copy_graph

template <class VertexListGraph, class MutableGraph> 
void copy_graph(const VertexListGraph& G, MutableGraph& G_copy,
    const bgl_named_params<P, T, R>& params = all defaults)

This function copies all of the vertices and edges from graph G into G_copy. Also, it copies the vertex and edge properties, either by using the vertex_all and edge_all property maps, or by user-supplied copy functions.

Where Defined

boost/graph/copy.hpp

Parameters

IN: const VertexListGraph& G

A directed or undirected graph. The graph type must be a model of Vertex List Graph.

OUT: MutableGraph& G_copy

The resulting copy of the graph. The graph type must be a model of Mutable Graph.

Named Parameters

IN: vertex_copy(VertexCopier vc)

This is a Binary Function that copies the properties of a vertex in the original graph into the corresponding vertex in the copy.
Default: vertex_copier<VertexListGraph, MutableGraph> which uses the property tag vertex_all to access a property map from the graph.

IN: edge_copy(EdgeCopier ec)

This is a Binary Function that copies the properties of an edge in the original graph into the corresponding edge in the copy.
Default: edge_copier<VertexListGraph, MutableGraph> which uses the property tag edge_all to access a property map from the graph.

IN: vertex_index_map(VertexIndexMap i_map)

The vertex index map type must be a model of Readable Property Map and must map the vertex descriptors of G to the integers in the half-open range [0,num_vertices(G)).
Default: get(vertex_index, G). Note: Use this default, only if the graph has an internal vertex_index property. For example, adjacenty_list with VertexList=listS does not have an internal vertex_index property.

UTIL/OUT: orig_to_copy(Orig2CopyMap c)

This maps vertices in the original graph to vertices in the copy.
Default: an iterator_property_map created from a std::vector of the output graph's vertex descriptor type of size num_vertices(g) and using the i_map for the index map.

Complexity

The time complexity is O(V + E).