Or-tools: Segmentation Fault with SetArcCostEvaluatorOfAllVehicles

[cwelton]

This is a peculiar one:

This works:

callback = CreateLocationCallback(locations)
dist_callback = callback.distance
routing.SetArcCostEvaluatorOfAllVehicles(dist_callback)
...
assignment = routing.SolveWithParameters(search_parameters)

This does not

callback = CreateLocationCallback(locations)
routing.SetArcCostEvaluatorOfAllVehicles(callback.distance)
...
assignment = routing.SolveWithParameters(search_parameters)

Occurs on OSX, perhaps something to do with not using python reference counts correctly??

[b00401062]

I also encountered the same problem. Your tentative solution saves my life...

[lperron]

Most likely quirks in the GC.

As the API has changed a lot since 7.0, I will close the bug.