operator< (paire) (STL/CLR)

Article
06/10/2015

Pair less than comparison.

template<typename Value1,
    typename Value2>
    bool operator<(pair<Value1, Value2>% left,
        pair<Value1, Value2>% right);

Paramètres

left
Left pair to compare.
right
Right pair to compare.

Notes

The operator function returns left.first < right.first || !(right.first < left.first && left.second < right.second. You use it to test whether left is ordered the before right when the two pairs are compared element by element.

Exemple

// cliext_pair_operator_lt.cpp 
// compile with: /clr 
#include <cliext/utility> 
 
int main() 
    { 
    cliext::pair<wchar_t, int> c1(L'x', 3); 
    System::Console::WriteLine("[{0}, {1}]", c1.first, c1.second); 
    cliext::pair<wchar_t, int> c2(L'x', 4); 
    System::Console::WriteLine("[{0}, {1}]", c2.first, c2.second); 
 
    System::Console::WriteLine("[x 3] < [x 3] is {0}", 
        c1 < c1); 
    System::Console::WriteLine("[x 3] < [x 4] is {0}", 
        c1 < c2); 
    return (0); 
    }