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osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp > Class Template Reference

`#include <filter.hpp>`

## Classes

struct | Rule

## Public Types

using | filter_type = Filter<TKey, TValue, TKeyComp, TValueComp>
using | argument_type = const osmium::Tag&
using | result_type = bool
using | iterator = osmium::memory::CollectionFilterIterator<filter_type, const osmium::Tag>

## Public Member Functions

| Filter (bool default_result=false)
template<typename V = TValue, typename std::enable_if_t<!std::is_void< V >::value, int > = 0>
Filter & | add (bool result, const key_type &key, const value_type &value)
Filter & | add (bool result, const key_type &key)
bool | operator() (const osmium::Tag &tag) const
size_t | count () const noexcept
bool | empty () const noexcept

## Private Types

using | key_type = TKey
using | value_type = std::conditional_t<std::is_void<TValue>::value, bool, TValue>

## Private Attributes

std::vector< Rule > | m_rules
bool | m_default_result

## Detailed Description

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>
class osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >

Deprecated
  Use osmium::TagsFilter instead.

## Member Typedef Documentation

## argument_type

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::argument_type = const osmium::Tag&

## filter_type

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::filter_type = Filter<TKey, TValue, TKeyComp, TValueComp>

## iterator

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::iterator = osmium::memory::CollectionFilterIterator<filter_type, const osmium::Tag>

## key_type

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::key_type = TKey

private

## result_type

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::result_type = bool

## value_type

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

using osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::value_type = std::conditional_t<std::is_void<TValue>::value, bool, TValue>

private

## Constructor & Destructor Documentation

## Filter()

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::Filter | ( | bool | default_result = false | ) |

inlineexplicit

## Member Function Documentation

## add() [1/2]

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

Filter & osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::add | ( | bool | result,
|  | const key_type & | key )

inline

## add() [2/2]

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>
template<typename V = TValue, typename std::enable_if_t<!std::is_void< V >::value, int > = 0>

Filter & osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::add | ( | bool | result,
|  | const key_type & | key,
|  | const value_type & | value )

inline

## count()

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

size_t osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::count | ( |  | ) | const

inlinenoexcept

Return the number of rules in this filter.

Complexity: Constant.

## empty()

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

bool osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::empty | ( |  | ) | const

inlinenoexcept

Is this filter empty, ie are there no rules defined?

Complexity: Constant.

## operator()()

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

bool osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::operator() | ( | const osmium::Tag & | tag | ) | const

inline

## Member Data Documentation

## m_default_result

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

bool osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::m_default_result

private

## m_rules

template<typename TKey, typename TValue = void, typename TKeyComp = match_key<TKey>, typename TValueComp = match_value<TValue>>

std::vector<Rule> osmium::tags::Filter< TKey, TValue, TKeyComp, TValueComp >::m_rules

private

The documentation for this class was generated from the following file:

- include/osmium/tags/filter.hpp