start a list from the second element

micheal15

I would like the var to start from the second line of my list I tried with list.at(1) but it does not work

std::sort(list.begin, list.end()) ;
double var =list.at(1)

how can i do it please ?

mrjj

Hi
" but it does not work"

what happens ?

mchinand

Add debugging to output your original list, and your sorted list. Is the sorted result what you expect?

micheal15

can we do : list.(first()-1) or list.(last()-1) ?

mchinand

@micheal15 No one knows since you're not telling us what isn't working

Kent-Dorfman

what is list? a vector, a list? what? not looking at the docs, but I'm not sure that std::list even supports the at() method...and upon checking...no, it does not.

Kent-Dorfman

for what its worth: use the ugly option below, or switch to a container that supports random element access

auto obj = list.front();
list.pop_front();
auto atOne = list.front();
list.push_front(obj);