c++ - Initialization list to constructor -

i'm working on assignment in school supposed make constructor our own list-class takes initialization list argument.

this want able do:

list ourlist {1, 2, 3}; 

this have far:

list::list(std::initializer_list<int> il) {   head_ = copy(il.begin(), il.end()); }  list_node* list::copy(std::initializer_list<int>::iterator begin,                       std::initializer_list<int>::iterator end) {   if(begin == end)     return nullptr;    list_node* new_list = new list_node(*begin);    list_node* node = copy(begin++, end);   new_list->next_ = node;   return new_list; } 

in humble opinion, should work great. however, when try initialization (list list {1,2,3};) seg-fault. please explain i'm doing wrong here?

list_node* node = copy(begin++, end); 

this call copy again same arguments, recursing forever , never completing.

you should have been able tell using debugger see crashed, , have seen there hundreds of calls list::copy, not 3 calls expected.

you want ++begin not begin++