/[escript]/trunk/escript/src/Data.cpp
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revision 2145 by jfenwick, Fri Nov 28 01:52:12 2008 UTC revision 2146 by jfenwick, Wed Dec 10 02:59:46 2008 UTC
# Line 47  using namespace escript; Line 47  using namespace escript;
47  // ensure the current object is not a DataLazy  // ensure the current object is not a DataLazy
48  // The idea was that we could add an optional warning whenever a resolve is forced  // The idea was that we could add an optional warning whenever a resolve is forced
49  #define FORCERESOLVE if (isLazy()) {resolve();}  #define FORCERESOLVE if (isLazy()) {resolve();}
50    #define AUTOLAZYON escriptParams.getAUTOLAZY()
51    #define MAKELAZYOP(X)   if (isLazy() || (AUTOLAZYON && m_data->isExpanded())) \
52      {\
53        DataLazy* c=new DataLazy(borrowDataPtr(),X);\
54        return Data(c);\
55      }
56    #define MAKELAZYOPOFF(X,Y) if (isLazy() || (AUTOLAZYON && m_data->isExpanded())) \
57      {\
58        DataLazy* c=new DataLazy(borrowDataPtr(),X,Y);\
59        return Data(c);\
60      }
61    
62    #define MAKELAZYBINSELF(R,X)   if (isLazy() || R.isLazy() || (AUTOLAZYON && (isExpanded() || R.isExpanded()))) \
63      {\
64        DataLazy* c=new DataLazy(m_data,R.borrowDataPtr(),X);\
65            m_data=c->getPtr();\
66        return (*this);\
67      }
68    
69    // like the above but returns a new data rather than *this
70    #define MAKELAZYBIN(R,X)   if (isLazy() || R.isLazy() || (AUTOLAZYON && (isExpanded() || R.isExpanded()))) \
71      {\
72        DataLazy* c=new DataLazy(m_data,R.borrowDataPtr(),X);\
73        return Data(c);\
74      }
75    
76    #define MAKELAZYBIN2(L,R,X)   if (L.isLazy() || R.isLazy() || (AUTOLAZYON && (L.isExpanded() || R.isExpanded()))) \
77      {\
78        DataLazy* c=new DataLazy(L.borrowDataPtr(),R.borrowDataPtr(),X);\
79        return Data(c);\
80      }
81    
82  Data::Data()  Data::Data()
83  {  {
# Line 663  Data::resolve() Line 694  Data::resolve()
694  Data  Data
695  Data::oneOver() const  Data::oneOver() const
696  {  {
697    if (isLazy())    MAKELAZYOP(RECIP)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),RECIP);  
     return Data(c);  
   }  
698    return C_TensorUnaryOperation(*this, bind1st(divides<double>(),1.));    return C_TensorUnaryOperation(*this, bind1st(divides<double>(),1.));
699  }  }
700    
701  Data  Data
702  Data::wherePositive() const  Data::wherePositive() const
703  {  {
704    if (isLazy())    MAKELAZYOP(GZ)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),GZ);  
     return Data(c);  
   }  
705    return C_TensorUnaryOperation(*this, bind2nd(greater<double>(),0.0));    return C_TensorUnaryOperation(*this, bind2nd(greater<double>(),0.0));
706  }  }
707    
708  Data  Data
709  Data::whereNegative() const  Data::whereNegative() const
710  {  {
711    if (isLazy())    MAKELAZYOP(LZ)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),LZ);  
     return Data(c);  
   }  
712    return C_TensorUnaryOperation(*this, bind2nd(less<double>(),0.0));    return C_TensorUnaryOperation(*this, bind2nd(less<double>(),0.0));
713  }  }
714    
715  Data  Data
716  Data::whereNonNegative() const  Data::whereNonNegative() const
717  {  {
718    if (isLazy())    MAKELAZYOP(GEZ)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),GEZ);  
     return Data(c);  
   }  
719    return C_TensorUnaryOperation(*this, bind2nd(greater_equal<double>(),0.0));    return C_TensorUnaryOperation(*this, bind2nd(greater_equal<double>(),0.0));
720  }  }
721    
722  Data  Data
723  Data::whereNonPositive() const  Data::whereNonPositive() const
724  {  {
