map::key_compare (STL/CLR)

The ordering delegate for two keys.

    Microsoft::VisualC::StlClr::BinaryDelegate<GKey, GKey, bool>
        key_compare;

Remarks

The type is a synonym for the delegate that determines the ordering of its key arguments.

Example

// cliext_map_key_compare.cpp 
// compile with: /clr 
#include <cliext/map> 
 
typedef cliext::map<wchar_t, int> Mymap; 
int main() 
    { 
    Mymap c1; 
    Mymap::key_compare^ kcomp = c1.key_comp(); 
 
    System::Console::WriteLine("compare(L'a', L'a') = {0}", 
        kcomp(L'a', L'a')); 
    System::Console::WriteLine("compare(L'a', L'b') = {0}", 
        kcomp(L'a', L'b')); 
    System::Console::WriteLine("compare(L'b', L'a') = {0}", 
        kcomp(L'b', L'a')); 
    System::Console::WriteLine(); 
 
// test a different ordering rule 
    Mymap c2 = cliext::greater<wchar_t>(); 
    kcomp = c2.key_comp(); 
 
    System::Console::WriteLine("compare(L'a', L'a') = {0}", 
        kcomp(L'a', L'a')); 
    System::Console::WriteLine("compare(L'a', L'b') = {0}", 
        kcomp(L'a', L'b')); 
    System::Console::WriteLine("compare(L'b', L'a') = {0}", 
        kcomp(L'b', L'a')); 
    return (0); 
    } 
 

compare(L'a', L'a') = False compare(L'a', L'b') = True compare(L'b', L'a') = False compare(L'a', L'a') = False compare(L'a', L'b') = False compare(L'b', L'a') = True

Requirements

Header: <cliext/map>

Namespace: cliext

See Also

Reference

map (STL/CLR)

map::key_comp (STL/CLR)

map::key_type (STL/CLR)

map::value_compare (STL/CLR)