prog.cpp: In lambda function:
prog.cpp:12:32: error: parameter packs not expanded with '...':
prog.cpp:12:32: note: 'MemArgs'
prog.cpp:13:28: error: parameter packs not expanded with '...':
prog.cpp:13:28: note: 'Ns'
prog.cpp:15:69: error: expansion pattern '((const IntPack<Ns>::variadic_memfun(MemTs ...)::<lambda()>*)this)->IntPack<Ns>::variadic_memfun(MemTs ...)::<lambda()>::MemArgs' contains no argument packs
prog.cpp: In static member function 'static int IntPack<Ns>::variadic_memfun(MemTs ...)':
prog.cpp:18:9: error: expansion pattern '#'lambda_expr' not supported by dump_expr#<expression error>()' contains no argument packs