725    if (isLazy())    MAKELAZYOP(LEZ)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),LEZ);  
     return Data(c);  
   }  
726    return C_TensorUnaryOperation(*this, bind2nd(less_equal<double>(),0.0));    return C_TensorUnaryOperation(*this, bind2nd(less_equal<double>(),0.0));
727  }  }
728    
# Line 739  bool Line 750  bool
750  Data::probeInterpolation(const FunctionSpace& functionspace) const  Data::probeInterpolation(const FunctionSpace& functionspace) const
751  {  {
752    return getFunctionSpace().probeInterpolation(functionspace);    return getFunctionSpace().probeInterpolation(functionspace);
 //   if (getFunctionSpace()==functionspace) {  
 //     return true;  
 //   } else {  
 //     const_Domain_ptr domain=getDomain();  
 //     if  (*domain==*functionspace.getDomain()) {  
 //       return domain->probeInterpolationOnDomain(getFunctionSpace().getTypeCode(),functionspace.getTypeCode());  
 //     } else {  
 //       return domain->probeInterpolationACross(getFunctionSpace().getTypeCode(),*(functionspace.getDomain()),functionspace.getTypeCode());  
 //     }  
 //   }  
753  }  }
754    
755  Data  Data
# Line 883  Data:: getValueOfDataPoint(int dataPoint Line 884  Data:: getValueOfDataPoint(int dataPoint
884    //    //
885    // return the array    // return the array
886    return numArray;    return numArray;
   
887  }  }
888    
889  void  void
# Line 1200  Data::integrateWorker() const Line 1200  Data::integrateWorker() const
1200  Data  Data
1201  Data::sin() const  Data::sin() const
1202  {  {
1203    if (isLazy())    MAKELAZYOP(SIN)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),SIN);  
     return Data(c);  
   }  
1204    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sin);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sin);
1205  }  }
1206    
1207  Data  Data
1208  Data::cos() const  Data::cos() const
1209  {  {
1210    if (isLazy())    MAKELAZYOP(COS)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),COS);  
     return Data(c);  
   }  
1211    return C_TensorUnaryOperation<double (*)(double)>(*this, ::cos);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::cos);
1212  }  }
1213    
1214  Data  Data
1215  Data::tan() const  Data::tan() const
1216  {  {
1217    if (isLazy())    MAKELAZYOP(TAN)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),TAN);  
     return Data(c);  
   }  
1218    return C_TensorUnaryOperation<double (*)(double)>(*this, ::tan);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::tan);
1219  }  }
1220    
1221  Data  Data
1222  Data::asin() const  Data::asin() const
1223  {  {
1224    if (isLazy())    MAKELAZYOP(ASIN)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ASIN);  
     return Data(c);  
   }  
1225    return C_TensorUnaryOperation<double (*)(double)>(*this, ::asin);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::asin);
1226  }  }
1227    
1228  Data  Data
1229  Data::acos() const  Data::acos() const
1230  {  {
1231    if (isLazy())    MAKELAZYOP(ACOS)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ACOS);  
     return Data(c);  
   }  
1232    return C_TensorUnaryOperation<double (*)(double)>(*this, ::acos);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::acos);
1233  }  }
1234    
# Line 1256  Data::acos() const Line 1236  Data::acos() const
1236  Data  Data
1237  Data::atan() const  Data::atan() const
1238  {  {
1239    if (isLazy())    MAKELAZYOP(ATAN)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ATAN);  
     return Data(c);  
   }  
1240    return C_TensorUnaryOperation<double (*)(double)>(*this, ::atan);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::atan);
1241  }  }
1242    
1243  Data  Data
1244  Data::sinh() const  Data::sinh() const
