CPPLapack Code

//=============================================================================
/*! dgematrix+=dsymatrix operator */
inline dgematrix& dgematrix::operator+=(const dsymatrix& mat)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(n!=mat.n || m!=mat.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a summation." << std::endl
              << "Your input was (" << m << "x" << n << ") += (" << mat.n << "x" << mat.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  for(long i=0; i<m; i++){
    for( long j=0; j<n; j++){
      operator() (i,j) += mat(i,j);
    }
  }
  
  return *this;
}

//=============================================================================
/*! dgematrix-=dsymatrix operator */
inline dgematrix& dgematrix::operator-=(const dsymatrix& mat)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(n!=mat.n || m!=mat.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a sutraction." << std::endl
              << "Your input was (" << m << "x" << n << ") -= (" << mat.n << "x" << mat.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  for(long i=0; i<m; i++){
    for(long j=0; j<n; j++){
      operator() (i,j) -= mat(i,j);
    }
  }
  
  return *this;
}

//=============================================================================
/*! dgematrix*=dsymatrix operator */
inline dgematrix& dgematrix::operator*=(const dsymatrix& mat)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(n!=mat.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a product." << std::endl
              << "Your input was (" << m << "x" << n << ") *= (" << mat.n << "x" << mat.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat( m, mat.n );
  dsymm_( 'R', 'l', mat.n, n, 1.0, mat.array, mat.n, 
          array, m, 0.0, newmat.array, newmat.m );
  
  swap(*this,newmat);
  return *this;
}

///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

//=============================================================================
/*! dgematrix+dsymatrix operator */
inline _dgematrix operator+(const dgematrix& matA, const dsymatrix& matB)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a summation." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.n << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG

  dgematrix newmat(matA);
  for(long i=0; i<matA.m; i++){
    for(long j=0; j<matA.n; j++){
      newmat(i,j) += matB(i,j);
    }
  }
  
  return _(newmat);
}

//=============================================================================
/*! dgematrix-dsymatrix operator */
inline _dgematrix operator-(const dgematrix& matA, const dsymatrix& matB)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a subtraction." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") - (" << matB.n << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG

  dgematrix newmat(matA);
  for(long i=0; i<matA.m; i++){
    for(long j=0; j<matA.n; j++){
      newmat(i,j) -= matB(i,j);
    }
  }
  
  return _(newmat);
}

//=============================================================================
/*! dgematrix*dsymatrix operator */
inline _dgematrix operator*(const dgematrix& matA, const dsymatrix& matB)
{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a product." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.n << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat( matA.m, matB.n );
  dsymm_( 'R', 'l', newmat.m, newmat.n, 1.0, matB.array, matB.n, 
          matA.array, matA.m, 0.0, newmat.array, newmat.m );
  
  return _(newmat);
}