Boost C++ Libraries

Returns the iterator pointing at the begin of the rtree values range.

Description

This method returns the iterator which may be used to iterate over all values stored in the rtree.

Synopsis

const_iterator begin()

Modifier(s)

const

Returns

The iterator pointing at the begin of the range.

Example

// Copy all values into the vector
std::copy(tree.begin(), tree.end(), std::back_inserter(vec));

for ( Rtree::const_iterator it = tree.begin() ; it != tree.end() ; ++it )
{
    // do something with value
}

// C++11 (auto)
for ( auto it = tree.begin() ; it != tree.end() ; ++it )
{
    // do something with value
}

// C++14 (generic lambda expression)
std::for_each(tree.begin(), tree.end(), [](auto const& val){
    // do something with value
})

Iterator category

ForwardIterator

Throws

If allocation throws.

	Warning
	The modification of the rtree may invalidate the iterators.