1245  {  {
1246    if (isLazy())    MAKELAZYOP(SINH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),SINH);  
     return Data(c);  
   }  
1247    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sinh);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sinh);
1248  }  }
1249    
1250  Data  Data
1251  Data::cosh() const  Data::cosh() const
1252  {  {
1253    if (isLazy())    MAKELAZYOP(COSH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),COSH);  
     return Data(c);  
   }  
1254    return C_TensorUnaryOperation<double (*)(double)>(*this, ::cosh);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::cosh);
1255  }  }
1256    
1257  Data  Data
1258  Data::tanh() const  Data::tanh() const
1259  {  {
1260    if (isLazy())    MAKELAZYOP(TANH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),TANH);  
     return Data(c);  
   }  
1261    return C_TensorUnaryOperation<double (*)(double)>(*this, ::tanh);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::tanh);
1262  }  }
1263    
# Line 1304  Data::erf() const Line 1268  Data::erf() const
1268  #if defined (_WIN32) && !defined(__INTEL_COMPILER)  #if defined (_WIN32) && !defined(__INTEL_COMPILER)
1269    throw DataException("Error - Data:: erf function is not supported on _WIN32 platforms.");    throw DataException("Error - Data:: erf function is not supported on _WIN32 platforms.");
1270  #else  #else
1271    if (isLazy())    MAKELAZYOP(ERF)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ERF);  
     return Data(c);  
   }  
1272    return C_TensorUnaryOperation(*this, ::erf);    return C_TensorUnaryOperation(*this, ::erf);
1273  #endif  #endif
1274  }  }
# Line 1316  Data::erf() const Line 1276  Data::erf() const
1276  Data  Data
1277  Data::asinh() const  Data::asinh() const
1278  {  {
1279    if (isLazy())    MAKELAZYOP(ASINH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ASINH);  
     return Data(c);  
   }  
1280  #if defined (_WIN32) && !defined(__INTEL_COMPILER)  #if defined (_WIN32) && !defined(__INTEL_COMPILER)
1281    return C_TensorUnaryOperation(*this, escript::asinh_substitute);    return C_TensorUnaryOperation(*this, escript::asinh_substitute);
1282  #else  #else
# Line 1331  Data::asinh() const Line 1287  Data::asinh() const
1287  Data  Data
1288  Data::acosh() const  Data::acosh() const
1289  {  {
1290    if (isLazy())    MAKELAZYOP(ACOSH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ACOSH);  
     return Data(c);  
   }  
1291  #if defined (_WIN32) && !defined(__INTEL_COMPILER)  #if defined (_WIN32) && !defined(__INTEL_COMPILER)
1292    return C_TensorUnaryOperation(*this, escript::acosh_substitute);    return C_TensorUnaryOperation(*this, escript::acosh_substitute);
1293  #else  #else
# Line 1346  Data::acosh() const Line 1298  Data::acosh() const
1298  Data  Data
1299  Data::atanh() const  Data::atanh() const
1300  {  {
1301    if (isLazy())    MAKELAZYOP(ATANH)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ATANH);  
     return Data(c);  
   }  
1302  #if defined (_WIN32) && !defined(__INTEL_COMPILER)  #if defined (_WIN32) && !defined(__INTEL_COMPILER)
1303    return C_TensorUnaryOperation(*this, escript::atanh_substitute);    return C_TensorUnaryOperation(*this, escript::atanh_substitute);
1304  #else  #else
# Line 1360  Data::atanh() const Line 1308  Data::atanh() const
1308    
1309  Data  Data
1310  Data::log10() const  Data::log10() const
1311  {  if (isLazy())  {
1312    {    MAKELAZYOP(LOG10)
     DataLazy* c=new DataLazy(borrowDataPtr(),LOG10);  
     return Data(c);  
   }  
1313    return C_TensorUnaryOperation<double (*)(double)>(*this, ::log10);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::log10);
1314  }  }
