[geos-devel] Re: [GEOS] #320: factory for std::vector

[GEOS]

#320: factory for std::vector
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 Reporter:  12345678    |        Owner:  geos-devel at lists.osgeo.org
     Type:  task        |       Status:  new                       
 Priority:  major       |    Milestone:                            
Component:  Default     |      Version:  3.2.0                     
 Severity:  Unassigned  |   Resolution:                            
 Keywords:              |  
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Comment (by mloskot):

 I confirm this is potentially an issue in cases where a factory functions
 take ownership of passed collection. For example:

 {{{
 class GEOS_DLL GeometryFactory {
 public:
 MultiLineString* createMultiLineString(std::vector<Geometry *> *newLines)
 const;
 };
 }}}

 If client will allocate the ''newLines'' in EXE/DLL module and pass it to
 GEOS DLL module which later will deallocate it, then memory is
 [http://blogs.msdn.com/oldnewthing/archive/2006/09/15/755966.aspx
 allocated/deallocated across module boundaries] what may lead to problems.

 A factory for those containers would be useful indeed.

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/320#comment:2>
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GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).