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| histogram |
{{< callout type="info">}}
Header: histogram.h
From: 20.9.0
{{< /callout >}}
Member types
const_iterator The iterator used to traverse the histogram data.
key_type The index type for the histogram.
count_type The type used for the histogram counter.
value_type The type returned from the histogram.
Constants
Max_Size The maximum number of elements in the histogram.
histogram
template <typename TKey, typename TCount, size_t Max_Keys>
class histogram
Description
A histogram where the start index of the keys is defined in the constructor.
Member functions
histogram()
Description
Default constructor.
template <typename TIterator>
histogram(TIterator first, TIterator last)
Description
Construct from an iterator range.
histogram
template <typename TKey, typename TCount, size_t Max_Keys, size_t Start_Index>
class histogram
Description
A histogram where the start index of the keys is defined as a template parameter.
Member functions
histogram()
Description
Default constructor.
template <typename TIterator>
histogram(TIterator first, TIterator last)
Description
Construct from an iterator range.
histogram(const histogram& other)
Description
Copy constructor.
histogram(histogram&& other)
Description
Move constructor.
histogram& operator =(const histogram& rhs)
Description
Assignment operator.
histogram& operator =(histogram&& rhs)
Description
Move assignment operator.
void add(key_type key)
Description
Increment the count for the key.
template <typename TIterator>
void add(TIterator first, TIterator last)
Description
Increment the counts for the keys from an iterator range.
void operator ()(key_type key)
Description
Increment the count for the key.
template <typename TIterator>
void operator ()(TIterator first, TIterator last)
Description
Increment the counts for the keys from an iterator range.
value_type operator [](key_type key) const
Description
Get the count for a key.
const_iterator begin() const
const_iterator cbegin() const
Description
Get the iterator to the first histogram entry.
const_iterator end() const
const_iterator cend() const
Description
Get the iterator to the last + 1 histogram entry.
void clear()
Description
Clear the counts to zero.
ETL_CONSTEXPR size_t size() const
Get the number of items in the histogram.
Description
Always equal to max_size().
ETL_CONSTEXPR size_t max_size() const
Description
Get the number of items in the histogram.
size_t count() const
Description
Get the total of all the counts.
sparse_histogram
template <typename TKey, typename TCount, size_t Max_Keys>
class sparse_histogram
Description
A histogram where the keys are sparse or non-integral types.
Types
const_iterator The iterator used to traverse the histogram data.
key_type The index type for the histogram.
count_type The type used for the histogram counter.
value_type The type returned from the histogram. A pair containing the key and count.
Constants
Max_Size The maximum number of elements in the histogram.
Member functions
sparse_histogram()
Description
Default constructor.
template <typename TIterator>
sparse_histogram(TIterator first, TIterator last)
Description
Construct from an iterator range.
sparse_histogram(const sparse_histogram& other)
Description
Copy constructor.
sparse_histogram(sparse_histogram&& other)
Description
Move constructor.
sparse_histogram& operator =(const sparse_histogram& rhs)
Description
Assignment operator.
sparse_histogram& operator =(sparse_histogram&& rhs)
Description
Move assignment operator.
void add(key_type key)
Description
Increment the count for the key.
template <typename TIterator>
void add(TIterator first, TIterator last)
Description
Increment the counts for the keys from an iterator range.
void operator ()(key_type key)
Description
Increment the count for the key.
template <typename TIterator>
void operator ()(TIterator first, TIterator last)
Description
Increment the counts for the keys from an iterator range.
const value_type& operator [](key_type key) const
Description
Get the count for a key.
const_iterator begin() const
const_iterator cbegin() const
Description
Get the iterator to the first histogram entry.
const_iterator end() const
const_iterator cend() const
Description
Get the iterator to the last + 1 histogram entry.
void clear()
Description
Clear the counts to zero.
ETL_CONSTEXPR size_t size() const
Description
Get the number of items in the histogram.
ETL_CONSTEXPR size_t max_size() const
Description
Get the number of items in the histogram.
size_t count() const
Description
Get the total of all the counts.