小编s12*_*123的帖子

我正在尝试制作一系列不同的对象.但是,我注意到每当我从数组中更改一个对象时,所有元素都会收到该更改.显然,我只希望该索引处的对象接收更改.这是我的代码:

//Creates the array pointer
cacheStats **directMappedTable1024Bytes = new cacheStats *[31];
//Initializes the array with cacheStats objects
    for (int i=0; i<31; i++)
{
    table[i] = new cacheStats();
}

//Test: Changing element of one object in the array
directMappedTable1024Bytes[5]->setTag(55);
cout << directMappedTable1024Bytes[22]->checkTag(); //should output 0

cacheStats代码:

#include "cacheStats.h"
int tag;
int valid;
using namespace std;
cacheStats :: cacheStats (int t, int v)
{
tag = t;
valid = v;
}
cacheStats :: ~cacheStats()
{
}
void cacheStats :: setTag …

我需要在GPU上进行图像处理以满足类要求.这个OpenCV代码是在GPU还是CPU上运行？

码

// The "Square Detector" program.
// It loads several images sequentially and tries to find squares in
// each image
    #include "opencv2/core/core.hpp"
    #include "opencv2/imgproc/imgproc.hpp"
    #include "opencv2/highgui/highgui.hpp"

    #include <iostream>
    #include <math.h>
    #include <string.h>

    using namespace cv;
    using namespace std;
    int thresh = 50, N = 11;
    const char* wndname = "Square Detection Demo";
    static void findSquares( const Mat& image, vector<vector<Point> >& squares )
    {
        squares.clear();

        Mat pyr, timg, gray0(image.size(), CV_8U), gray;
        pyrDown(image, pyr, Size(image.cols/2, image.rows/2));
        pyrUp(pyr, timg, image.size());
        vector<vector<Point> …