Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is an older version of Boost and was released in 2020. The current version is 1.89.0.

empty(rtree<...> const &)

empty(rtree<...> const &)

Query if there are no values stored in the index.

Description

It calls rtree::empty().

Synopsis

template<typename Value,
         typename Parameters,
         typename IndexableGetter,
         typename EqualTo,
         typename Allocator>
bool empty(rtree< Value, Parameters, IndexableGetter, EqualTo, Allocator > const & tree)

Parameter(s)

Type	Name	Description
`rtree< Value, Parameters, IndexableGetter, EqualTo, Allocator > const &`	`tree`	The spatial index.

Returns

true if there are no values in the index.