1.1 --- a/lemon/lp_soplex.cc	Tue Apr 08 15:16:16 2008 +0000
     1.2 +++ b/lemon/lp_soplex.cc	Tue Apr 08 16:01:28 2008 +0000
     1.3 @@ -36,16 +36,33 @@
     1.4    LpSoplex::~LpSoplex() {
     1.5      delete soplex;
     1.6    }
     1.7 +
     1.8 +  LpSoplex::LpSoplex(const LpSoplex& lp) : LpSolverBase() {
     1.9 +    rows = lp.rows;
    1.10 +    rows.setIdHandler(relocateIdHandler);
    1.11 +
    1.12 +    cols = lp.cols;
    1.13 +    cols.setIdHandler(relocateIdHandler);
    1.14 +
    1.15 +    soplex = new soplex::SoPlex;
    1.16 +    (*static_cast<soplex::SPxLP*>(soplex)) = *(lp.soplex);
    1.17 +
    1.18 +    colNames = lp.colNames;
    1.19 +    invColNames = lp.invColNames;
    1.20 +
    1.21 +    primal_value = lp.primal_value;
    1.22 +    dual_value = lp.dual_value;
    1.23 +
    1.24 +  }
    1.25    
    1.26 -  LpSolverBase &LpSoplex::_newLp() {
    1.27 +  LpSolverBase* LpSoplex::_newLp() {
    1.28      LpSoplex* newlp = new LpSoplex();
    1.29 -    return *newlp;
    1.30 +    return newlp;
    1.31    }
    1.32  
    1.33 -  LpSolverBase &LpSoplex::_copyLp() {
    1.34 -    LpSoplex* newlp = new LpSoplex();
    1.35 -    (*static_cast<soplex::SPxLP*>(newlp->soplex)) = *soplex;
    1.36 -    return *newlp;
    1.37 +  LpSolverBase* LpSoplex::_copyLp() {
    1.38 +    LpSoplex* newlp = new LpSoplex(*this);
    1.39 +    return newlp;
    1.40    }
    1.41  
    1.42    int LpSoplex::_addCol() {