hash_multiset::size (STL/CLR)

计算元素的数量。

    size_type size();

备注

成员函数返回控制序列的长度。 使用其当前确定元素的数目。控制序列。 如果您关注的是序列是否具有非零大小，请参见 hash_multiset::empty (STL/CLR)()。

示例

// cliext_hash_multiset_size.cpp 
// compile with: /clr 
#include <cliext/hash_set> 
 
typedef cliext::hash_multiset<wchar_t> Myhash_multiset; 
int main() 
    { 
    Myhash_multiset c1; 
    c1.insert(L'a'); 
    c1.insert(L'b'); 
    c1.insert(L'c'); 
 
// display initial contents " a b c" 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
    System::Console::WriteLine("size() = {0} starting with 3", c1.size()); 
 
// clear the container and reinspect 
    c1.clear(); 
    System::Console::WriteLine("size() = {0} after clearing", c1.size()); 
 
// add elements and clear again 
    c1.insert(L'a'); 
    c1.insert(L'b'); 
    System::Console::WriteLine("size() = {0} after adding 2", c1.size()); 
    return (0); 
    } 
 

要求

标头: <cliext/hash_set>

命名空间: cliext

请参见

参考

hash_multiset (STL/CLR)

hash_multiset::empty (STL/CLR)