couldn't find material.cpp file

i have tried to fixe the Error in S(alpha,beta) table during Burnup calculation of U-ZrH fuel (openmc version 0.12.0-dev)
but i couldn’t find the material.cpp file ,i have an openmc-py3.7 installed in my lap, openmc-dev under miniconda.
best regards

Hello Laouzi,

Paul has already fixed this error and submitted a PR. Link

You will find material.cpp file under openmc/src folder.

-Pranto