deque::emplace

Inserts an element constructed in place into the deque at a specified position.

iterator emplace(
   const_iterator _Where,
   Type&& _Val
);

매개 변수

Parameter	설명
_Where	The position in the deque 클래스 where the first element is inserted.
_Val	The value of the element being inserted into the deque.

반환 값

The function returns an iterator that points to the position where the new element was inserted into the deque.

설명

Any insertion operation can be expensive, see deque for a discussion of deque performance.

예제

// deque_emplace.cpp
// compile with: /EHsc
#include <deque>
#include <iostream>

int main( )
{
   using namespace std;   
   deque <int> v1;
   deque <int>::iterator Iter;
   
   v1.push_back( 10 );
   v1.push_back( 20 );
   v1.push_back( 30 );

   cout << "v1 =" ;
   for ( Iter = v1.begin( ) ; Iter != v1.end( ) ; Iter++ )
      cout << " " << *Iter;
   cout << endl;

// initialize a deque of deques by moving v1
   deque < deque <int> > vv1;

   vv1.emplace( vv1.begin(), move( v1 ) );
   if ( vv1.size( ) != 0 && vv1[0].size( ) != 0 )
      {
      cout << "vv1[0] =";
      for (Iter = vv1[0].begin( ); Iter != vv1[0].end( ); Iter++ )
         cout << " " << *Iter;
      cout << endl;
      }
}

요구 사항

헤더: <deque>

네임스페이스: std

참고 항목

참조

deque 클래스

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