# sc::MOPairIter Class Reference

MOPairIter gives the ordering of orbital pairs. More...

`#include <pairiter.h>`

Inheritance diagram for sc::MOPairIter:

List of all members.

## Public Member Functions
| MOPairIter (const Ref< MOIndexSpace > &space_i, const Ref< MOIndexSpace > &space_j)
| Initialize an iterator for the given MO spaces.
virtual void | start (const int first_ij=0)=0
| Start the iteration.
virtual void | next ()=0
| Move to the next pair.
virtual | operator int () const =0
| Returns nonzero if the iterator currently hold valid data.
int | ni () const
| Returns the number of functions in space i.
int | nj () const
| Returns the number of functions in space j.
int | i () const
| Returns index i.
int | j () const
| Returns index j.
int | nij () const
| Returns the number of pair combinations for this iterator.
int | ij () const
| Returns the current iteration.
## Protected Attributes
bool | i_eq_j_
int | ni_
int | nj_
int | i_
int | j_
int | nij_
int | ij_

## Detailed Description

MOPairIter gives the ordering of orbital pairs.

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

- pairiter.h