通过

set::clear (STL/CLR)

  • 项目

移除所有元素。

    void clear();

备注

成员函数有效调用 set::erase (STL/CLR)(set::begin (STL/CLR)(),set::end (STL/CLR)())。 使用该确保控件序列为空。

示例

// cliext_set_clear.cpp 
// compile with: /clr 
#include <cliext/set> 
 
typedef cliext::set<wchar_t> Myset; 
int main() 
    { 
    Myset 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(); 
 
// clear the container and reinspect 
    c1.clear(); 
    System::Console::WriteLine("size() = {0}", c1.size()); 
 
// add elements and clear again 
    c1.insert(L'a'); 
    c1.insert(L'b'); 
 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
    c1.clear(); 
    System::Console::WriteLine("size() = {0}", c1.size()); 
    return (0); 
    }

要求

标题: <cliext/设置>

命名空间: cliext

请参见

参考

set (STL/CLR)

set::erase (STL/CLR)