感悟:与数据库一起飘泊的日子(转)

There is a lot of syntax inconsistencies in C++, which makes C++ harder for

people to understand. For example, = sometimes denotes copy assignment. 

Sometimes it denotes copy construction.

#include <iostream>
using namespace std;

class Thing {
public:
Thing() {
cout << "Thing constructor\n";
}
Thing(const Thing& other) {
cout << "Thing copy constructor\n";
}
Thing& operator = (const Thing& other) {
cout << "Thing copy assignment\n";
}
};

int main(int argc, const char *argv[]) {
Thing t1; // constructor
Thing t2 = t1; // copy constructor (initialization by copy)
Thing t3(t1); // copy constructor
t3 = t1; // copy assignment
return 0;
}