'for_each_n' is not a member of 'std' in C++17

Question

I have small piece of code for std::for_each_n loop. I tried running it on inbuilt Coliru compiler GCC C++17 using following command :

g++ -std         


        

Answer 1

There is nothing wrong with your code. The issue is that libstdc++ does not support std::for_each_n as of yet. If we look at header that defines std::for_each we see it does not exist.

However, if you have access to libc++, their header from the official mirror does implement std::for_each_n