[bug #62204] Column arithmetic crashes when there are no rows

[Mohammad Akhlaghi]

URL:
  <https://savannah.gnu.org/bugs/?62204>

                 Summary: Column arithmetic crashes when there are no rows
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Sat 19 Mar 2022 08:24:48 PM UTC
                Category: Table
                Severity: 3 - Normal
              Item Group: Crash
                  Status: In Progress
                 Privacy: Public
             Assigned to: makhlaghi
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

When Table's column arithmetic is run on a table without any rows, it crashes
with a segmentation fault. The problem can be reproduced with the commands in
the P.S.

It is generally fine for a table to have no rows, so it is expected that when
the input table has no rows, the output of column arithmetic should also have
no rows.

This bug (and the scripts to reproduce it) was reported by Zohre Ghaffari.

P.S. Commands to reproduce this bug:


echo "# Column 1: col-1"  > $test.txt
echo "# Column 2: col-2" >> $test.txt
echo "# Column 3: col-3" >> $test.txt

# This command works:
asttable $test.txt -i

# But this crashes with segmentation fault
asttable $test.txt -c2 -c'arith $2 $1 -'





    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?62204>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/