tdf#136404 DOCX import: ignore NaN cells in table formula

Ignore empty cells or cells with text content in data range
of AVERAGE, COUNT and PRODUCT (the new interoperability
functions in Writer), like MSO does, instead of using
NaN data as zeroes here.

Add AVERAGE, as a new function instead of alias of MEAN
to return error message instead of zero for NaN-only
arguments, like Calc does (Note: also MSO gives empty
result instead of zero).

Change-Id: I5e18f3e2b16cb0621dad2bba141ae63fb5edd241
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/102012
Tested-by: Jenkins
Reviewed-by: László Németh <nemeth@numbertext.org>

0 files changed, 0 insertions, 0 deletions