1315    
1316  Data  Data
1317  Data::log() const  Data::log() const
1318  {  {
1319    if (isLazy())    MAKELAZYOP(LOG)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),LOG);  
     return Data(c);  
   }  
1320    return C_TensorUnaryOperation<double (*)(double)>(*this, ::log);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::log);
1321  }  }
1322    
1323  Data  Data
1324  Data::sign() const  Data::sign() const
1325  {  {
1326    if (isLazy())    MAKELAZYOP(SIGN)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),SIGN);  
     return Data(c);  
   }  
1327    return C_TensorUnaryOperation(*this, escript::fsign);    return C_TensorUnaryOperation(*this, escript::fsign);
1328  }  }
1329    
1330  Data  Data
1331  Data::abs() const  Data::abs() const
1332  {  {
1333    if (isLazy())    MAKELAZYOP(ABS)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),ABS);  
     return Data(c);  
   }  
1334    return C_TensorUnaryOperation<double (*)(double)>(*this, ::fabs);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::fabs);
1335  }  }
1336    
1337  Data  Data
1338  Data::neg() const  Data::neg() const
1339  {  {
1340    if (isLazy())    MAKELAZYOP(NEG)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),NEG);  
     return Data(c);  
   }  
1341    return C_TensorUnaryOperation(*this, negate<double>());    return C_TensorUnaryOperation(*this, negate<double>());
1342  }  }
1343    
# Line 1425  Data::pos() const Line 1354  Data::pos() const
1354    
1355  Data  Data
1356  Data::exp() const  Data::exp() const
1357  {    {
1358    if (isLazy())    MAKELAZYOP(EXP)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),EXP);  
     return Data(c);  
   }  
1359    return C_TensorUnaryOperation<double (*)(double)>(*this, ::exp);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::exp);
1360  }  }
1361    
1362  Data  Data
1363  Data::sqrt() const  Data::sqrt() const
1364  {  {
1365    if (isLazy())    MAKELAZYOP(SQRT)
   {  
     DataLazy* c=new DataLazy(borrowDataPtr(),SQRT);  
     return Data(c);  
   }  
1366    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sqrt);    return C_TensorUnaryOperation<double (*)(double)>(*this, ::sqrt);
1367  }  }
1368    
# Line 1655  Data::symmetric() const Line 1576  Data::symmetric() const
1576       else {       else {
1577          throw DataException("Error - Data::symmetric can only be calculated for rank 2 or 4 object.");          throw DataException("Error - Data::symmetric can only be calculated for rank 2 or 4 object.");
1578       }       }
1579       if (isLazy())       MAKELAZYOP(SYM)
      {  
     DataLazy* c=new DataLazy(borrowDataPtr(),SYM);  
     return Data(c);  
      }  
1580       Data ev(0.,getDataPointShape(),getFunctionSpace());       Data ev(0.,getDataPointShape(),getFunctionSpace());
1581       ev.typeMatchRight(*this);       ev.typeMatchRight(*this);
1582       m_data->symmetric(ev.m_data.get());       m_data->symmetric(ev.m_data.get());
# Line 1669  Data::symmetric() const Line 1586  Data::symmetric() const
1586  Data  Data
1587  Data::nonsymmetric() const  Data::nonsymmetric() const
1588  {  {
1589       if (isLazy())       MAKELAZYOP(NSYM)
      {  
     DataLazy* c=new DataLazy(borrowDataPtr(),NSYM);  
     return Data(c);  
      }  
1590       // check input       // check input
1591       DataTypes::ShapeType s=getDataPointShape();       DataTypes::ShapeType s=getDataPointShape();
1592       if (getDataPointRank()==2) {       if (getDataPointRank()==2) {
# Line 1708  Data::nonsymmetric() const Line 1621  Data::nonsymmetric() const
1621  Data  Data
1622  Data::trace(int axis_offset) const  Data::trace(int axis_offset) const
1623  {      {    
