/usr/include/root/Math/GenVector/GenVectorIO.h is in libroot-math-genvector-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Authors: W. Brown, M. Fischler, L. Moneta 2005
/**********************************************************************
* *
* Copyright (c) 2005 , LCG ROOT MathLib Team (FNAL component) *
* *
* *
**********************************************************************/
// Support templates (class and function) for stream i/o of vectors
// This is a utuility to allow for control, via manipulators, of the
// form of
//
// Created by: W. E. Brown and M. Fischler at Tue Jun 21 2005
//
// Last update: Tue Jun 21 2005
//
#ifndef ROOT_Math_GenVector_GenVectorIO
#define ROOT_Math_GenVector_GenVectorIO 1
#if defined(__alpha)
#ifndef __USE_STD_IOSTREAM
#define __USE_STD_IOSTREAM
#endif
#endif
#include <cctype>
#include <iostream>
namespace ROOT {
namespace Math {
namespace detail {
// -------- Manipulator support ----------
enum manip_t { open, sep, close, bitforbit };
inline int
ios_data( int k )
{
static int const ios_data[4] = { std::ios::xalloc() // open
, std::ios::xalloc() // sep
, std::ios::xalloc() // close
, std::ios::xalloc() // bitforbit
};
return ios_data[k];
} // ios_data()
template< class char_t, class traits_t >
inline char_t
get_manip( std::basic_ios<char_t,traits_t> & ios
, manip_t m
)
{
char_t ch = static_cast<char_t>( ios.iword( ios_data(m) ) );
if( ch ) return ch;
switch( m )
{ default : return ios.widen( '?' );
case open : return ios.widen( '(' );
case close : return ios.widen( ')' );
case sep : return ios.widen( ',' );
case bitforbit : return ch;
}
} // get_manip<>()
template< class char_t, class traits_t >
inline void
set_manip( std::basic_ios<char_t,traits_t> & ios
, manip_t m
, char_t ch
)
{
ios.iword( ios_data(m) ) = static_cast<long>(ch);
} // set_manip<>()
template< class char_t >
class manipulator
{
public:
explicit
manipulator( manip_t m
, char_t ch = 0
)
: fMan(m)
, fChar(ch)
{ }
template< class traits_t >
void
set( std::basic_ios<char_t,traits_t> & ios ) const
{
set_manip<char_t>( ios, fMan, fChar );
}
private:
manip_t fMan;
char_t fChar;
}; // manipulator<>
template< class char_t, class traits_t >
inline
std::basic_istream<char_t,traits_t> &
require_delim( std::basic_istream<char_t,traits_t> & is
, manip_t m
)
{
char_t delim = get_manip( is, m );
if( std::isspace(delim) ) return is;
char_t ch;
is >> ch;
if( ch != delim )
is.setstate( std::ios::failbit );
return is;
} // require_delim<>()
template< class char_t, class traits_t >
inline
std::basic_ostream<char_t,traits_t> &
operator << ( std::basic_ostream<char_t,traits_t> & os
, detail::manipulator<char_t> const & manip
)
{
manip.set(os);
return os;
} // op<< <>()
template< class char_t, class traits_t >
inline
std::basic_istream<char_t,traits_t> &
operator >> ( std::basic_istream<char_t,traits_t> & is
, detail::manipulator<char_t> const & manip
)
{
manip.set(is);
return is;
} // op>> <>()
} // namespace detail
// --------- Functions that allow a user to control vector I/O ----------
template< class char_t >
inline
detail::manipulator<char_t>
set_open( char_t ch )
{
return detail::manipulator<char_t>( detail::open, ch );
} // set_open<>()
template< class char_t >
inline
detail::manipulator<char_t>
set_separator( char_t ch )
{
return detail::manipulator<char_t>( detail::sep, ch );
} // set_separator<>()
template< class char_t >
inline
detail::manipulator<char_t>
set_close( char_t ch )
{
return detail::manipulator<char_t>( detail::close, ch );
} // set_close<>()
template< class char_t, class traits_t >
inline
std::basic_ios<char_t,traits_t> &
human_readable( std::basic_ios<char_t,traits_t> & ios )
{
ios.iword( ios_data(detail::bitforbit) ) = 0L;
return ios;
} // human_readable<>()
template< class char_t, class traits_t >
inline
std::basic_ios<char_t,traits_t> &
machine_readable( std::basic_ios<char_t,traits_t> & ios )
{
ios.iword( ios_data(detail::bitforbit) ) = 1L;
return ios;
} // machine_readable<>()
} // namespace ROOT
} // namespace Math
#endif // ROOT_Math_GenVector_GenVectorIO
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