ConstraintMatrix::ConstraintLine Struct Reference

List of all members.

Public Member Functions

bool operator< (const ConstraintLine &) const
bool operator== (const ConstraintLine &) const
unsigned int memory_consumption () const

Public Attributes

unsigned int line
std::vector< std::pair
< unsigned int, double > > 
entries
double inhomogeneity

Detailed Description

This class represents one line of a constraint matrix.


Member Function Documentation

bool ConstraintMatrix::ConstraintLine::operator< ( const ConstraintLine  )  const

This operator is a bit weird and unintuitive: it compares the line numbers of two lines. We need this to sort the lines; in fact we could do this using a comparison predicate. However, this way, it is easier, albeit unintuitive since two lines really have no god-given order relation.

bool ConstraintMatrix::ConstraintLine::operator== ( const ConstraintLine  )  const

This operator is likewise weird: it checks whether the line indices of the two operands are equal, irrespective of the fact that the contents of the line may be different.

unsigned int ConstraintMatrix::ConstraintLine::memory_consumption (  )  const

Determine an estimate for the memory consumption (in bytes) of this object.


Member Data Documentation

Number of this line. Since only very few lines are stored, we can not assume a specific order and have to store the line number explicitly.

Row numbers and values of the entries in this line.

For the reason why we use a vector instead of a map and the consequences thereof, the same applies as what is said for ConstraintMatrixlines.

Value of the inhomogeneity.


The documentation for this struct was generated from the following file:

deal.II documentation generated on Mon Nov 23 22:57:33 2009 by doxygen 1.6.1