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coin-or / Cgl

Cut Generator Library
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Attempt to instantiate abstract class in CglCliqueHelper.cpp #1

Closed svigerske closed 5 years ago

svigerske commented 5 years ago

Issue created by migration from Trac.

Original creator: dan.gordon

Original creation time: 2006-06-22 01:19:36

Assignee: somebody

Version:

When I try to compile in CglClique under Mac OSX 10.4, I get the following error:

CglCliqueHelper.cpp:86: error: cannot allocate an object of abstract type 'const CoinPackedVectorBase'
/devel/COIN/Coin-CoinAll/CoinUtils/src/CoinPackedVectorBase.hpp:25: note:   because the following virtual functions are pure within 'const CoinPackedVectorBase':
/devel/COIN/Coin-CoinAll/CoinUtils/src/CoinPackedVectorBase.hpp:31: note:  virtual int CoinPackedVectorBase::getNumElements() const
...

This is obviously because CoinPackedVectorBase::GetVector(...) returns by value. Hence the error is fixed by changing lines like

const CoinPackedVectorBase& vec = mcol.getVector(sp_orig_col_ind[j]);

to

const CoinShallowPackedVector vec = mcol.getVector(sp_orig_col_ind[j]);

svigerske commented 5 years ago

Comment by fmargot created at 2006-06-22 12:42:53

Changing assignee from somebody to fmargot.

svigerske commented 5 years ago

Comment by fmargot created at 2006-06-22 12:43:06

Resolution: fixed