error C3861: 'round': identifier not found

 There is no round function in <cmath> for windows. Instead, you have to implement it yourself. This is rather easy, however:

C++ Syntax ( Toggle Plain Text) 


1. inline 
     double round
     ( 
     double d 
     )
2. {
3. return 
     floor
     ( d + 
     0.5 
     );
    
4. }