set::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_set_difference_type.cpp   
// compile with: /clr   
#include <cliext/set>   
  
typedef cliext::set<wchar_t> Myset;   
int main()   
    {   
    Myset c1;   
    c1.insert(L'a');   
    c1.insert(L'b');   
    c1.insert(L'c');   
  
// display initial contents " a b c"   
    for each (wchar_t elem in c1)   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
  
// compute positive difference   
    Myset::difference_type diff = 0;   
    for (Myset::iterator it = c1.begin(); it != c1.end(); ++it)   
        ++diff;   
    System::Console::WriteLine("end()-begin() = {0}", diff);   
  
// compute negative difference   
    diff = 0;   
    for (Myset::iterator it = c1.end(); it != c1.begin(); --it)   
        --diff;   
    System::Console::WriteLine("begin()-end() = {0}", diff);   
    return (0);   
    }  
  

 a b c  
end
()-begin
() = 3  
begin
()-end
() = -3  

Requirements

Header: <cliext/set>

Namespace: cliext

See Also

set (STL/CLR)
set::size_type (STL/CLR)