1624       if (isLazy())       MAKELAZYOPOFF(TRACE,axis_offset)
      {  
     DataLazy* c=new DataLazy(borrowDataPtr(),TRACE,axis_offset);  
     return Data(c);  
      }  
1625       DataTypes::ShapeType s=getDataPointShape();       DataTypes::ShapeType s=getDataPointShape();
1626       if (getDataPointRank()==2) {       if (getDataPointRank()==2) {
1627          DataTypes::ShapeType ev_shape;          DataTypes::ShapeType ev_shape;
# Line 1763  Data::trace(int axis_offset) const Line 1672  Data::trace(int axis_offset) const
1672  Data  Data
1673  Data::transpose(int axis_offset) const  Data::transpose(int axis_offset) const
1674  {      {    
1675       if (isLazy())       MAKELAZYOPOFF(TRANS,axis_offset)
      {  
     DataLazy* c=new DataLazy(borrowDataPtr(),TRANS,axis_offset);  
     return Data(c);  
      }  
1676       DataTypes::ShapeType s=getDataPointShape();       DataTypes::ShapeType s=getDataPointShape();
1677       DataTypes::ShapeType ev_shape;       DataTypes::ShapeType ev_shape;
1678       // Here's the equivalent of python s_out=s[axis_offset:]+s[:axis_offset]       // Here's the equivalent of python s_out=s[axis_offset:]+s[:axis_offset]
# Line 1963  Data::operator+=(const Data& right) Line 1868  Data::operator+=(const Data& right)
1868    if (isProtected()) {    if (isProtected()) {
1869          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1870    }    }
1871    if (isLazy() || right.isLazy())    MAKELAZYBINSELF(right,ADD)    // for lazy + is equivalent to +=
1872    {    binaryOp(right,plus<double>());
1873      DataLazy* c=new DataLazy(m_data,right.borrowDataPtr(),ADD); // for lazy + is equivalent to +=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(right,plus<double>());  
     return (*this);  
   }  
1874  }  }
1875    
1876  Data&  Data&
# Line 1983  Data::operator+=(const boost::python::ob Line 1880  Data::operator+=(const boost::python::ob
1880          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1881    }    }
1882    Data tmp(right,getFunctionSpace(),false);    Data tmp(right,getFunctionSpace(),false);
1883    if (isLazy())    MAKELAZYBINSELF(tmp,ADD)
1884    {    binaryOp(tmp,plus<double>());
1885      DataLazy* c=new DataLazy(m_data,tmp.borrowDataPtr(),ADD);   // for lazy + is equivalent to +=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(tmp,plus<double>());  
     return (*this);  
   }  
1886  }  }
1887    
1888  // Hmmm, operator= makes a deep copy but the copy constructor does not?  // Hmmm, operator= makes a deep copy but the copy constructor does not?
# Line 2010  Data::operator-=(const Data& right) Line 1899  Data::operator-=(const Data& right)
1899    if (isProtected()) {    if (isProtected()) {
1900          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1901    }    }
1902    if (isLazy() || right.isLazy())    MAKELAZYBINSELF(right,SUB)
1903    {    binaryOp(right,minus<double>());
1904      DataLazy* c=new DataLazy(m_data,right.borrowDataPtr(),SUB); // for lazy - is equivalent to -=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(right,minus<double>());  
     return (*this);  
   }  
1905  }  }
1906    
1907  Data&  Data&
# Line 2030  Data::operator-=(const boost::python::ob Line 1911  Data::operator-=(const boost::python::ob
1911          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1912    }    }
1913    Data tmp(right,getFunctionSpace(),false);    Data tmp(right,getFunctionSpace(),false);
1914    if (isLazy())    MAKELAZYBINSELF(tmp,SUB)
1915    {    binaryOp(tmp,minus<double>());
1916      DataLazy* c=new DataLazy(m_data,tmp.borrowDataPtr(),SUB);   // for lazy - is equivalent to -=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(tmp,minus<double>());  
