−one This will not reply the issue while in the title, “When is #include things like library required in C++?”. I suppose that that can be OK Using the OP. But it really's trouble when this problem is applied as referent for any close-as-replicate of some other question. The https://superdirectorys.com/listings13451929/getting-my-best-music-websites-for-write-song-lyrics-to-work