call of overloaded 'round(&float)' is ambiguous

call of overloaded 'round(&float)' is ambiguous

解决：

  

   

    

     

    
    

     

      #include <boost/math/special_functions/round.hpp>
     
    
   

    

     

    
    

     

       
     
    
   

    

     

    
    

     

      double a = boost::math::round(1.5); // Yields 2.0
     
    
   

    

     

    
    

     

      int b = boost::math::iround(1.5); // Yields 2 as an integer
     
    
  
 

For more information, see the Boost documentation.

如果你用的 C++11, 你可以用这些组件：

std::round, std::lround, and std::llround.

参考：http://stackoverflow.com/questions/485525/round-for-float-in-c

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原文链接：blog.csdn.net/jacke121/article/details/54983071