badstringindexing.cpp

来自「Thingking in c++第二版」· C++ 代码 · 共 17 行

//: C01:BadStringIndexing.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
#include <string>
#include <iostream>
using namespace std;

int main(){
  string s("1234");
  // Runtime problem: goes beyond array bounds:
  cout << s[5] << endl;
  // Saves you by throwing an exception:
  cout << s.at(5) << endl;
} ///:~