operator<= (pair) (STL/CLR)

2015-06-09

组小于或等于比较

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

参数

left
左对比较。
right
右对比较。

备注

运算符函数返回 !(right < left)。当一个个元素地比较两种多集时，您可以用它测试 left 是否在 right 之后排序。

示例

// cliext_pair_operator_le.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 4] <= [x 3] is {0}", 
        c2 <= c1); 
    return (0); 
    }