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Add is_empty function

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Ion Gaztañaga
2022-05-04 22:51:06 +02:00
parent 71a9ef5341
commit f8d3650131
1 changed files with 10 additions and 0 deletions
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10
include/boost/intrusive/circular_list_algorithms.hpp
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@@ -97,6 +97,16 @@ class circular_list_algorithms
NodeTraits::set_previous(this_node, this_node); NodeTraits::set_previous(this_node, this_node);
} }
//! <b>Effects</b>: Returns true if this_node_points to an empty list.
//!
//! <b>Complexity</b>: Constant
//!
//! <b>Throws</b>: Nothing.
BOOST_INTRUSIVE_FORCEINLINE static bool is_empty(const_node_ptr this_node) BOOST_NOEXCEPT
{
return NodeTraits::get_next(this_node) == this_node;
}
//! <b>Requires</b>: this_node must be in a circular list or be an empty circular list. //! <b>Requires</b>: this_node must be in a circular list or be an empty circular list.
//! //!
//! <b>Effects</b>: Returns true is "this_node" is the only node of a circular list: //! <b>Effects</b>: Returns true is "this_node" is the only node of a circular list: