operator>= (multimap)
測試,如果在運算子左方的多重對應物件大於或等於右邊的多重對應物件。
bool operator>=(
const multimap <Key, Type, Traits, Allocator>& _Left,
const multimap <Key, Type, Traits, Allocator>& _Right
);
參數
_Left
型別 multimap 的物件。_Right
型別 multimap 的物件。
傳回值
true ,如果在運算子左方的多重對應大於或等於多重對應在清單的右邊;否則 false。
圖例
在多重對應物件之間的比較可能會依據其項目比較配對。 大於或等於兩個物件之間的關聯性會根據第一個要比較不相等的項目。
範例
// multimap_op_ge.cpp
// compile with: /EHsc
#include <map>
#include <iostream>
int main( )
{
using namespace std;
multimap < int, int > m1, m2, m3, m4;
int i;
typedef pair < int, int > Int_Pair;
for ( i = 1 ; i < 3 ; i++ )
{
m1.insert ( Int_Pair ( i, i ) );
m2.insert ( Int_Pair ( i, i * i ) );
m3.insert ( Int_Pair ( i, i - 1 ) );
m4.insert ( Int_Pair ( i, i ) );
}
if ( m1 >= m2 )
cout << "The multimap m1 is greater than or equal to the multimap m2." << endl;
else
cout << "The multimap m1 is less than the multimap m2." << endl;
if ( m1 >= m3 )
cout << "The multimap m1 is greater than or equal to the multimap m3." << endl;
else
cout << "The multimap m1 is less than the multimap m3." << endl;
if ( m1 >= m4 )
cout << "The multimap m1 is greater than or equal to the multimap m4." << endl;
else
cout << "The multimap m1 is less than the multimap m4." << endl;
}
需求
標頭:<map>
命名空間: std