Name
const_accessor — Provides read-only access to a pair in a concurrent_hash_map.
Synopsis
#include "tbb/concurrent_hash_map.h" template<typename Key, typename T, typename HashCompare> class concurrent_hash_ map<Key,T,HashCompare>::const_accessor;
Members
namespace tbb {
template<typename Key, typename T, typename HashCompare>
class concurrent_hash_map<Key,T,HashCompare>::const_accessor {
public:
// types
typedef const std::pair<const Key,T> value_type;
// construction and destruction
const_accessor();
~const_accessor();
// inspection
bool empty() const;
const value_type& operator*() const;
const value_type* operator->() const;
// early release
void release();
};
}-
bool empty() const Returns:
trueif the instance points to nothing;falseif the instance points to a key-value pair.-
void release() Effects: if the instance contains a key-value pair, releases the implied lock on the pair and sets the instance to point to nothing. Otherwise, does nothing.
-
constvalue_type&operator*() const Effects: raises an assertion failure if
empty()is true andTBB_DO_ASSERTis defined as nonzero.Returns:
constreference to a key-value pair.-
constvalue_type*operator->() const Returns:
&operator*()*-
const_accessor() Effects: constructs a
const_accessorthat points to nothing.-
~const_accessor Effects: if pointing to a key-value pair, releases the implied lock on the pair.
..................Content has been hidden....................
You can't read the all page of ebook, please click here login for view all page.