operator<= (<stack>)
Tests if the stack object on the left side of the operator is less than or equal to the stack object on the right side.
bool operator<=(
const stack <Type, Container>& _Left,
const stack <Type, Container>& _Right
);
Parameters
_Left
An object of type stack._Right
An object of type stack.
Return Value
true if the stack on the left side of the operator is less than or equal to the stack on the right side of the operator; otherwise false.
Remarks
The comparison between stack objects is based on a pairwise comparison of their elements. The less than or equal to relationship between two stack objects is based on a comparison of the first pair of unequal elements.
Example
// stack_op_le.cpp
// compile with: /EHsc
#include <stack>
#include <iostream>
int main( )
{
using namespace std;
// Declares stacks with default deque base container
stack <int> s1, s2, s3;
s1.push( 5 );
s1.push( 10 );
s2.push( 1 );
s2.push( 2 );
s3.push( 5 );
s3.push( 10 );
if ( s1 <= s2 )
cout << "The stack s1 is less than or equal to "
<< "the stack s2." << endl;
else
cout << "The stack s1 is greater than "
<< "the stack s2." << endl;
if ( s1 <= s3 )
cout << "The stack s1 is less than or equal to "
<< "the stack s3." << endl;
else
cout << "The stack s1 is greater than "
<< "the stack s3." << endl;
}
The stack s1 is greater than the stack s2. The stack s1 is less than or equal to the stack s3.
Requirements
Header: <stack>
Namespace: std