source: ThirdParty/mpqc_open/src/lib/chemistry/cca/ccaiter.h@ 482400e

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Last change on this file since 482400e was 860145, checked in by Frederik Heber <heber@…>, 8 years ago

Merge commit '0b990dfaa8c6007a996d030163a25f7f5fc8a7e7' as 'ThirdParty/mpqc_open'
  • Property mode set to 100644
File size: 576 bytes
Line 
1#ifdef __GNUG__
2#pragma interface
3#endif
4
5#ifndef _ccaiter_h
6#define _ccaiter_h
7
8#include <chemistry/qc/basis/cartiter.h>
9
10namespace MPQC {
11
12class CartesianIterCCA : public sc::CartesianIter {
13 int *avec, *bvec, *cvec;
14 public:
15 CartesianIterCCA(int l) : CartesianIter(l) {}
16 void start() {
17 bfn_=b_=c_=0;
18 a_=l_;
19 }
20 void next() {
21 if (c_ < l_ - a_) {
22 b_--;
23 c_++;
24 }
25 else {
26 a_--;
27 c_ = 0;
28 b_ = l_ - a_;
29 }
30 bfn_++;
31 }
32 operator int() {
33 return (a_ >= 0);
34 }
35};
36
37}
38
39#endif
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