NAME
__gnu_parallel::LoserTree -
SYNOPSIS
Inherits __gnu_parallel::LoserTreeBase< T, Comparator >.
Detailed Description
template<bool stable, typename T, typename Comparator> class __gnu_parallel::LoserTree< stable, T, Comparator >
Stable LoserTree variant.
Provides the stable implementations of insert_start, init_winner, init and delete_min_insert.
Unstable variant is done using partial specialisation below.
Definition at line 171 of file losertree.h.
Public Member Functions
void delete_min_insert (T key, bool sup)
int get_min_source ()
void init ()
unsigned int init_winner (unsigned int root)
void insert_start (const T &key, int source, bool sup)
LoserTree (unsigned int _k, Comparator _comp)
Protected Attributes
unsigned int _M_log_k
Comparator comp
bool first_insert
unsigned int ik
unsigned int k
Loser * losers
unsigned int offset
Member Function Documentation
template<bool stable, typename T, typename Comparator> void __gnu_parallel::LoserTree< stable, T, Comparator >::delete_min_insert (T key, bool sup) [inline]
Delete the smallest element and insert a new element from the previously smallest element's sequence.
This implementation is stable.
Definition at line 221 of file losertree.h.
template<typename T, typename Comparator> int __gnu_parallel::LoserTreeBase< T, Comparator >::get_min_source () [inline, inherited]
Returns:
the index of the sequence with the smallest element.
Definition at line 158 of file losertree.h.
References __gnu_parallel::LoserTreeBase< T, Comparator >::losers, and __gnu_parallel::LoserTreeBase< T, Comparator >::Loser::source.
template<typename T, typename Comparator> void __gnu_parallel::LoserTreeBase< T, Comparator >::insert_start (const T & key, int source, bool sup) [inline, inherited]
Initializes the sequence 'source' with the element 'key'.
Parameters:
key the element to insert
source index of the source sequence
sup flag that determines whether the value to insert is an explicit supremum.
Definition at line 137 of file losertree.h.
References __gnu_parallel::LoserTreeBase< T, Comparator >::first_insert, __gnu_parallel::LoserTreeBase< T, Comparator >::Loser::key, __gnu_parallel::LoserTreeBase< T, Comparator >::losers, __gnu_parallel::LoserTreeBase< T, Comparator >::Loser::source, and __gnu_parallel::LoserTreeBase< T, Comparator >::Loser::sup.
Member Data Documentation
template<typename T, typename Comparator> unsigned int __gnu_parallel::LoserTreeBase< T, Comparator >::_M_log_k [protected, inherited]
log_2{k}
Definition at line 80 of file losertree.h.
Referenced by __gnu_parallel::LoserTreeBase< T, Comparator >::LoserTreeBase().
template<typename T, typename Comparator> Comparator __gnu_parallel::LoserTreeBase< T, Comparator >::comp [protected, inherited]
Comparator to use.
Definition at line 86 of file losertree.h.
template<typename T, typename Comparator> bool __gnu_parallel::LoserTreeBase< T, Comparator >::first_insert [protected, inherited]
State flag that determines whether the LoserTree is empty.
Only used for building the LoserTree.
Definition at line 93 of file losertree.h.
Referenced by __gnu_parallel::LoserTreeBase< T, Comparator >::insert_start(), and __gnu_parallel::LoserTreeBase< T, Comparator >::LoserTreeBase().
template<typename T, typename Comparator> Loser* __gnu_parallel::LoserTreeBase< T, Comparator >::losers [protected, inherited]
LoserTree elements.
Definition at line 83 of file losertree.h.
Referenced by __gnu_parallel::LoserTreeBase< T, Comparator >::get_min_source(), __gnu_parallel::LoserTreeBase< T, Comparator >::insert_start(), __gnu_parallel::LoserTreeBase< T, Comparator >::LoserTreeBase(), and __gnu_parallel::LoserTreeBase< T, Comparator >::~LoserTreeBase().
Author
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