setstate(ios_base::badbit); } |
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if (__err) |
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__os.setstate(__err); |
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} |
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return __os; |
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} |
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#endif |
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// Inhibit implicit instantiations for required instantiations, |
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// which are defined via explicit instantiations elsewhere. |
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// NB: This syntax is a GNU extension. |
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#if _GLIBCXX_EXTERN_TEMPLATE |
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extern template ostream& operator<<(ostream&, _Setfill); |
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extern template ostream& operator<<(ostream&, _Setiosflags); |
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extern template ostream& operator<<(ostream&, _Resetiosflags); |
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extern template ostream& operator<<(ostream&, _Setbase); |
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extern template ostream& operator<<(ostream&, _Setprecision); |
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extern template ostream& operator<<(ostream&, _Setw); |
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extern template istream& operator>>(istream&, _Setfill); |
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extern template istream& operator>>(istream&, _Setiosflags); |
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extern template istream& operator>>(istream&, _Resetiosflags); |
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extern template istream& operator>>(istream&, _Setbase); |
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extern template istream& operator>>(istream&, _Setprecision); |
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extern template istream& operator>>(istream&, _Setw); |
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#ifdef _GLIBCXX_USE_WCHAR_T |
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extern template wostream& operator<<(wostream&, _Setfill); |
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extern template wostream& operator<<(wostream&, _Setiosflags); |
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extern template wostream& operator<<(wostream&, _Resetiosflags); |
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extern template wostream& operator<<(wostream&, _Setbase); |
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extern template wostream& operator<<(wostream&, _Setprecision); |
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extern template wostream& operator<<(wostream&, _Setw); |
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extern template wistream& operator>>(wistream&, _Setfill); |
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extern template wistream& operator>>(wistream&, _Setiosflags); |
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extern template wistream& operator>>(wistream&, _Resetiosflags); |
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extern template wistream& operator>>(wistream&, _Setbase); |
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extern template wistream& operator>>(wistream&, _Setprecision); |
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extern template wistream& operator>>(wistream&, _Setw); |
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#endif |
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#endif |
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_GLIBCXX_END_NAMESPACE_VERSION |
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} // namespace |
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#endif /* _GLIBCXX_IOMANIP */ |