mirror of
https://github.com/boostorg/range.git
synced 2025-07-04 00:06:33 +02:00
57 lines
1.7 KiB
Plaintext
57 lines
1.7 KiB
Plaintext
|
[section:pop_heap pop_heap]
|
||
|
|
|
||
|
|
[heading Prototype]
|
||
|
|
|
||
|
|
``
|
||
|
|
template<class RandomAccessRange>
|
||
|
|
void pop_heap(RandomAccessRange& rng);
|
||
|
|
|
||
|
|
template<class RandomAccessRange>
|
||
|
|
void pop_heap(const RandomAccessRange& rng);
|
||
|
|
|
||
|
|
template<class RandomAccessRange, class Compare>
|
||
|
|
void pop_heap(RandomAccessRange& rng, Compare pred);
|
||
|
|
|
||
|
|
template<class RandomAccessRange, class Compare>
|
||
|
|
void pop_heap(const RandomAccessRange& rng, Compare pred);
|
||
|
|
``
|
||
|
|
|
||
|
|
[heading Description]
|
||
|
|
|
||
|
|
`pop_heap` removes the largest element from the heap. It is assumed that `begin(rng), prior(end(rng))` is already a heap and that the element to be added is `*prior(end(rng))`.
|
||
|
|
|
||
|
|
The ordering relationship is determined by using `operator<` in the non-predicate versions, and by evaluating `pred` in the predicate versions.
|
||
|
|
|
||
|
|
[heading Definition]
|
||
|
|
|
||
|
|
Defined in the header file `boost/range/algorithm/heap_algorithm.hpp`
|
||
|
|
|
||
|
|
[heading Requirements]
|
||
|
|
|
||
|
|
[*For the non-predicate versions:]
|
||
|
|
|
||
|
|
* `RandomAccessRange` is a model of the __random_access_range__ Concept.
|
||
|
|
* `RandomAccessRange` is mutable.
|
||
|
|
* `RandomAccessRange`'s value type is a model of the `LessThanComparableConcept`.
|
||
|
|
* The ordering of objects of type `RandomAccessRange`'s value type is a [*/strict weak ordering/], as defined in the `LessThanComparableConcept` requirements.
|
||
|
|
|
||
|
|
[*For the predicate versions:]
|
||
|
|
|
||
|
|
* `RandomAccessRange` is a model of the __random_access_range__ Concept.
|
||
|
|
* `RandomAccessRange` is mutable.
|
||
|
|
* `Compare` is a model of the `StrictWeakOrderingConcept`.
|
||
|
|
* `RandomAccessRange`'s value type is convertible to both of `Compare`'s argument types.
|
||
|
|
|
||
|
|
[heading Precondition:]
|
||
|
|
|
||
|
|
* `!empty(rng)`
|
||
|
|
* `rng` is a heap.
|
||
|
|
|
||
|
|
[heading Complexity]
|
||
|
|
|
||
|
|
Logarithmic. At most `2 * log(distance(rng))` comparisons.
|
||
|
|
|
||
|
|
[endsect]
|
||
|
|
|
||
|
|
|