Upgrading the loop to use irange (#70326)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70326
See D24145988 for context: it allows loops such as for(int i=0;i<10;i++) to be expressed as for(const auto i : c10::irange(10)). This is nice because it auto-types the loops and adds const-safety to the iteration variable.
Test Plan: buck run //caffe2/torch/fb/sparsenn:test
Reviewed By: r-barnes
Differential Revision: D33243400
fbshipit-source-id: b1f1b4163f4bf662031baea9e5268459b40c69a3
