[postgis-tickets] [PostGIS] #4990: getfacecontainingpoint fails on i386

[PostGIS]

#4990: getfacecontainingpoint fails on i386
-----------------------------+---------------------------
  Reporter:  Bas Couwenberg  |      Owner:  strk
      Type:  defect          |     Status:  new
  Priority:  medium          |  Milestone:  PostGIS 3.2.0
 Component:  topology        |    Version:  master
Resolution:                  |   Keywords:
-----------------------------+---------------------------

Comment (by strk):

 The macro was good, the *caller* of the macro was not (and no compiler
 warnings by default, which we should fix -- #5002).

 After fixing the the call, with
 [9042ee9fae5f7350cd3b2cd6798fb24e093719c7/git], this is the debugging
 output:
 {{{
 DEBUG:  [lwgeom_topo.c:lwt_GetFaceContainingPoint:7097] Shortest line to
 closest edge 26: LINESTRING(7 31,7.1 31)
 DEBUG:  [lwgeom_topo.c:lwt_GetFaceContainingPoint:7103] Closest point on
 closest edge: POINT(7 31)
 DEBUG:  [lwgeom_topo.c:lwt_GetFaceContainingPoint:7209] Closest point is
 NOT a node
 DEBUG:  [lwgeom_topo.c:lwt_GetFaceContainingPoint:7236] Closest segment to
 edge 26 is 0
 DEBUG:  [lwgeom_topo.c:lwt_GetFaceContainingPoint:7239] Closest segment to
 edge 26 is LINESTRING(0 5.31406e-315, 5.32539e-315 5.31406e-315)
 }}}

 My PR was fixing the alignment-requiring reads of shortestLine but the
 problem seems to be in closestSegment...

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4990#comment:23>
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