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MPQC
2.3.1
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SpatialMOPairIter gives the ordering of pairs of spatial orbitals. More...
#include <pairiter.h>


Public Member Functions | |
| SpatialMOPairIter (const Ref< MOIndexSpace > &space_i, const Ref< MOIndexSpace > &space_j) | |
| Initialize a spatial pair iterator for the given MO spaces. | |
| virtual int | nij_aa () const =0 |
| Returns the number of functions in alpha-alpha space. | |
| virtual int | nij_ab () const =0 |
| Returns the number of functions in alpha-beta space. | |
| virtual int | ij_aa () const =0 |
| Returns compound index ij for alpha-alpha case. More... | |
| virtual int | ij_ab () const =0 |
| Returns compound index ij for alpha-beta case. | |
| virtual int | ij_ba () const =0 |
| Returns compound index ij for beta-alpha case. | |
Public Member Functions inherited from sc::MOPairIter | |
| 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. | |
Public Member Functions inherited from sc::RefCount | |
| int | lock_ptr () const |
| Lock this object. | |
| int | unlock_ptr () const |
| Unlock this object. | |
| void | use_locks (bool inVal) |
| start and stop using locks on this object | |
| refcount_t | nreference () const |
| Return the reference count. | |
| refcount_t | reference () |
| Increment the reference count and return the new count. | |
| refcount_t | dereference () |
| Decrement the reference count and return the new count. | |
| int | managed () const |
| void | unmanage () |
| Turn off the reference counting mechanism for this object. More... | |
| int | managed () const |
| Return 1 if the object is managed. Otherwise return 0. | |
Public Member Functions inherited from sc::Identity | |
| Identifier | identifier () |
| Return the Identifier for this argument. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from sc::RefCount | |
| RefCount (const RefCount &) | |
| RefCount & | operator= (const RefCount &) |
Protected Attributes inherited from sc::MOPairIter | |
| bool | i_eq_j_ |
| int | ni_ |
| int | nj_ |
| int | i_ |
| int | j_ |
| int | nij_ |
| int | ij_ |
SpatialMOPairIter gives the ordering of pairs of spatial orbitals.
Different spin cases appear.
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pure virtual |
Returns compound index ij for alpha-alpha case.
If the combintaion is not allowed then return -1
Implemented in sc::SpatialMOPairIter_neq, and sc::SpatialMOPairIter_eq.