Compiling 'round': identifier not found

[kikol]

Hi, does anyone know how to solve this problem when compiling?

error:
1>..\combat.cpp(1220): error C3861: 'round': identifier not found
1>..\combat.cpp(1221): error C3861: 'round': identifier not found

Part of the code affected by the error

//calculate new coordinates using rotation center
                int32_t newX = x - centerX, newY = y - centerY,
                    rotatedX = round(newX * a + newY * b),
                    rotatedY = round(newX * c + newY * d);
                //write in the output matrix using rotated coordinates

 

[Fresh]

The round() function is not part of the C++ standard library.
You can use the std::round() function from the cmath library.