Remove boost::tuple from VTKOutput

src/vtk/VTKOutput.cpp

@@ -1377,13 +1377,13 @@ void VTKOutput::writeVTUHeaderPiece( std::ostream& ofs, const uint_t numberOfCel
    {
       Base64Writer base64;
       for( auto vertex = vc.begin(); vertex != vc.end(); ++vertex )
-         base64 << numeric_cast<float>( ( *vertex ).get<0>() ) << numeric_cast<float>( ( *vertex ).get<1>() )
-                << numeric_cast<float>( ( *vertex ).get<2>() );
+         base64 << numeric_cast<float>( std::get<0>( *vertex ) ) << numeric_cast<float>( std::get<1>( *vertex ) )
+                << numeric_cast<float>( std::get<2>( *vertex ) );
       ofs << "     "; base64.toStream( ofs );
    }
    else for( auto vertex = vc.begin(); vertex != vc.end(); ++vertex )
-      ofs << "     " << numeric_cast<float>( ( *vertex ).get<0>() ) << " " << numeric_cast<float>( ( *vertex ).get<1>() )
-          << " " << numeric_cast<float>( ( *vertex ).get<2>() ) << "\n";
+      ofs << "     " << numeric_cast<float>( std::get<0>( *vertex ) ) << " " << numeric_cast<float>( std::get<1>( *vertex ) )
+          << " " << numeric_cast<float>( std::get<2>( *vertex ) ) << "\n";
 
    ofs << "    </DataArray>\n"
        << "   </Points>\n"

src/vtk/VTKOutput.h

@@ -35,7 +35,7 @@
 
 #include "core/Filesystem.h"
 #include <functional>
-#include <boost/tuple/tuple.hpp>
+#include <tuple>
 
 #include <fstream>
 #include <string>
@@ -55,16 +55,16 @@ private:
    typedef UID< VTKGEN > VTKUID;
 
    // types used during vertex-index mapping procedure when writing (P)VTU files
-   typedef boost::tuple< cell_idx_t, cell_idx_t, cell_idx_t > Vertex;
-   typedef boost::tuple< real_t,     real_t,     real_t >     VertexCoord;
+   typedef std::tuple< cell_idx_t, cell_idx_t, cell_idx_t > Vertex;
+   typedef std::tuple< real_t,     real_t,     real_t >     VertexCoord;
    typedef uint32_t Index;
 
    struct VertexCompare {
       bool operator()( const Vertex& lhs, const Vertex& rhs ) const
       {
-         if( lhs.get<0>() < rhs.get<0>() ||
-             ( lhs.get<0>() == rhs.get<0>() && lhs.get<1>() < rhs.get<1>() ) ||
-             ( lhs.get<0>() == rhs.get<0>() && lhs.get<1>() == rhs.get<1>() && lhs.get<2>() < rhs.get<2>() ) )
+         if( std::get<0>(lhs) < std::get<0>(rhs) ||
+             ( std::get<0>(lhs) == std::get<0>(rhs) && std::get<1>(lhs) < std::get<1>(rhs) ) ||
+             ( std::get<0>(lhs) == std::get<0>(rhs) && std::get<1>(lhs) == std::get<1>(rhs) && std::get<2>(lhs) < std::get<2>(rhs) ) )
             return true;
          return false;
       }