These proxies are returned by operator[](...). These proxies all "behave" the same. They store a pointer to the data of the valarray they are a proxy for and they have an internal array of indices. This internal array is considered its contents.
These proxies are returned by operator[](...). These proxies all "behave" the same. They store a pointer to the data of the valarray they are a proxy for and they have an internal array of indices. This internal array is considered its contents.