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operator<= (<queue>)

Tests if the queue object on the left side of the operator is less than or equal to the queue object on the right side.

bool operator<=( 
   const queue <Type, Container>& _Left, 
   const queue <Type, Container>& _Right, 
);

Parameters

  • _Left
    An object of type queue.

  • _Right
    An object of type queue.

Return Value

true if the queue on the left side of the operator is strictly less than the queue on the right side of the operator; otherwise false.

Remarks

The comparison between queue objects is based on a pairwise comparison of their elements. The less than or equal to relationship between two queue objects is based on a comparison of the first pair of unequal elements.

Example

// queue_op_le.cpp
// compile with: /EHsc
#include <queue>
#include <iostream>

int main( )
{
   using namespace std;
   queue <int> q1, q2, q3;

   q1.push( 5 );
   q1.push( 10 );
   q2.push( 1 );
   q2.push( 2 );
   q3.push( 5 );
   q3.push( 10 );

   if ( q1 <= q2 )
      cout << "The queue q1 is less than or equal to "
           << "the queue q2." << endl;
   else
      cout << "The queue q1 is greater than "
           << "the queue q2." << endl;

   if ( q1 <= q3 )
      cout << "The queue q1 is less than or equal to "
           << "the queue q3." << endl;
   else
      cout << "The queue q1 is greater than "
           << "the queue q3." << endl;
}
The queue q1 is greater than the queue q2.
The queue q1 is less than or equal to the queue q3.

Requirements

Header: <queue>

Namespace: std

See Also

Reference

Standard Template Library