| 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 |  | */ | 
| 99 |  | private: | 
| 100 |  |  | 
| 101 |  | int isValidGrid(unsigned int i, unsigned int j, unsigned int k) const { | 
| 102 | < | int index = i * dim2_*dim3_ + j * dim3_ + k; | 
| 103 | < | return index < data_.size() ? index : -1; | 
| 102 | > | unsigned int index = i * dim2_*dim3_ + j * dim3_ + k; | 
| 103 | > | return index < data_.size() ? int(index) : -1; | 
| 104 |  | }; | 
| 105 |  |  | 
| 106 |  | unsigned int dim1_; |