Compile error

[Syntaax 5]

exchange.cpp:311:21: error: no member named 'make_unique' in namespace 'std'
                        s_grid[i] = std::make_unique<CGrid>(INVENTORY_WI...
                                    ~~~~~^
exchange.cpp:311:33: error: 'CGrid' does not refer to a value
                        s_grid[i] = std::make_unique<CGrid>(INVENTORY_WI...
                                                     ^
./exchange.h:3:7: note: declared here
class CGrid;
      ^
exchange.cpp:320:26: error: no member named 'make_unique' in namespace 'std'
        s_grid[i] = std::make_unique<CGrid>(INVENTORY_WIDTH,new_size);
                    ~~~~~^
exchange.cpp:320:38: error: 'CGrid' does not refer to a value
        s_grid[i] = std::make_unique<CGrid>(INVENTORY_WIDTH,new_size);
                                     ^
./exchange.h:3:7: note: declared here
class CGrid;

 

Any idea ?

[blanco 178]

you need C++11 for that