Method initializeToEmpty

src/basis_factorization/CSRMatrix.cpp:80–106

}

void CSRMatrix::initializeToEmpty( unsigned m, unsigned n )
{
    _m = m;
    _n = n;

    unsigned estimatedNumRowEntries = std::max( 2U, _n / ROW_DENSITY_ESTIMATE );
    _estimatedNnz = estimatedNumRowEntries * _m;

    freeMemoryIfNeeded();

    _A = new double[_estimatedNnz];
    if ( !_A )
        throw BasisFactorizationError( BasisFactorizationError::ALLOCATION_FAILED, "CSRMatrix::A" );

    _IA = new unsigned[_m + 1];
    if ( !_IA )
        throw BasisFactorizationError( BasisFactorizationError::ALLOCATION_FAILED,
                                       "CSRMatrix::IA" );

    _JA = new unsigned[_estimatedNnz];
    if ( !_JA )
        throw BasisFactorizationError( BasisFactorizationError::ALLOCATION_FAILED,
                                       "CSRMatrix::JA" );

    std::fill_n( _IA, _m + 1, 0.0 );
    _nnz = 0;
}

void CSRMatrix::increaseCapacity()
{