     return (*this);  
   }  
1917  }  }
1918    
1919  Data&  Data&
# Line 2049  Data::operator*=(const Data& right) Line 1922  Data::operator*=(const Data& right)
1922    if (isProtected()) {    if (isProtected()) {
1923          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1924    }    }
1925    if (isLazy() || right.isLazy())    MAKELAZYBINSELF(right,MUL)
1926    {    binaryOp(right,multiplies<double>());
1927      DataLazy* c=new DataLazy(m_data,right.borrowDataPtr(),MUL); // for lazy * is equivalent to *=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(right,multiplies<double>());  
     return (*this);  
   }  
1928  }  }
1929    
1930  Data&  Data&
# Line 2069  Data::operator*=(const boost::python::ob Line 1934  Data::operator*=(const boost::python::ob
1934          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1935    }    }
1936    Data tmp(right,getFunctionSpace(),false);    Data tmp(right,getFunctionSpace(),false);
1937    if (isLazy())    MAKELAZYBINSELF(tmp,MUL)
1938    {    binaryOp(tmp,multiplies<double>());
1939      DataLazy* c=new DataLazy(m_data,tmp.borrowDataPtr(),MUL);   // for lazy * is equivalent to *=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(tmp,multiplies<double>());  
     return (*this);  
   }  
1940  }  }
1941    
1942  Data&  Data&
# Line 2088  Data::operator/=(const Data& right) Line 1945  Data::operator/=(const Data& right)
1945    if (isProtected()) {    if (isProtected()) {
1946          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1947    }    }
1948    if (isLazy() || right.isLazy())    MAKELAZYBINSELF(right,DIV)
1949    {    binaryOp(right,divides<double>());
1950      DataLazy* c=new DataLazy(m_data,right.borrowDataPtr(),DIV); // for lazy / is equivalent to /=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(right,divides<double>());  
     return (*this);  
   }  
1951  }  }
1952    
1953  Data&  Data&
# Line 2108  Data::operator/=(const boost::python::ob Line 1957  Data::operator/=(const boost::python::ob
1957          throw DataException("Error - attempt to update protected Data object.");          throw DataException("Error - attempt to update protected Data object.");
1958    }    }
1959    Data tmp(right,getFunctionSpace(),false);    Data tmp(right,getFunctionSpace(),false);
1960    if (isLazy())    MAKELAZYBINSELF(tmp,DIV)
1961    {    binaryOp(tmp,divides<double>());
1962      DataLazy* c=new DataLazy(m_data,tmp.borrowDataPtr(),DIV);   // for lazy / is equivalent to /=    return (*this);
         m_data=c->getPtr();  
     return (*this);  
   }  
   else  
   {  
     binaryOp(tmp,divides<double>());  
     return (*this);  
   }  
1963  }  }
1964    
1965  Data  Data
# Line 2138  Data::powO(const boost::python::object& Line 1979  Data::powO(const boost::python::object&
1979  Data  Data
1980  Data::powD(const Data& right) const  Data::powD(const Data& right) const
1981  {  {
1982    if (isLazy() || right.isLazy())    MAKELAZYBIN(right,POW)
   {  
     DataLazy* c=new DataLazy(m_data,right.borrowDataPtr(),POW);  
     return Data(c);  
   }  
1983    return C_TensorBinaryOperation<double (*)(double, double)>(*this, right, ::pow);    return C_TensorBinaryOperation<double (*)(double, double)>(*this, right, ::pow);
1984  }  }
1985    
# Line 2151  Data::powD(const Data& right) const Line 1988  Data::powD(const Data& right) const
1988  Data  Data
1989  escript::operator+(const Data& left, const Data& right)  escript::operator+(const Data& left, const Data& right)
1990  {  {
1991    if (left.isLazy() || right.isLazy())    MAKELAZYBIN2(left,right,ADD)
   {  
     DataLazy* c=new DataLazy(left.borrowDataPtr(),right.borrowDataPtr(),ADD);  
