If a snake swallows someone in a dream, it means that he will reach a powerful position. If one sees a snake sitting over his head in a dream, it means that he will earn the respect of people in authority. A field which is covered with snakes in a dream represents a destructive rain.
Make the class of the single instance responsible for access and initialization on first use. The single instance is a private static attribute. The accessor function is a public static method. The Singleton pattern ensures that a class has only one instance and provides a global point of access to that instance. It is named after the singleton set, which is defined to be a set containing one element. The office of the President of the United States is a Singleton.
Fundamentally, C++11 braced lists are formatted exactly like function calls would be formatted in their place. If the braced list follows a name (e.g. a type or variable name), clang-format formats as if the {} were the parentheses of a function call with that name. If there is no name, a zero-length name is assumed.