stack::empty (STL/CLR)

测试元素是否存在。

    bool empty();

备注

成员函数返回 true 一个空序列控制。 它等效于stack::size (STL/CLR)() == 0。 您可用它测试栈是否为空。

示例

// cliext_stack_empty.cpp 
// compile with: /clr 
#include <cliext/stack> 
 
typedef cliext::stack<wchar_t> Mystack; 
int main() 
    { 
    Mystack 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}", c1.size()); 
    System::Console::WriteLine("empty() = {0}", c1.empty()); 
 
// clear the container and reinspect 
    c1.pop(); 
    c1.pop(); 
    c1.pop(); 
    System::Console::WriteLine("size() = {0}", c1.size()); 
    System::Console::WriteLine("empty() = {0}", c1.empty()); 
    return (0); 
    } 
 

要求

标头: <cliext/stack>

命名空间: cliext

请参见

参考

stack (STL/CLR)

stack::size (STL/CLR)