operator< (queue) (STL/CLR)

Article
12/18/2017

The latest version of this topic can be found at operator< (queue) (STL/CLR).

Queue less than comparison.

Syntax

template<typename Value,  
    typename Container>  
    bool operator<(queue<Value, Container>% left,  
        queue<Value, Container>% right);

Parameters

left
Left container to compare.

right
Right container to compare.

Remarks

The operator function returns true if, for the lowest position i for which !(``right``[i] < left``[i]) it is also true that left``[i] < right``[i]. Otherwise, it returns left``->queue::size (STL/CLR)() < right``->size() You use it to test whether left is ordered before right when the two queues are compared element by element.

Example

// cliext_queue_operator_lt.cpp   
// compile with: /clr   
#include <cliext/queue>   
  
typedef cliext::queue<wchar_t> Myqueue;   
int main()   
    {   
    Myqueue c1;   
    c1.push(L'a');   
    c1.push(L'b');   
    c1.push(L'c');   
  
// display contents " a b c"   
    for each (wchar_t elem in c1.get_container())   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
// assign to a new container   
    Myqueue c2;   
    c2.push(L'a');   
    c2.push(L'b');   
    c2.push(L'd');   
  
// display contents " a b d"   
    for each (wchar_t elem in c2.get_container())   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
    System::Console::WriteLine("[a b c] < [a b c] is {0}",   
        c1 < c1);   
    System::Console::WriteLine("[a b c] < [a b d] is {0}",   
        c1 < c2);   
    return (0);   
    }

 a b c  
 a b d  
[a b c] < [a b c] is False  
[a b c] < [a b d] is True

Requirements

Header: <cliext/queue>

Namespace: cliext

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