[igraph] how to access edge weight in C

[zhengjun chen]

Hi,

I use igraph_read_graph_ncol () to read *.ncol file.

The *.ncol has three columns, the first two are the edge list, the last one is the edge weight. After reading the graph, I want to access the weight of each edge.

Do Igraph provides an function to access the edge weight in C? I searched the manual of C, and did not find one. 

Thanks.