set::clear (STL/CLR)

Removes all elements.

    void clear();

Remarks

The member function effectively calls set::erase (STL/CLR)( set::begin (STL/CLR)(), set::end (STL/CLR)()). You use it to ensure that the controlled sequence is empty.

Example

// 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); 
    } 
 

 a b c
size() = 0
 a b
size() = 0

Requirements

Header: <cliext/set>

Namespace: cliext

See Also

Concepts

set (STL/CLR)

set::erase (STL/CLR)