Question
Count matching elements after splitting
I want to combine std::views::split
or std::views::lazy_split
with std::ranges::count
but I cannot get it to work.
This is what I currently have:
std::string setting;
std::string extension;
const auto count = std::range::count(setting | std::views::split(' '), extension);
And unfortunately the MSVC error is not really helpful:
error C3889: call to object of class type 'std::ranges::_Count_fn': no matching call operator found
How can I count the elements that match extension
after splitting (without having to store the parts into a container)?