| 35 | 
  | 
 *                                                                       | 
| 36 | 
  | 
 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).              | 
| 37 | 
  | 
 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).           | 
| 38 | 
< | 
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).           | 
| 38 | 
> | 
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).           | 
| 39 | 
  | 
 * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010). | 
| 40 | 
  | 
 * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). | 
| 41 | 
  | 
 */ | 
| 108 | 
  | 
    RealType distance = sqrt(r12.x()*r12.x() + r12.y()*r12.y()); | 
| 109 | 
  | 
 | 
| 110 | 
  | 
    if (distance < len_) { | 
| 111 | 
< | 
      int whichBin = distance / deltaR_; | 
| 111 | 
> | 
      int whichBin = int(distance / deltaR_); | 
| 112 | 
  | 
      histogram_[whichBin] += 2; | 
| 113 | 
  | 
    } | 
| 114 | 
  | 
  } |