priority_queue::size (STL/CLR)

计算元素的数量。

    size_type size();

备注

成员函数返回控件序列的长度。 使用该当前定位元素数在控件序列。 如果您关注的所有为序列是否具有非零大小，请参见 priority_queue::empty (STL/CLR)()。

示例

// cliext_priority_queue_size.cpp 
// compile with: /clr 
#include <cliext/queue> 
 
typedef cliext::priority_queue<wchar_t> Mypriority_queue; 
int main() 
    { 
    Mypriority_queue c1; 
    c1.push(L'a'); 
    c1.push(L'b'); 
    c1.push(L'c'); 
 
// display initial contents " a b c" 
    for each (wchar_t elem in c1.get_container()) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
    System::Console::WriteLine("size() = {0} starting with 3", c1.size()); 
 
// pop an item and reinspect 
    c1.pop(); 
    System::Console::WriteLine("size() = {0} after popping", c1.size()); 
 
// add two elements and reinspect 
    c1.push(L'a'); 
    c1.push(L'b'); 
    System::Console::WriteLine("size() = {0} after adding 2", c1.size()); 
    return (0); 
    } 
 

要求

标题: <cliext/队列>

命名空间: cliext

请参见

参考

priority_queue (STL/CLR)

priority_queue::empty (STL/CLR)