[Dune] [#556] GenericReferenceElements leak memory

[Dune]

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A new Flyspray task has been opened.  Details are below. 

User who did this - Oliver Sander (sander) 

Attached to Project - Dune
Summary - GenericReferenceElements leak memory
Task Type - Bug Report
Category - Grid
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN
Due in Version - Undecided
Due Date - Undecided
Details - The GenericReferenceElement seems to leak memory.  You can witness this when running the OneDGrid test under valgrind.  Here's what you get:

sander at haile:/export/local-1/daten/users/sander/dune/dune-grid/grid/test$ valgrind --leak-check=full ./test-oned                         
==7333== Memcheck, a memory error detector.                                                                                              
==7333== Copyright (C) 2002-2008, and GNU GPL'd, by Julian Seward et al.                                                                 
==7333== Using LibVEX rev 1884, a library for dynamic binary translation.                                                                
==7333== Copyright (C) 2004-2008, and GNU GPL'd, by OpenWorks LLP.                                                                       
==7333== Using valgrind-3.4.1-Debian, a dynamic binary instrumentation framework.                                                        
==7333== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al.                                                                 
==7333== For more details, rerun with: -v                                                                                                
==7333==                                                                                                                                 
==7333==                                                                                                                                 
==7333== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 17 from 1)                                                                 
==7333== malloc/free: in use at exit: 68 bytes in 1 blocks.                                                                              
==7333== malloc/free: 10,939 allocs, 10,938 frees, 1,080,876 bytes allocated.
==7333== For counts of detected errors, rerun with: -v
==7333== searching for pointers to 1 not-freed blocks.
==7333== checked 395,180 bytes.
==7333==
==7333== 68 bytes in 1 blocks are definitely lost in loss record 1 of 1
==7333==    at 0x402534E: operator new[](unsigned int) (vg_replace_malloc.c:268)
==7333==    by 0x80838C5: Dune::SmallObjectPool::allocate(unsigned int) (smallobject.hh:71)
==7333==    by 0x80838EF: Dune::SmallObject::operator new(unsigned int) (smallobject.hh:98)
==7333==    by 0x808395C: void Dune::GenericReferenceElement<double, 0>::initialize<(Dune::GeometryType::BasicType)0>() (genericreferenceelements.hh:272)
==7333==    by 0x80839E1: Dune::GenericReferenceElementContainer<double, 0>::GenericReferenceElementContainer() (genericreferenceelements.hh:615)
==7333==    by 0x8083A48: Dune::GenericReferenceElementContainer<double, 0>::instance() (genericreferenceelements.hh:608)
==7333==    by 0x8083AC9: Dune::GenericReferenceElements<double, 0>::general(Dune::GeometryType const&) (genericreferenceelements.hh:632)
==7333==    by 0x8083B15: void checkGeometry<Dune::Geometry<0, 1, Dune::OneDGrid const, Dune::OneDGridGeometry> >(Dune::Geometry<0, 1, Dune::OneDGrid const, Dune::OneDGridGeometry> const&) (checkintersectionit.cc:39)
==7333==    by 0x8085AA3: void checkIntersectionIterator<Dune::GridView<Dune::DefaultLevelGridViewTraits<Dune::OneDGrid const, (Dune::PartitionIteratorType)4> >, CheckIntersectionIteratorErrorState>(Dune::GridView<Dune::DefaultLevelGridViewTraits<Dune::OneDGrid const, (Dune::PartitionIteratorType)4> > const&, Dune::GridView<Dune::DefaultLevelGridViewTraits<Dune::OneDGrid const, (Dune::PartitionIteratorType)4> >::Codim::Iterator const&, CheckIntersectionIteratorErrorState&) (checkintersectionit.cc:305)
==7333==    by 0x8086FCD: void checkViewIntersectionIterator<Dune::GridView<Dune::DefaultLevelGridViewTraits<Dune::OneDGrid const, (Dune::PartitionIteratorType)4> > >(Dune::GridView<Dune::DefaultLevelGridViewTraits<Dune::OneDGrid const, (Dune::PartitionIteratorType)4> > const&) (checkintersectionit.cc:462)
==7333==    by 0x8089B96: void checkIntersectionIterator<Dune::OneDGrid>(Dune::OneDGrid const&, bool) (checkintersectionit.cc:486)
==7333==    by 0x804947B: testOneDGrid(Dune::OneDGrid&) (test-oned.cc:55)
==7333==
==7333== LEAK SUMMARY:
==7333==    definitely lost: 68 bytes in 1 blocks.
==7333==      possibly lost: 0 bytes in 0 blocks.
==7333==    still reachable: 0 bytes in 0 blocks.
==7333==         suppressed: 0 bytes in 0 blocks.


More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=556

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