Properly check exponential function array boundaries. Fixes 690555.
Properly check exponential function array boundaries. Fixes 690555.

darcs-hash:20090621214110-86a4e-86ab42a5de08ca1d9495c9d67e925fb6eb6549e7.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf