set::clear (STL/CLR)

移除所有項目。

    void clear();

備註

The member function effectively calls set::erase (STL/CLR)( set::begin (STL/CLR)(), set::end (STL/CLR)()). 您可以用它來確定受控制的序列是空白。

範例

// 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); 
    } 
 

需求

標頭: < cliext/設定 >

Namespace: cliext

請參閱

參考

set (STL/CLR)

set::erase (STL/CLR)