mirror of https://github.com/CGAL/cgal
312 lines
6.5 KiB
C++
312 lines
6.5 KiB
C++
// Copyright (c) 1997
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Andreas Fabri
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#ifndef CGAL_IO_H
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#define CGAL_IO_H
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#include <cstdio>
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#include <string>
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#include <iostream>
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#include <CGAL/tags.h>
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#include <CGAL/IO/io_tags.h>
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#include <CGAL/IO/Color.h>
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namespace CGAL {
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class IO {
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public:
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CGAL_EXPORT static int mode;
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enum Mode {ASCII = 0, PRETTY, BINARY};
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};
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template <class T, class F = ::CGAL::Null_tag >
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class Output_rep {
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const T& t;
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public:
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//! initialize with a const reference to \a t.
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Output_rep( const T& tt) : t(tt) {}
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//! perform the output, calls \c operator\<\< by default.
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std::ostream& operator()( std::ostream& out) const { return (out << t); }
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};
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/*! \relates Output_rep
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\brief stream output of the \c Output_rep calls its \c operator().
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*/
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template <class T, class F>
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std::ostream&
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operator<<( std::ostream& out, Output_rep<T,F> rep) {
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return rep( out);
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}
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//! generic IO output format manipulator.
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template <class T>
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Output_rep<T>
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oformat( const T& t) { return Output_rep<T>(t); }
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//! generic IO output format manipulator with formatting tag.
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template <class T, class F>
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Output_rep<T,F>
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oformat( const T& t, F) { return Output_rep<T,F>(t); }
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/*!\brief
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* input functor class created by the generic IO input manipulator.
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*
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* It holds a reference to the input object. Default implementation
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* calls the stream input operator. Specializations can be written
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* for external types not supporting our stream IO format.
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*/
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template <class T>
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class Input_rep {
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T& t;
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public:
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//! initialize with a reference to \a t.
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Input_rep( T& tt) : t(tt) {}
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//! perform the input, calls \c operator\>\> by default.
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std::istream& operator()( std::istream& in) const { return (in >> t); }
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};
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/*! \relates Input_rep
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\brief stream input to the \c Input_rep calls its \c operator().
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*/
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template <class T>
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std::istream&
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operator>>( std::istream& in, Input_rep<T> rep) {
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return rep( in);
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}
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//! generic IO input format manipulator.
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template <class T>
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Input_rep<T>
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iformat( T& t) { return Input_rep<T>(t); }
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template <class T, class F = Null_tag >
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class Benchmark_rep {
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const T& t;
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public:
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//! initialize with a const reference to \a t.
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Benchmark_rep( const T& tt) : t(tt) {}
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//! perform the output, calls \c operator\<\< by default.
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std::ostream& operator()( std::ostream& out) const {
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return out << t;
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}
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// static function to get the benchmark name
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static std::string get_benchmark_name() {
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return "";
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}
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};
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template <class T, class F>
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std::ostream& operator<<( std::ostream& out, Benchmark_rep<T,F> rep) {
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return rep( out);
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}
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template <class T>
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Benchmark_rep<T> bmformat( const T& t) { return Benchmark_rep<T>(t); }
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template <class T, class F>
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Benchmark_rep<T,F> bmformat( const T& t, F) { return Benchmark_rep<T,F>(t); }
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CGAL_EXPORT
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IO::Mode
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get_mode(std::ios& i);
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CGAL_EXPORT
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IO::Mode
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set_ascii_mode(std::ios& i);
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CGAL_EXPORT
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IO::Mode
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set_binary_mode(std::ios& i);
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CGAL_EXPORT
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IO::Mode
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set_pretty_mode(std::ios& i);
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CGAL_EXPORT
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IO::Mode
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set_mode(std::ios& i, IO::Mode m);
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CGAL_EXPORT
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bool
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is_pretty(std::ios& i);
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CGAL_EXPORT
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bool
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is_ascii(std::ios& i);
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CGAL_EXPORT
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bool
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is_binary(std::ios& i);
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inline std::istream& extract(std::istream& is, double &d)
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{
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#if defined( _MSC_VER ) && ( _MSC_VER > 1600 )
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std::string s;
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is >> s;
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sscanf(s.c_str(), "%lf", &d);
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#else
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is >> d;
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#endif
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return is;
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}
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template < class T >
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inline
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void
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write(std::ostream& os, const T& t, const io_Read_write&)
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{
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os.write(reinterpret_cast<const char*>(&t), sizeof(t));
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}
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template < class T >
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inline
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void
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write(std::ostream& os, const T& t, const io_Operator&)
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{
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os << oformat(t);
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}
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template < class T >
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inline
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void
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write(std::ostream& os, const T& t, const io_Extract_insert&)
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{
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insert(os, t);
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}
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template < class T >
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inline
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void
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write(std::ostream& os, const T& t)
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{
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write(os, t, typename Io_traits<T>::Io_tag());
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}
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template < class T >
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inline
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void
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read(std::istream& is, T& t, const io_Read_write&)
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{
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is.read(reinterpret_cast<char*>(&t), sizeof(t));
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}
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template < class T >
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inline
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void
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read(std::istream& is, T& t, const io_Operator&)
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{
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is >> iformat(t);
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}
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template < class T >
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inline
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void
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read(std::istream& is, T& t, const io_Extract_insert&)
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{
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extract(is, t);
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}
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template < class T >
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inline
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void
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read(std::istream& is, T& t)
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{
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read(is, t, typename Io_traits<T>::Io_tag());
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}
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inline
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std::ostream& operator<<( std::ostream& out, const Color& col)
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{
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switch(out.iword(IO::mode)) {
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case IO::ASCII :
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return out << static_cast<int>(col.red()) << ' '
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<< static_cast<int>(col.green()) << ' '
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<< static_cast<int>(col.blue());
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case IO::BINARY :
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write(out, static_cast<int>(col.red()));
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write(out, static_cast<int>(col.green()));
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write(out, static_cast<int>(col.blue()));
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return out;
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default:
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return out << "Color(" << static_cast<int>(col.red()) << ", "
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<< static_cast<int>(col.green()) << ", "
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<< static_cast<int>(col.blue()) << ')';
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}
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}
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inline
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std::istream &operator>>(std::istream &is, Color& col)
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{
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int r = 0, g = 0, b = 0;
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switch(is.iword(IO::mode)) {
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case IO::ASCII :
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is >> r >> g >> b;
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break;
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case IO::BINARY :
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read(is, r);
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read(is, g);
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read(is, b);
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break;
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default:
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std::cerr << "" << std::endl;
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std::cerr << "Stream must be in ascii or binary mode" << std::endl;
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break;
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}
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col = Color((unsigned char)r,(unsigned char)g,(unsigned char)b);
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return is;
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}
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CGAL_EXPORT
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const char* mode_name( IO::Mode m );
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// From polynomial.h TODO: Where to put this?
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CGAL_EXPORT
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void swallow(std::istream &is, char d);
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CGAL_EXPORT
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void swallow(std::istream &is, const std::string& s );
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} //namespace CGAL
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#endif // CGAL_IO_H
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