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title deque::clear (STL/CLR) | Microsoft Docs
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ms.date 11/04/2016
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C++
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clear member [STL/CLR]
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deque::clear (STL/CLR)

Removes all elements.

Syntax

void clear();

Remarks

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

Example

// cliext_deque_clear.cpp   
// compile with: /clr   
#include <cliext/deque>   
  
int main()   
    {   
    cliext::deque<wchar_t> c1;   
    c1.push_back(L'a');   
    c1.push_back(L'b');   
    c1.push_back(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.push_back(L'a');   
    c1.push_back(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/deque>

Namespace: cliext

See Also

deque (STL/CLR)
deque::erase (STL/CLR)