View Compilation Error

0_0_35925445_9224.cpp:13:23: error: 'fun' function uses 'auto' type specifier without trailing return type
 auto fun(long double h) {
                       ^
0_0_35925445_9224.cpp:13:23: note: deduced return type only available with -std=c++1y or -std=gnu++1y
0_0_35925445_9224.cpp:33:23: error: 'get' function uses 'auto' type specifier without trailing return type
 auto get(long double d) {
                       ^
0_0_35925445_9224.cpp:33:23: note: deduced return type only available with -std=c++1y or -std=gnu++1y