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Diffstat (limited to 'libstdc++/include/std/std_iomanip.h')
| -rw-r--r-- | libstdc++/include/std/std_iomanip.h | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/libstdc++/include/std/std_iomanip.h b/libstdc++/include/std/std_iomanip.h new file mode 100644 index 0000000..13b21d5 --- /dev/null +++ b/libstdc++/include/std/std_iomanip.h @@ -0,0 +1,300 @@ +// Standard stream manipulators -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003, 2005 +// 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 2, 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. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +/** @file 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 <istream> +#include <functional> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + // [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) + { + _Resetiosflags __x; + __x._M_mask = __mask; + return __x; + } + + 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) + { + _Setiosflags __x; + __x._M_mask = __mask; + return __x; + } + + 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) + { + _Setbase __x; + __x._M_base = __base; + return __x; + } + + 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) + { + _Setfill<_CharT> __x; + __x._M_c = __c; + return __x; + } + + 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) + { + _Setprecision __x; + __x._M_n = __n; + return __x; + } + + 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) + { + _Setw __x; + __x._M_n = __n; + return __x; + } + + 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; + } + + // 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 + +#endif /* _GLIBCXX_IOMANIP */ |
