Two stacked colons reaching inside a namespace or class.
Also known as: Double colon
Two colons name something inside a namespace, class or module — the C++ and Rust way of writing a path through the structure of a program rather than through a filesystem.
Separates a namespace, class or module from a name inside it, so the left side gives the scope in which the right side is looked up.
Contexts: Software
Four dots arranged as two upright pairs side by side, each pair one dot above another.
Both are built from lines and dots, and both are used in software contexts.