View Compilation Error

0_0_36719550_12592.cpp: In function 'T _rand(T, T)':
0_0_36719550_12592.cpp:50:30: error: there are no arguments to 'timefuck' that depend on a template parameter, so a declaration of 'timefuck' must be available [-fpermissive]
 static mt19937 eng(timefuck(0));
                              ^
0_0_36719550_12592.cpp:50:30: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
0_0_36719550_12592.cpp: In instantiation of 'T _rand(T, T) [with T = long long int]':
0_0_36719550_12592.cpp:76:19:   required from here
0_0_36719550_12592.cpp:50:30: error: 'timefuck' was not declared in this scope