operator== (set)

Tests if the set object on the left side of the operator is equal to the set object on the right side.

bool operator!==( 
   const set <Key, Traits, Allocator>& _Left, 
   const set <Key, Traits, Allocator>& _Right 
);

매개 변수

• _Left
  An object of type set.

• _Right
  An object of type set.

반환 값

true if the set on the left side of the operator is equal to the set on the right side of the operator; otherwise false.

설명

The comparison between set objects is based on a pairwise comparison of their elements. Two sets are equal if they have the same number of elements and their respective elements have the same values. 그렇지 않으면 두 개체는 서로 다른 개체입니다.

예제

// set_op_eq.cpp
// compile with: /EHsc
#include <set>
#include <iostream>

int main( )
{
   using namespace std;
   set <int> s1, s2, s3;
   int i;

   for ( i = 0 ; i < 3 ; i++ )
   {
      s1.insert ( i );
      s2.insert ( i * i );
      s3.insert ( i );
   }

   if ( s1 == s2 )
      cout << "The sets s1 and s2 are equal." << endl;
   else
      cout << "The sets s1 and s2 are not equal." << endl;

   if ( s1 == s3 )
      cout << "The sets s1 and s3 are equal." << endl;
   else
      cout << "The sets s1 and s3 are not equal." << endl;
}

요구 사항

헤더: <설정>

네임스페이스: std

참고 항목

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