Replacement of old matlab built-in function cholinc for Cholesky-Infinity factorization

Greetings,

I am working on an old program, which uses a old matlab built-in function cholinc for Cholesky-Infinity factorization, eg. cholinc(B,'inf'). I am looking for an equivalent function.

It seems that function ichol is a new equivalent version of function cholinc. But I don't totally understand the document of cholinc. How can I adpat to function ichol for Cholesky-Infinity factorization?

Thank you