Fix understanding of how long string variable missing values work.
authorBen Pfaff <blp@cs.stanford.edu>
Mon, 20 Feb 2023 18:44:38 +0000 (10:44 -0800)
committerBen Pfaff <blp@cs.stanford.edu>
Mon, 20 Feb 2023 19:28:47 +0000 (11:28 -0800)
commit76357f21c7391646acd8017d1c3e1386234f2e79
tree276b999ab6c386bf2839b53c748c3c3ae88d6869
parent37c8a21f16b972b259535527f38161c611b17e2a
Fix understanding of how long string variable missing values work.

Thanks to Andreas Hammer for reporting this bug at
https://lists.gnu.org/archive/html/pspp-users/2023-02/msg00000.html.

The data file that triggered this bug is ESS10SC.sav, available from
https://ess-search.nsd.no/en/study/172ac431-2a06-41df-9dab-c1fd8f3877e7
doc/dev/system-file-format.texi
src/data/sys-file-reader.c
src/data/sys-file-writer.c
tests/data/sys-file-reader.at
utilities/pspp-dump-sav.c