operator< (set) (STL/CLR)

發行項
06/07/2013

清單小於比較。

template<typename Key>
    bool operator<(set<Key>% left,
        set<Key>% right);

參數

left
若要比較的左的容器。
right
若要比較的正確容器。

備註

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].否則，它會傳回left->size() < right->size()您用它來測試是否left排序之前right這兩組時比較的項目由項目點。

範例

// cliext_set_operator_lt.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 contents " a b c" 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
// assign to a new container 
    Myset c2; 
    c2.insert(L'a'); 
    c2.insert(L'b'); 
    c2.insert(L'd'); 
 
// display contents " a b d" 
    for each (wchar_t elem in c2) 
        System::Console::Write(" {0}", elem); 
    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); 
    }