list::merge

将元素从参数列表移除，将它们插入目标列表，将新的组合元素集以升序或其他指定顺序排序。

void merge(    list<Type, Allocator>& _Right ); template<class Traits>    void merge(       list<Type, Allocator>& _Right,        Traits _Comp    );

参数

• _Right
  要与目标列表合并的参数列表。

• _Comp
  用于排列目标列表元素的比较运算符。

备注

参数列表 _Right 与目标列表合并。

参数列表和目标列表必须用相同的比较关系进行排序，生成的序列将以这种关系进行排序。 第一个成员函数的默认排列顺序是升序。 第二个成员函数执行 Traits 类中用户指定的比较运算 _Comp。

示例

// list_merge.cpp
// compile with: /EHsc
#include <list>
#include <iostream>

int main( ) 
{
   using namespace std;
   list <int> c1, c2, c3;
   list <int>::iterator c1_Iter, c2_Iter, c3_Iter;
   
   c1.push_back( 3 );
   c1.push_back( 6 );
   c2.push_back( 2 );
   c2.push_back( 4 );
   c3.push_back( 5 );
   c3.push_back( 1 );

   cout << "c1 =";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   cout << endl;

   cout << "c2 =";
   for ( c2_Iter = c2.begin( ); c2_Iter != c2.end( ); c2_Iter++ )
      cout << " " << *c2_Iter;
   cout << endl;

   c2.merge( c1 );  // Merge c1 into c2 in (default) ascending order
   c2.sort( greater<int>( ) );
   cout << "After merging c1 with c2 and sorting with >: c2 =";
   for ( c2_Iter = c2.begin( ); c2_Iter != c2.end( ); c2_Iter++ )
      cout << " " << *c2_Iter;
   cout << endl;

   cout << "c3 =";
   for ( c3_Iter = c3.begin( ); c3_Iter != c3.end( ); c3_Iter++ )
      cout << " " << *c3_Iter;
   cout << endl;

   c2.merge( c3, greater<int>( ) );
   cout << "After merging c3 with c2 according to the '>' comparison relation: c2 =";
   for ( c2_Iter = c2.begin( ); c2_Iter != c2.end( ); c2_Iter++ )
      cout << " " << *c2_Iter;
   cout << endl;
}

要求

标头：<list>

命名空间: std

请参见

参考

list 类

标准模板库