PSPP-BUG: [bug #12858] LAG in a compound expression fires an assertion.

[John Darrington]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=12858>

                 Summary: LAG in a compound expression fires an assertion.
                 Project: PSPP
            Submitted by: jmd
            Submitted on: Thu 04/28/05 at 08:00
                Category: Syntax Parser
                Severity: 7 - Major
                  Status: None
             Assigned to: blp
             Open/Closed: Open

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Details:

This syntax causes an assertion failure:

DATA LIST LIST /x.
BEGIN DATA
2 
END DATA.

DO IF (x <> LAG(x) ).
        ECHO 'hello'.
END IF.

EXECUTE.

It seems that n_lag is not getting initialised in expressions/parse.c (or
anywhere).






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