badstringindexing.cpp

C语言数值算法程序大全（第二版）,课本文件

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

int main(){
  string s("1234");
  // at() saves you by throwing an exception:
  try {
    s.at(5);
  } catch(exception& e) {
    cerr << e.what() << endl;
  }
} ///:~