     return Data(c);  
   }  
1992    return C_TensorBinaryOperation(left, right, plus<double>());    return C_TensorBinaryOperation(left, right, plus<double>());
1993  }  }
1994    
# Line 2164  escript::operator+(const Data& left, con Line 1997  escript::operator+(const Data& left, con
1997  Data  Data
1998  escript::operator-(const Data& left, const Data& right)  escript::operator-(const Data& left, const Data& right)
1999  {  {
2000    if (left.isLazy() || right.isLazy())    MAKELAZYBIN2(left,right,SUB)
   {  
     DataLazy* c=new DataLazy(left.borrowDataPtr(),right.borrowDataPtr(),SUB);  
     return Data(c);  
   }  
2001    return C_TensorBinaryOperation(left, right, minus<double>());    return C_TensorBinaryOperation(left, right, minus<double>());
2002  }  }
2003    
# Line 2177  escript::operator-(const Data& left, con Line 2006  escript::operator-(const Data& left, con
2006  Data  Data
2007  escript::operator*(const Data& left, const Data& right)  escript::operator*(const Data& left, const Data& right)
2008  {  {
2009    if (left.isLazy() || right.isLazy())    MAKELAZYBIN2(left,right,MUL)
   {  
     DataLazy* c=new DataLazy(left.borrowDataPtr(),right.borrowDataPtr(),MUL);  
     return Data(c);  
   }  
2010    return C_TensorBinaryOperation(left, right, multiplies<double>());    return C_TensorBinaryOperation(left, right, multiplies<double>());
2011  }  }
2012    
# Line 2190  escript::operator*(const Data& left, con Line 2015  escript::operator*(const Data& left, con
2015  Data  Data
2016  escript::operator/(const Data& left, const Data& right)  escript::operator/(const Data& left, const Data& right)
2017  {  {
2018    if (left.isLazy() || right.isLazy())    MAKELAZYBIN2(left,right,DIV)
   {  
     DataLazy* c=new DataLazy(left.borrowDataPtr(),right.borrowDataPtr(),DIV);  
     return Data(c);  
   }  
2019    return C_TensorBinaryOperation(left, right, divides<double>());    return C_TensorBinaryOperation(left, right, divides<double>());
2020  }  }
2021    
# Line 2203  escript::operator/(const Data& left, con Line 2024  escript::operator/(const Data& left, con
2024  Data  Data
2025  escript::operator+(const Data& left, const boost::python::object& right)  escript::operator+(const Data& left, const boost::python::object& right)
2026  {  {
2027    if (left.isLazy())    Data tmp(right,left.getFunctionSpace(),false);
2028    {    MAKELAZYBIN2(left,tmp,ADD)
2029      DataLazy* c=new DataLazy(left.borrowDataPtr(),Data(right,left.getFunctionSpace(),false).borrowDataPtr(),ADD);    return left+tmp;
     return Data(c);  
   }  
   return left+Data(right,left.getFunctionSpace(),false);  
2030  }  }
2031    
2032  //  //
# Line 2216  escript::operator+(const Data& left, con Line 2034  escript::operator+(const Data& left, con
2034  Data  Data
2035  escript::operator-(const Data& left, const boost::python::object& right)  escript::operator-(const Data& left, const boost::python::object& right)
2036  {  {
2037    if (left.isLazy())    Data tmp(right,left.getFunctionSpace(),false);
2038    {    MAKELAZYBIN2(left,tmp,SUB)
2039      DataLazy* c=new DataLazy(left.borrowDataPtr(),Data(right,left.getFunctionSpace(),false).borrowDataPtr(),SUB);    return left-tmp;
     return Data(c);  
   }  
   return left-Data(right,left.getFunctionSpace(),false);  
2040  }  }
2041    
2042  //  //
# Line 2229  escript::operator-(const Data& left, con Line 2044  escript::operator-(const Data& left, con
2044  Data  Data
2045  escript::operator*(const Data& left, const boost::python::object& right)  escript::operator*(const Data& left, const boost::python::object& right)
2046  {  {
2047    if (left.isLazy())    Data tmp(right,left.getFunctionSpace(),false);
