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queue::difference_type (STL/CLR)

 

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

The types of a signed distance between two elements.

typedef int difference_type;  

The type describes a possibly negative element count.

// cliext_queue_difference_type.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 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   
    Myqueue::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);   
    }  
  

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

Header: <cliext/queue>

Namespace: cliext

queue (STL/CLR)
queue::size_type (STL/CLR)

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