View Compilation Error

0_0_18124473_25533.cpp: In function 'void zero_one_pack(int, int, int)':
0_0_18124473_25533.cpp:2:9: error: 'i' was not declared in this scope
     dff(i, V, v) {
         ^
0_0_18124473_25533.cpp:2:16: error: 'dff' was not declared in this scope
     dff(i, V, v) {
                ^
0_0_18124473_25533.cpp: In function 'void zero_one_pack2(int, int, int)':
0_0_18124473_25533.cpp:8:9: error: 'i' was not declared in this scope
     dff(i, V, v) {
         ^
0_0_18124473_25533.cpp:8:16: error: 'dff' was not declared in this scope
     dff(i, V, v) {
                ^