[postgis-tickets] [PostGIS] #4003: lwpoly_construct_circle: Division by zero

[PostGIS]

#4003: lwpoly_construct_circle: Division by zero
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 Reporter:  Algunenano  |      Owner:  strk
     Type:  defect      |     Status:  new
 Priority:  medium      |  Milestone:  PostGIS 2.5.0
Component:  liblwgeom   |    Version:  trunk
 Keywords:              |
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 Delay calculating theta until after the number of segments is checked.
 Since the division by zero is undefined the compiler could optimize away
 the `if (segments_per_quarter < 1)` check.

 Github PR: https://github.com/postgis/postgis/pull/199

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4003>
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