bnfinit question

["Ian G Connell, Prof" <ian.connell@mcgill.ca>]

When the number field is too big, for example in a script read

by pari-gp

 b=bnfinit(122901+5*W+W^2+W^4);

b.fu gives the warning: ..too large, not given

Is it possible to write commands in the script so that when this

happens, b.fu is given a special value such as 0?

(Actually in my case the script is written by a Maple program

which then calls pari-gp; the script ends with a Write command

which writes (among other variables) b.fu to a file to be read

by Maple.)