/usr/include/dune/common/streamoperators.hh is in libdune-common-dev 2.5.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_STREAMOPERATORS_HH
#define DUNE_STREAMOPERATORS_HH
/** \file
\brief Implementation of stream operators for std::array and std::tuple
*/
#include <array>
#include <tuple>
#include <dune/common/hybridutilities.hh>
#include <dune/common/std/utility.hh>
namespace Dune
{
/** @addtogroup Common
@{
*/
//! Print a std::tuple
template<typename Stream, typename... Ts>
inline Stream& operator<<(Stream& stream, const std::tuple<Ts...>& t)
{
stream<<"[";
if(sizeof...(Ts)>0)
{
Hybrid::forEach(Std::make_index_sequence<sizeof...(Ts)-1>{},
[&](auto i){stream<<std::get<i>(t)<<",";});
stream<<std::get<sizeof...(Ts)-1>(t);
}
stream<<"]";
return stream;
}
//! Read a std::tuple
template<typename Stream, typename... Ts>
inline Stream& operator>>(Stream& stream, std::tuple<Ts...>& t)
{
Hybrid::forEach(Std::make_index_sequence<sizeof...(Ts)>{},
[&](auto i){stream>>std::get<i>(t);});
return stream;
}
//! Print a std::array
template<typename Stream, typename T, std::size_t N>
inline Stream& operator<<(Stream& stream, const std::array<T,N>& a)
{
stream<<"[";
if(N>0)
{
for(std::size_t i=0; i<N-1; ++i)
stream<<a[i]<<",";
stream<<a[N-1];
}
stream<<"]";
return stream;
}
/** @} */
} // end namespace Dune
#endif
|