opencv-cvCeil返回不小于参数的最小整数值

#include<opencv2/opencv.hpp>
#include<iostream>
#include  <vector>


int main(int argc, char** argv) {

    std::cout << "cvCeil(3.7) = " << cvCeil(3.7) << std::endl;
    std::cout << "cvCeil(3.2) = " << cvCeil(3.2) << std::endl;
    std::cout << "cvCeil(-3.7) = " << cvCeil(-3.7) << std::endl;
    std::cout << "cvCeil(-3.2) = " << cvCeil(-3.2) << std::endl;
    //返回不小于参数的最小整数值
    


    cv::waitKey(0);
    return 0;
}