reverse (STL Samples)

在 Visual C++ 演示如何使用 反转 标准 (STL)模板库函数。

template<class BidirectionalIterator> inline
   void reverse(
      BidirectionalIterator First,
      BidirectionalIterator Last
   )

备注

备注

类/参数名在原型不匹配版本在头文件。修改某些提高可读性。

反转 算法反转元素的顺序在范围 [First， Last)。

示例

// reverse.cpp
// compile with: /EHsc
// Illustrates how to use the reverse function.
//
// Functions:
//    reverse - Reverse the items in a sequence.

// disable warning C4786: symbol greater than 255 character,
// okay to ignore
#pragma warning(disable: 4786)

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <functional>

using namespace std;


int main()
{
   const int VECTOR_SIZE = 8;

   // Define a template class vector of strings
   typedef vector<string > StrVector;

   //Define an iterator for template class vector of strings
   typedef StrVector::iterator StrVectorIt;

   StrVector Tongue_Twister(VECTOR_SIZE);
   StrVectorIt start, end, it;

   // location of first element of Tongue_Twister
   start = Tongue_Twister.begin();

   // one past the location last element of Tongue_Twister
   end = Tongue_Twister.end();

   //Initialize vector Tongue_Twister
   Tongue_Twister[0] = "she";
   Tongue_Twister[1] = "sells";
   Tongue_Twister[2] = "sea";
   Tongue_Twister[3] = "shells";
   Tongue_Twister[4] = "by";
   Tongue_Twister[5] = "the";
   Tongue_Twister[6] = "sea";
   Tongue_Twister[7] = "shore";

   cout << "Before calling reverse" << endl;

   // print content of Tongue_Twister
   cout << "Try this Tongue Twister:";
   for (it = start; it != end; it++)
      cout << " " << *it;
   cout << endl;

   // reverse the items in the vector Tongue_Twister
   reverse(start, end);

   cout << "After calling reverse" << endl;

   // print content of Tongue_Twister
   cout << "Now try the reversed Tongue Twister:";
   for (it = start; it != end; it++)
      cout << " " << *it;
}

Output

Before calling reverse
Try this Tongue Twister: she sells sea shells by the sea shore
After calling reverse
Now try the reversed Tongue Twister: shore sea the by shells sea sells she

要求

**标题:**algorithm

请参见

概念

标准模板库示例