osmium::index Namespace Reference

Indexing of OSM data, Locations, etc. More...

Namespaces
namespace	map
	Key-value containers with unique integer values for a key.
namespace	multimap
	Key-value containers with multiple values for an integer key.

Classes
class	IdSet
class	IdSetDense
class	IdSetDenseIterator
class	IdSetSmall
class	MapFactory
class	RelationsMapIndex
class	RelationsMapIndexes
class	RelationsMapStash

Functions
template<typename T >
constexpr T	empty_value ()
template<>
constexpr size_t	empty_value< size_t > ()
template<typename TId , typename TValue , template< typename, typename > class TMap>
bool	register_map (const std::string &name)

Detailed Description

Indexing of OSM data, Locations, etc.

Function Documentation

empty_value()

template<typename T >

constexpr T osmium::index::empty_value ( )

constexpr

Some of the index classes need an "empty" value that can never appear in real data. This function must return this empty value for any class used as a value in an index. The default implementation returns a default constructed object, but it can be specialized.

empty_value< size_t >()

template<>

constexpr size_t osmium::index::empty_value< size_t > ( )

constexpr

The size_t value in indexes is usually used for offsets into a buffer or file. It is unlikely that we ever need the full range, so the max value is a good "empty" value.

register_map()

template<typename TId , typename TValue , template< typename, typename > class TMap>

bool osmium::index::register_map ( const std::string &  name )

inline