/* This is part of libio/iostream, providing -*- C++ -*- input/output. Copyright (C) 1993 Free Software Foundation This file is part of the GNU IO 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. As a special exception, if you link this library with files compiled with a GNU compiler to produce an executable, this does not 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. */ #ifndef _IOMANIP_H #ifdef __GNUG__ #pragma interface #endif #define _IOMANIP_H #include <iostream.h> extern "C++" { //----------------------------------------------------------------------------- // Parametrized Manipulators as specified by ANSI draft //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- // Stream Manipulators //----------------------------------------------------------------------------- // template<class TP> class smanip; // TP = Type Param template<class TP> class sapp { ios& (*_f)(ios&, TP); public: sapp(ios& (*f)(ios&, TP)) : _f(f) {} // smanip<TP> operator()(TP a) { return smanip<TP>(_f, a); } }; template<class TP> inline istream& operator>>(istream& i, const smanip<TP>& m); template<class TP> inline ostream& operator<<(ostream& o, const smanip<TP>& m); template <class TP> class smanip { ios& (*_f)(ios&, TP); TP _a; public: smanip(ios& (*f)(ios&, TP), TP a) : _f(f), _a(a) {} // friend istream& operator>> <>(istream& i, const smanip<TP>& m); friend ostream& operator<< <>(ostream& o, const smanip<TP>& m); }; #ifdef __GNUG__ __extension__ extern template class smanip<int>; __extension__ extern template class smanip<ios::fmtflags>; #endif template<class TP> inline istream& operator>>(istream& i, const smanip<TP>& m) { (*m._f)(i, m._a); return i; } template<class TP> inline ostream& operator<<(ostream& o, const smanip<TP>& m) { (*m._f)(o, m._a); return o;} #ifdef __GNUG__ __extension__ extern template istream& operator>>(istream&, const smanip<int>&); __extension__ extern template istream& operator>>(istream&, const smanip<ios::fmtflags>&); __extension__ extern template ostream& operator<<(ostream&, const smanip<int>&); __extension__ extern template ostream& operator<<(ostream&, const smanip<ios::fmtflags>&); #endif //----------------------------------------------------------------------------- // Input-Stream Manipulators //----------------------------------------------------------------------------- // template<class TP> class imanip; template<class TP> class iapp { istream& (*_f)(istream&, TP); public: iapp(istream& (*f)(istream&,TP)) : _f(f) {} // imanip<TP> operator()(TP a) { return imanip<TP>(_f, a); } }; template <class TP> inline istream& operator>>(istream&, const imanip<TP>&); template <class TP> class imanip { istream& (*_f)(istream&, TP); TP _a; public: imanip(istream& (*f)(istream&, TP), TP a) : _f(f), _a(a) {} // friend istream& operator>> <>(istream& i, const imanip<TP>& m); }; template <class TP> inline istream& operator>>(istream& i, const imanip<TP>& m) { return (*m._f)( i, m._a); } //----------------------------------------------------------------------------- // Output-Stream Manipulators //----------------------------------------------------------------------------- // template<class TP> class omanip; template<class TP> class oapp { ostream& (*_f)(ostream&, TP); public: oapp(ostream& (*f)(ostream&,TP)) : _f(f) {} // omanip<TP> operator()(TP a) { return omanip<TP>(_f, a); } }; template <class TP> inline ostream& operator<<(ostream&, const omanip<TP>&); template <class TP> class omanip { ostream& (*_f)(ostream&, TP); TP _a; public: omanip(ostream& (*f)(ostream&, TP), TP a) : _f(f), _a(a) {} // friend ostream& operator<< <>(ostream& o, const omanip<TP>& m); }; template <class TP> inline ostream& operator<<(ostream& o, const omanip<TP>& m) { return (*m._f)(o, m._a); } //----------------------------------------------------------------------------- // Available Manipulators //----------------------------------------------------------------------------- // // Macro to define an iomanip function, with one argument // The underlying function is `__iomanip_<name>' // #define __DEFINE_IOMANIP_FN1(type,param,function) \ extern ios& __iomanip_##function (ios&, param); \ inline type<param> function (param n) \ { return type<param> (__iomanip_##function, n); } __DEFINE_IOMANIP_FN1( smanip, int, setbase) __DEFINE_IOMANIP_FN1( smanip, int, setfill) __DEFINE_IOMANIP_FN1( smanip, int, setprecision) __DEFINE_IOMANIP_FN1( smanip, int, setw) __DEFINE_IOMANIP_FN1( smanip, ios::fmtflags, resetiosflags) __DEFINE_IOMANIP_FN1( smanip, ios::fmtflags, setiosflags) } // extern "C++" #endif /*!_IOMANIP_H*/