operator< (multimap) (STL/CLR)

List less than comparison.

template<typename Key,
    typename Mapped>
    bool operator<(multimap<Key, Mapped>% left,
        multimap<Key, Mapped>% 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->size() < right->size() You use it to test whether left is ordered before right when the two multimaps are compared element by element.

Example

// cliext_multimap_operator_lt.cpp 
// compile with: /clr 
#include <cliext/map> 
 
typedef cliext::multimap<wchar_t, int> Mymultimap; 
int main() 
    { 
    Mymultimap c1; 
    c1.insert(Mymultimap::make_value(L'a', 1)); 
    c1.insert(Mymultimap::make_value(L'b', 2)); 
    c1.insert(Mymultimap::make_value(L'c', 3)); 
 
// display contents " [a 1] [b 2] [c 3]" 
    for each (Mymultimap::value_type elem in c1) 
        System::Console::Write(" [{0} {1}]", elem->first, elem->second); 
    System::Console::WriteLine(); 
 
// assign to a new container 
    Mymultimap c2; 
    c2.insert(Mymultimap::make_value(L'a', 1)); 
    c2.insert(Mymultimap::make_value(L'b', 2)); 
    c2.insert(Mymultimap::make_value(L'd', 4)); 
 
// display contents " [a 1] [b 2] [d 4]" 
    for each (Mymultimap::value_type elem in c2) 
        System::Console::Write(" [{0} {1}]", elem->first, elem->second); 
    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 1] [b 2] [c 3]
 [a 1] [b 2] [d 4]
[a b c] < [a b c] is False
[a b c] < [a b d] is True

Requirements

Header: <cliext/map>

Namespace: cliext

See Also

Concepts

multimap (STL/CLR)

operator== (multimap) (STL/CLR)

operator!= (multimap) (STL/CLR)

operator>= (multimap) (STL/CLR)

operator> (multimap) (STL/CLR)

operator<= (multimap) (STL/CLR)