set.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 42 行

// set.cpp
// set stores string objects
#pragma warning (disable:4786)  //for set (Microsoft compilers only)
#include <iostream>
#include <set>
#include <string>
using namespace std;

int main()
   {                          // array of string objects
   string names[] = {"Juanita", "Robert",
                     "Mary", "Amanda", "Marie"};
                              // initialize set to array
   set<string, less<string> > nameSet(names, names+5);
                              // iterator to set
   set<string, less<string> >::iterator iter;

   nameSet.insert("Yvette");  // insert more names
   nameSet.insert("Larry");
   nameSet.insert("Robert");  // no effect; already in set
   nameSet.insert("Barry");
   nameSet.erase("Mary");     // erase a name
                              // display size of set
   cout << "\nSize=" << nameSet.size() << endl;
   iter = nameSet.begin();    // display members of set
   while( iter != nameSet.end() )
      cout << *iter++ << '\n';

   string searchName;         // get name from user
   cout << "\nEnter name to search for: ";
   cin >> searchName;
                              // find matching name in set
   iter = nameSet.find(searchName);
   if( iter == nameSet.end() )
      cout << "The name " << searchName << " is NOT in the set.";
   else
      cout << "The name " << *iter << " IS in the set.";
   cout << endl;
   return 0;
   }