/in/foo.cc: In function 'int main()':
/in/foo.cc:23:22: error: expected unqualified-id before '[' token
     for (const auto& [ti, ai, wi] : cylinders) {
                      ^
/in/foo.cc:23:22: error: expected ';' before '[' token
/in/foo.cc:23:23: error: 'ti' was not declared in this scope
     for (const auto& [ti, ai, wi] : cylinders) {
                       ^~
/in/foo.cc:23:27: error: 'ai' was not declared in this scope
     for (const auto& [ti, ai, wi] : cylinders) {
                           ^~
/in/foo.cc:23:31: error: 'wi' was not declared in this scope
     for (const auto& [ti, ai, wi] : cylinders) {
                               ^~
/in/foo.cc: In lambda function:
/in/foo.cc:23:35: error: expected '{' before ':' token
     for (const auto& [ti, ai, wi] : cylinders) {
                                   ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:23:35: error: expected ';' before ':' token
/in/foo.cc:23:35: error: expected primary-expression before ':' token
/in/foo.cc:23:35: error: expected ')' before ':' token
/in/foo.cc:23:35: error: expected primary-expression before ':' token