I'm trying to build ripser with g++ -Wall ripser.cpp -o ripser -g but i get the following error:

ripser.cpp: In constructor 'ripser<compressed_distance_matrix<(compressed_matrix_layout)0u> >::simplex_coboundary_enumerator::simplex_coboundary_enumerator(diameter_entry_t, index_t, const ripser<compressed_distance_matrix<(compressed_matrix_layout)0u> >&)': ripser.cpp:845:62: error: no matching function for call to 'diameter_entry_t::diameter_entry_t()' binomial_coeff(_parent.binomial_coeff), parent(_parent) { ^ ripser.cpp:182:37: note: candidate: template<class _U1, class _U2, typename std::enable_if<(_ConstructiblePair<_U1, _U2>() && _ImplicitlyConvertiblePair<_U1, _U2>()), bool>::type <anonymous> > constexpr diameter_entry_t::diameter_entry_t(const float&, const entry_t&) using std::pair<value_t, entry_t>::pair; ^~~~ ripser.cpp:182:37: note: template argument deduction/substitution failed: ripser.cpp:845:62: note: candidate expects 2 arguments, 0 provided binomial_coeff(_parent.binomial_coeff), parent(_parent) { ^ ripser.cpp:182:37: note: candidate: template<class _U1, class _U2, typename std::enable_if<(_ConstructiblePair<_U1, _U2>() && (! _ImplicitlyConvertiblePair<_U1, _U2>())), bool>::type <anonymous> > constexpr diameter_entry_t::diameter_entry_t(const float&, const entry_t&) using std::pair<value_t, entry_t>::pair; ^~~~