Thrill
0.1
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Guarded loser tree/tournament tree, either copying the whole element into the tree structure, or looking up the element via the index.
This is a base class for the LoserTreeCopy<true> and <false> classes.
Guarding is done explicitly through one flag sup per element, inf is not needed due to a better initialization routine. This is a well-performing variant.
ValueType | the element type |
Comparator | comparator to use for binary comparisons. |
Definition at line 54 of file loser_tree.hpp.
#include <loser_tree.hpp>
Classes | |
struct | Loser |
Internal representation of a loser tree player/node. More... | |
Public Types | |
using | Source = uint32_t |
size of counters and array indexes More... | |
Public Member Functions | |
LoserTreeCopyBase (const Source &k, const Comparator &cmp=Comparator()) | |
void | init () |
Source | init_winner (const Source &root) |
Computes the winner of the competition at player root. More... | |
void | insert_start (const ValueType *keyp, const Source &source, bool sup) |
Initializes the player source with the element key. More... | |
Source | min_source () |
return the index of the player with the smallest element. More... | |
Static Public Attributes | |
static constexpr Source | invalid_ = Source(-1) |
sentinel for invalid or finished Sources More... | |
Protected Attributes | |
Comparator | cmp_ |
the comparator object More... | |
bool | first_insert_ |
still have to construct keys More... | |
const Source | ik_ |
number of nodes More... | |
const Source | k_ |
log_2(ik) next greater power of 2 More... | |
SimpleVector< Loser > | losers_ |