Suppose you have one or multiple clients needing the same instances of multiples classes, this example shows how to create a single instance of each class and inject it into multiple other classes.a
- Magic
OperationBase *[]https://boost-experimental.github.io/di/examples/index.html#multiple-bindingsstd::shared_ptrensures the lifetime of the object is a singleton https://boost-experimental.github.io/di/tutorial/index.html#3-basic-decide-the-life-times