priority_queue::difference_type (STL/CLR)

 

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The types of a signed distance between two elements.

Syntax

typedef int difference_type;  

Remarks

The type describes a possibly negative element count.

Example

// cliext_priority_queue_difference_type.cpp   
// compile with: /clr   
#include <cliext/queue>   
  
typedef cliext::priority_queue<wchar_t> Mypriority_queue;   
int main()   
    {   
    Mypriority_queue c1;   
    c1.push(L'a');   
    c1.push(L'b');   
    c1.push(L'c');   
  
// display initial contents " a b c"   
    for each (wchar_t elem in c1.get_container())   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
// compute negative difference   
    Mypriority_queue::difference_type diff = c1.size();   
    c1.push(L'd');   
    c1.push(L'e');   
    diff -= c1.size();   
    System::Console::WriteLine("pushing 2 = {0}", diff);   
  
// compute positive difference   
    diff = c1.size();   
    c1.pop();   
    c1.pop();   
    c1.pop();   
    diff -= c1.size();   
    System::Console::WriteLine("popping 3 = {0}", diff);   
    return (0);   
    }  
  

 c a b  
pushing 2 = -2  
popping 3 = 3  

Requirements

Header: <cliext/queue>

Namespace: cliext

See Also

priority_queue (STL/CLR)
priority_queue::size_type (STL/CLR)