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* Fix operator precedence according to Brian W. Kernighan and LorindaIngo Schwarze2017-07-069-14/+16
| | | | | L. Cherry, "Typesetting Mathematics - User's Guide (Second Edition)", August 15, 1978, paragraph 23; swarm of bugs pointed out by bentley@.
* Messages of the -Wbase level now print STYLE:. Since thisIngo Schwarze2017-07-046-9/+12
| | | | | | | | causes horrible churn anyway, profit of the opportunity to stop excessive testing, such that this is hopefully the last instance of such churn. Consistently use OpenBSD RCS tags, blank .Os, blank fourth .TH argument, and Mdocdate like everywhere else. Use -Ios=OpenBSD for platform-independent predictable output.
* catch up with the recent eqn(7) improvementsIngo Schwarze2017-06-269-7/+29
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* Do not access a NULL pointer if a matrix or square root are empty.Ingo Schwarze2017-02-123-5/+5
| | | | Crashes found by tb@ with afl(1).
* Finally port the OpenBSD regression suite.Ingo Schwarze2017-02-087-0/+51
Both kristaps@ and wiz@ repeated asked for this, literally for years.