iomanip

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00001 // Standard stream manipulators -*- C++ -*- 00002 00003 // Copyright (C) 1997, 1998, 1999, 2001, 2002 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 2, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // You should have received a copy of the GNU General Public License along 00017 // with this library; see the file COPYING. If not, write to the Free 00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00019 // USA. 00020 00021 // As a special exception, you may use this file as part of a free software 00022 // library without restriction. Specifically, if other files instantiate 00023 // templates or use macros or inline functions from this file, or you compile 00024 // this file and link it with other files to produce an executable, this 00025 // file does not by itself cause the resulting executable to be covered by 00026 // the GNU General Public License. This exception does not however 00027 // invalidate any other reasons why the executable file might be covered by 00028 // the GNU General Public License. 00029 00030 // 00031 // ISO C++ 14882: 27.6.3 Standard manipulators 00032 // 00033 00039 #ifndef _CPP_IOMANIP 00040 #define _CPP_IOMANIP 1 00041 00042 #pragma GCC system_header 00043 00044 #include <bits/c++config.h> 00045 #include <istream> 00046 #include <functional> 00047 00048 namespace std 00049 { 00050 struct _Resetiosflags { ios_base::fmtflags _M_mask; }; 00051 00052 inline _Resetiosflags 00053 resetiosflags(ios_base::fmtflags __mask) 00054 { 00055 _Resetiosflags __x; 00056 __x._M_mask = __mask; 00057 return __x; 00058 } 00059 00060 template<typename _CharT, typename _Traits> 00061 inline basic_istream<_CharT,_Traits>& 00062 operator>>(basic_istream<_CharT,_Traits>& __is, _Resetiosflags __f) 00063 { 00064 __is.setf(ios_base::fmtflags(0), __f._M_mask); 00065 return __is; 00066 } 00067 00068 template<typename _CharT, typename _Traits> 00069 inline basic_ostream<_CharT,_Traits>& 00070 operator<<(basic_ostream<_CharT,_Traits>& __os, _Resetiosflags __f) 00071 { 00072 __os.setf(ios_base::fmtflags(0), __f._M_mask); 00073 return __os; 00074 } 00075 00076 00077 struct _Setiosflags { ios_base::fmtflags _M_mask; }; 00078 00079 inline _Setiosflags 00080 setiosflags(ios_base::fmtflags __mask) 00081 { 00082 _Setiosflags __x; 00083 __x._M_mask = __mask; 00084 return __x; 00085 } 00086 00087 template<typename _CharT, typename _Traits> 00088 inline basic_istream<_CharT,_Traits>& 00089 operator>>(basic_istream<_CharT,_Traits>& __is, _Setiosflags __f) 00090 { 00091 __is.setf(__f._M_mask); 00092 return __is; 00093 } 00094 00095 template<typename _CharT, typename _Traits> 00096 inline basic_ostream<_CharT,_Traits>& 00097 operator<<(basic_ostream<_CharT,_Traits>& __os, _Setiosflags __f) 00098 { 00099 __os.setf(__f._M_mask); 00100 return __os; 00101 } 00102 00103 00104 struct _Setbase { int _M_base; }; 00105 00106 inline _Setbase 00107 setbase(int __base) 00108 { 00109 _Setbase __x; 00110 __x._M_base = __base; 00111 return __x; 00112 } 00113 00114 template<typename _CharT, typename _Traits> 00115 inline basic_istream<_CharT,_Traits>& 00116 operator>>(basic_istream<_CharT,_Traits>& __is, _Setbase __f) 00117 { 00118 __is.setf(__f._M_base == 8 ? ios_base::oct : 00119 __f._M_base == 10 ? ios_base::dec : 00120 __f._M_base == 16 ? ios_base::hex : 00121 ios_base::fmtflags(0), ios_base::basefield); 00122 return __is; 00123 } 00124 00125 template<typename _CharT, typename _Traits> 00126 inline basic_ostream<_CharT,_Traits>& 00127 operator<<(basic_ostream<_CharT,_Traits>& __os, _Setbase __f) 00128 { 00129 __os.setf(__f._M_base == 8 ? ios_base::oct : 00130 __f._M_base == 10 ? ios_base::dec : 00131 __f._M_base == 16 ? ios_base::hex : 00132 ios_base::fmtflags(0), ios_base::basefield); 00133 return __os; 00134 } 00135 00136 00137 template<typename _CharT> 00138 struct _Setfill { _CharT _M_c; }; 00139 00140 template<typename _CharT> 00141 inline _Setfill<_CharT> 00142 setfill(_CharT __c) 00143 { 00144 _Setfill<_CharT> __x; 00145 __x._M_c = __c; 00146 return __x; 00147 } 00148 00149 template<typename _CharT, typename _Traits> 00150 inline basic_istream<_CharT,_Traits>& 00151 operator>>(basic_istream<_CharT,_Traits>& __is, _Setfill<_CharT> __f) 00152 { 00153 __is.fill(__f._M_c); 00154 return __is; 00155 } 00156 00157 template<typename _CharT, typename _Traits> 00158 inline basic_ostream<_CharT,_Traits>& 00159 operator<<(basic_ostream<_CharT,_Traits>& __os, _Setfill<_CharT> __f) 00160 { 00161 __os.fill(__f._M_c); 00162 return __os; 00163 } 00164 00165 00166 struct _Setprecision { int _M_n; }; 00167 00168 inline _Setprecision 00169 setprecision(int __n) 00170 { 00171 _Setprecision __x; 00172 __x._M_n = __n; 00173 return __x; 00174 } 00175 00176 template<typename _CharT, typename _Traits> 00177 inline basic_istream<_CharT,_Traits>& 00178 operator>>(basic_istream<_CharT,_Traits>& __is, _Setprecision __f) 00179 { 00180 __is.precision(__f._M_n); 00181 return __is; 00182 } 00183 00184 template<typename _CharT, typename _Traits> 00185 inline basic_ostream<_CharT,_Traits>& 00186 operator<<(basic_ostream<_CharT,_Traits>& __os, _Setprecision __f) 00187 { 00188 __os.precision(__f._M_n); 00189 return __os; 00190 } 00191 00192 00193 struct _Setw { int _M_n; }; 00194 00195 inline _Setw 00196 setw(int __n) 00197 { 00198 _Setw __x; 00199 __x._M_n = __n; 00200 return __x; 00201 } 00202 00203 template<typename _CharT, typename _Traits> 00204 inline basic_istream<_CharT,_Traits>& 00205 operator>>(basic_istream<_CharT,_Traits>& __is, _Setw __f) 00206 { 00207 __is.width(__f._M_n); 00208 return __is; 00209 } 00210 00211 template<typename _CharT, typename _Traits> 00212 inline basic_ostream<_CharT,_Traits>& 00213 operator<<(basic_ostream<_CharT,_Traits>& __os, _Setw __f) 00214 { 00215 __os.width(__f._M_n); 00216 return __os; 00217 } 00218 00219 // Inhibit implicit instantiations for required instantiations, 00220 // which are defined via explicit instantiations elsewhere. 00221 // NB: This syntax is a GNU extension. 00222 extern template ostream& operator<<(ostream&, _Setfill<char>); 00223 extern template ostream& operator<<(ostream&, _Setiosflags); 00224 extern template ostream& operator<<(ostream&, _Resetiosflags); 00225 extern template ostream& operator<<(ostream&, _Setbase); 00226 extern template ostream& operator<<(ostream&, _Setprecision); 00227 extern template ostream& operator<<(ostream&, _Setw); 00228 extern template istream& operator>>(istream&, _Setfill<char>); 00229 extern template istream& operator>>(istream&, _Setiosflags); 00230 extern template istream& operator>>(istream&, _Resetiosflags); 00231 extern template istream& operator>>(istream&, _Setbase); 00232 extern template istream& operator>>(istream&, _Setprecision); 00233 extern template istream& operator>>(istream&, _Setw); 00234 00235 #ifdef _GLIBCPP_USE_WCHAR_T 00236 extern template wostream& operator<<(wostream&, _Setfill<wchar_t>); 00237 extern template wostream& operator<<(wostream&, _Setiosflags); 00238 extern template wostream& operator<<(wostream&, _Resetiosflags); 00239 extern template wostream& operator<<(wostream&, _Setbase); 00240 extern template wostream& operator<<(wostream&, _Setprecision); 00241 extern template wostream& operator<<(wostream&, _Setw); 00242 extern template wistream& operator>>(wistream&, _Setfill<wchar_t>); 00243 extern template wistream& operator>>(wistream&, _Setiosflags); 00244 extern template wistream& operator>>(wistream&, _Resetiosflags); 00245 extern template wistream& operator>>(wistream&, _Setbase); 00246 extern template wistream& operator>>(wistream&, _Setprecision); 00247 extern template wistream& operator>>(wistream&, _Setw); 00248 #endif 00249 } // namespace std 00250 00251 #endif

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