[Rd] eigen of matrix of Inf hangs (PR#5406)

[pburns at pburns.seanet.com]

Full_Name: Patrick Burns
Version: 1.8.1
OS: Windows 2000
Submission from: (NULL) (81.129.3.151)


The command:

eigen(matrix(Inf, 2, 2))

causes version 1.8.1 to hang in both Windows 2000 and SuSe 8.2.
(Hang defined as apparently needing to kill the process in order
to get a prompt back.)


This is similar to bug #4366 where the same command used NaN
instead of Inf.