How to count the number of files in a directory using standard?

Question

The new standard expected for 2017 adds std::filesystem. Using it, how can I count the number of files (including sub-directories) in a directory?

I kno

Answer 1

If you are using Visual Studio 17 you need to use the following namespace.

namespace fs = std::experimental::filesystem;

Then you could probably use a function like this one.

int Count() {
int count=0;
for (auto& p : fs::directory_iterator(dir)) {
    count++;

}
    return count;
}