2048    {    MAKELAZYBIN2(left,tmp,MUL)
2049      DataLazy* c=new DataLazy(left.borrowDataPtr(),Data(right,left.getFunctionSpace(),false).borrowDataPtr(),MUL);    return left*tmp;
     return Data(c);  
   }  
   return left*Data(right,left.getFunctionSpace(),false);  
2050  }  }
2051    
2052  //  //
# Line 2242  escript::operator*(const Data& left, con Line 2054  escript::operator*(const Data& left, con
2054  Data  Data
2055  escript::operator/(const Data& left, const boost::python::object& right)  escript::operator/(const Data& left, const boost::python::object& right)
2056  {  {
2057    if (left.isLazy())    Data tmp(right,left.getFunctionSpace(),false);
2058    {    MAKELAZYBIN2(left,tmp,DIV)
2059      DataLazy* c=new DataLazy(left.borrowDataPtr(),Data(right,left.getFunctionSpace(),false).borrowDataPtr(),DIV);    return left/tmp;
     return Data(c);  
   }  
   return left/Data(right,left.getFunctionSpace(),false);  
2060  }  }
2061    
2062  //  //
# Line 2255  escript::operator/(const Data& left, con Line 2064  escript::operator/(const Data& left, con
2064  Data  Data
2065  escript::operator+(const boost::python::object& left, const Data& right)  escript::operator+(const boost::python::object& left, const Data& right)
2066  {  {
2067    if (right.isLazy())    Data tmp(left,right.getFunctionSpace(),false);
2068    {    MAKELAZYBIN2(tmp,right,ADD)
2069      DataLazy* c=new DataLazy(Data(left,right.getFunctionSpace(),false).borrowDataPtr(),right.borrowDataPtr(),ADD);    return tmp+right;
     return Data(c);  
   }  
   return Data(left,right.getFunctionSpace(),false)+right;  
2070  }  }
2071    
2072  //  //
# Line 2268  escript::operator+(const boost::python:: Line 2074  escript::operator+(const boost::python::
2074  Data  Data
2075  escript::operator-(const boost::python::object& left, const Data& right)  escript::operator-(const boost::python::object& left, const Data& right)
2076  {  {
2077    if (right.isLazy())    Data tmp(left,right.getFunctionSpace(),false);
2078    {    MAKELAZYBIN2(tmp,right,SUB)
2079      DataLazy* c=new DataLazy(Data(left,right.getFunctionSpace(),false).borrowDataPtr(),right.borrowDataPtr(),SUB);    return tmp-right;
     return Data(c);  
   }  
   return Data(left,right.getFunctionSpace(),false)-right;  
2080  }  }
2081    
2082  //  //
# Line 2281  escript::operator-(const boost::python:: Line 2084  escript::operator-(const boost::python::
2084  Data  Data
2085  escript::operator*(const boost::python::object& left, const Data& right)  escript::operator*(const boost::python::object& left, const Data& right)
2086  {  {
2087    if (right.isLazy())    Data tmp(left,right.getFunctionSpace(),false);
2088    {    MAKELAZYBIN2(tmp,right,MUL)
2089      DataLazy* c=new DataLazy(Data(left,right.getFunctionSpace(),false).borrowDataPtr(),right.borrowDataPtr(),MUL);    return tmp*right;
     return Data(c);  
   }  
   return Data(left,right.getFunctionSpace(),false)*right;  
2090  }  }
2091    
2092  //  //
# Line 2294  escript::operator*(const boost::python:: Line 2094  escript::operator*(const boost::python::
2094  Data  Data
2095  escript::operator/(const boost::python::object& left, const Data& right)  escript::operator/(const boost::python::object& left, const Data& right)
2096  {  {
2097    if (right.isLazy())    Data tmp(left,right.getFunctionSpace(),false);
2098    {    MAKELAZYBIN2(tmp,right,DIV)
2099      DataLazy* c=new DataLazy(Data(left,right.getFunctionSpace(),false).borrowDataPtr(),right.borrowDataPtr(),DIV);    return tmp/right;
     return Data(c);  
   }  
   return Data(left,right.getFunctionSpace(),false)/right;  
2100  }  }
2101    
2102    
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