stringstorage.cpp

来自「C语言数值算法程序大全（第二版）,课本文件」· C++ 代码 · 共 32 行

//: C03:StringStorage.cpp
// From "Thinking in C++, 2nd Edition, Volume 2"
// by Bruce Eckel & Chuck Allison, (c) 2003 MindView, Inc.
// Available at www.BruceEckel.com.
//{L} ../TestSuite/Test
#include <string>
#include <iostream>
#include "../TestSuite/Test.h"
using namespace std;

class StringStorageTest : public TestSuite::Test {
public:
  void run() {
    string s1("12345");
    // This may copy the first to the second or 
    // use reference counting to simulate a copy 
    string s2 = s1;
    test_(s1 == s2);
    // Either way, this statement must ONLY modify s1
    s1[0] = '6';
    cout << "s1 = " << s1 << endl;
    cout << "s2 = " << s2 << endl;
    test_(s1 != s2);
  }
};

int main() {
  StringStorageTest t;
  t.run();
  return t.report();
} ///:~