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Table 15. Testing leftmost-longest searches (platform = linux, compiler = GNU C++ version 6.3.0)
| 
                   
                    Expression  | 
                   boost 1.65  | 
                   std::regex  | 
                   POSIX  | 
|---|---|---|---|
| 
                   
                      | 
                   
                    1.00  | 
                   
                    1.44  | 
                   
                    1.64  | 
| 
                   
                      | 
                   
                    1.00  | 
                   
                    6.89  | 
                   
                    1.59  | 
| 
                   
                      | 
                   
                    1.03  | 
                   
                    36.27  | 
                   
                    1.00  |