Format conversion from huge edge list to totem format

[sgpyc]

I have encountered some issues using src/scripts/graph_conversion/txt2totem.sh to convert huge edge list (of ~2billion edges) to totem format.

Attached is a small program in C++ (need --std=c++11 to g++ to compile) that convert edge list (without edge values) to .totem format following the specification. Please help to verify whether it meets the .totem format standard.

convert_coo2totem.cpp.zip

[siegfriedgreg]

@sgpyc - I appreciate you sharing your code for the converter as I wasnt able to get the scripts to convert my file types and yours worked well! I modified it a little to add directed or undirected parameter specifications for converting.