| // 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 */ |
