cv::String class usage examples - OpenCV 문자열 클래스 사용 예제

Below code shows how to use cv::String class.

#include <opencv2/opencv.hpp>
 
using namespace std;
using namespace cv;
 
int main(int argc, char** argv)
{
    const char* str = "Open Source Computer Vision";
    String str1("Hello World");
    String str2(str, str+11);
    String str3 = "Software Engineer";
 
    cout << "str1: " << str1 << endl << "str2: " << str2 << endl
        << "str3: " << str3 << endl << endl;
 
    cout << "*str1.begin(): " << *str1.begin() << endl;
    cout << "str1[1]: " << str1[1] << endl;
    cout << "*(str1.end()-1): " << *(str1.end()-1) << endl << endl;
 
    cout << "str2.size(): " << str2.size() << endl;
    cout << "str2.length(): " << str2.length() << endl;
    cout << "str2.empty(): " << str2.empty() << endl;
    cout << "str3.find(\"ng\"): " << str3.find("ng") << endl << endl;
 
    cout << "format(\"%s %d\", str3.c_str(), 100): " << format("%s %d", str3.c_str(), 100) << endl;
    cout << "str3.toLowerCase(): " << str3.toLowerCase() << endl;
    cout << "str3.substr(2, 4): " << str3.substr(2, 4) << endl << endl;
 
    str1.swap(str3);
    cout << "str1.swap(str3)" << endl;
    cout << "- str1: " << str1 << endl << "- str3: " << str3 << endl;
    str1.clear();
    cout << "str1.clear()" << endl;
    cout << "- str1: " << endl;
 
    return 0;
}