chapter2-21.cpp

STL程序员开发指南源码

//文件名：CHAPTER2-21.cpp
#pragma warning(disable:4786)
#include <string>
#include <iostream>
using namespace std ;
void trueFalse(int x)
{
  cout << (x? "True": "False") << endl;
}
void main()
{
   string S1="DEF";
   char CP1[]="ABC";
   char CP2[]="DEF";
   char CP3[]="DEFG";
   char CP4[]="def";
   cout << "S1 is " << S1 << endl;
   cout << "CP1 is " << CP1 << endl;
   cout << "CP2 is " << CP2 << endl;
   cout << "CP3 is " << CP3 << endl;
   cout << "CP4 is " << CP4 << endl;
   cout << "S1<=CP1 returned ";
   trueFalse(S1<=CP1);  // False  (调用语法1)
   cout << "S1<=CP2 returned ";
   trueFalse(S1<=CP2);  // True   (调用语法1)
   cout << "S1<=CP3 returned ";
   trueFalse(S1<=CP3);  // True   (调用语法1)
   cout << "CP1<=S1 returned ";
   trueFalse(CP1<=S1);  // True   (调用语法2)
   cout << "CP2<=S1 returned ";
   trueFalse(CP2<=S1);  // True   (调用语法2)
   cout << "CP4<=S1 returned ";
   trueFalse(CP4<=S1);  // False   (调用语法2)
}