queue::front (STL/CLR)

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at queue::front (STL/CLR).

Accesses the first element.

Syntax

reference front();  

Remarks

The member function returns a reference to the first element of the controlled sequence, which must be non-empty. You use it to access the first element, when you know it exists.

Example

// cliext_queue_front.cpp   
// compile with: /clr   
#include <cliext/queue>   
  
typedef cliext::queue<wchar_t> Myqueue;   
int main()   
    {   
    Myqueue 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();   
  
// inspect first item   
    System::Console::WriteLine("front() = {0}", c1.front());   
  
// alter first item and reinspect   
    c1.front() = L'x';   
    for each (wchar_t elem in c1.get_container())   
        System::Console::Write(" {0}", elem);   
    System::Console::WriteLine();   
    return (0);   
    }  
  

 a b c  
front
() = a  
 x b c  

Requirements

Header: <cliext/queue>

Namespace: cliext

See Also

queue (STL/CLR)
queue::back (STL/CLR)
queue::back_item (STL/CLR)
queue::front_item (STL/CLR)