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chemistry
cca
ccaiter.h
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#ifdef __GNUG__
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#pragma interface
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#endif
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#ifndef _ccaiter_h
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#define _ccaiter_h
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#include <chemistry/qc/basis/cartiter.h>
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namespace
MPQC {
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class
CartesianIterCCA
:
public
sc::CartesianIter
{
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int
*avec, *bvec, *cvec;
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public
:
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CartesianIterCCA
(
int
l
) :
CartesianIter
(l) {}
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void
start
() {
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bfn_=b_=c_=0;
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a_=l_;
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}
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void
next
() {
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if
(c_ < l_ - a_) {
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b_--;
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c_++;
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}
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else
{
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a_--;
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c_ = 0;
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b_ = l_ - a_;
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}
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bfn_++;
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}
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operator
int() {
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return
(a_ >= 0);
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}
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};
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}
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#endif
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MPQC
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