Out of range vector access in gmm_precond_ilu.h

Questions and issues
1

The latest libstdc++ has debug assertions enabled by default and I saw that the gmm_precond_ilu.h tries to access out of range indices.

I opened a bug report here with the details on how to reproduce the issue. If it was the wrong place, please let me know where I can submit the bug report. Thank you.

2

hello and welcome, you reported the bug correctly, we just missed seeing it. Thanks for the heads up.

3

Hello, thanks for the confirmation. Please take your time, I just wanted to make sure you are aware of it.