fig20_34.cpp

来自「这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to pr」· C++ 代码 · 共 58 行

// Fig. 20.34: fig20_34.cpp
// Demonstrates miscellaneous functions: inplace_merge,
// reverse_copy, and unique_copy.
#include <iostream>

using std::cout;
using std::endl;

#include <algorithm>
#include <vector>
#include <iterator>

int main()
{
   const int SIZE = 10;
   int a1[ SIZE ] = { 1, 3, 5, 7, 9, 1, 3, 5, 7, 9 };
   std::vector< int > v1( a1, a1 + SIZE );

   std::ostream_iterator< int > output( cout, " " );

   cout << "Vector v1 contains: ";
   std::copy( v1.begin(), v1.end(), output );

   std::inplace_merge( v1.begin(), v1.begin() + 5, v1.end() );
   cout << "\nAfter inplace_merge, v1 contains: ";
   std::copy( v1.begin(), v1.end(), output );
   
   std::vector< int > results1;
   std::unique_copy( v1.begin(), v1.end(), 
                     std::back_inserter( results1 ) );
   cout << "\nAfter unique_copy results1 contains: ";
   std::copy( results1.begin(), results1.end(), output );
   
   std::vector< int > results2;
   cout << "\nAfter reverse_copy, results2 contains: ";
   std::reverse_copy( v1.begin(), v1.end(), 
                      std::back_inserter( results2 ) );
   std::copy( results2.begin(), results2.end(), output );

   cout << endl;
   return 0;
}

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