| 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 |  | */ | 
| 55 |  | /** | 
| 56 |  | * @class SimplePreprocessor | 
| 57 |  | * @brief A simple preprocessor. | 
| 58 | < | * @note only supports #include #ifdef, #ifndef, #endif, #define and #undef, c-like multiple line | 
| 58 | > | * @note only supports \#include \#ifdef, \#ifndef, \#endif, \#define and \#undef, c-like multiple line | 
| 59 |  | *  comment is not supported, macro substitute is not supported. | 
| 60 |  | */ | 
| 61 |  | namespace OpenMD { | 
| 95 |  | if (!line.empty() && line[0] == '#') { | 
| 96 |  | StringTokenizer tokenizer(line.substr(1, line.length())); | 
| 97 |  | std::vector<std::string> tokens = tokenizer.getAllTokens(); | 
| 98 | < | if (tokens.size() < 1 ) { | 
| 98 | > | if (tokens.empty()) { | 
| 99 |  | return false; | 
| 100 |  | } | 
| 101 | – | std::string keyword = tokens[0]; | 
| 101 |  | if (tokens[0] == "endif") { | 
| 102 |  | ifStates.pop(); | 
| 103 |  | if (ifStates.empty()) { |