Re: Is 'cout' a member of 'std'

[Marcus Lundblad <ml Update UU SE>]

You would need
#include <iostream>

otherwise cout (and cerr, cin) will be undefined.

//Marcus

On Thu, 29 Sep 2005 jalkadir gosonic ca wrote:

> When trying to compile the below program, I get a message saying that
> 'cout' is not a member of 'std', what the heck is that message for?!
>
> Is this a bug in g++
>
> SPECS -
> MSW-XP
> DEV-CPP - MINWING - GCC 3.3.x
>
> #include <gtkmm/button.h>
> #include <gtkmm/window.h>
> #include <gtkmm/main.h>
> #include <string>
>
> class HelloWorld : virtual public Gtk::Window{
>   public:
>      HelloWorld();
>      virtual ~HelloWorld();
>
>   protected:
>      //Signal handlers:
>      virtual void on_button_clicked();
>
>      //Member widgets:
>      Gtk::Button m_button;
> };
> // creates a new button with the label "Hello World".
> HelloWorld::HelloWorld() : m_button("Hello World"){
>
>  // Sets the border width of the window.
>  set_border_width(10);
>
>  // When the button receives the "clicked" signal, it will call the
>  // on_button_clicked() method. The on_button_clicked() method is defined
> below.
>  m_button.signal_clicked().connect(sigc::mem_fun(*this,
> &HelloWorld::on_button_clicked));
>
>  // This packs the button into the Window (a container).
>  add(m_button);
>
>  // The final step is to display this newly created widget...
>  m_button.show();
> }
>
> HelloWorld::~HelloWorld(){}
> /* ?????????????????????? HERE IS THE PROBLE ????????????????? */
> void HelloWorld::on_button_clicked(){
>   std::cout << "Hello World" << std::endl;
> }
>
> int main (int argc, char *argv[])
> {
>  Gtk::Main kit(argc, argv);
>
>  HelloWorld helloworld;
>  Gtk::Main::run(helloworld); //Shows the window and returns when it is
> closed.
>
>  return 0;
> }
> --
> * You cannot exercise your power to a point of humiliation.
>                               - Jean Chretien
>
> * It's amazing how the small seeds of distrust and misunderstanding  can
> yield a crop of hate and death...
>
> * If that document has fine printing anywhere, just chuck it in the garbage
>                              - Jorge Escalante
>
> Ma'assalama! Adiós!  bye!
>
> --
> * You cannot exercise your power to a point of humiliation.
>                               - Jean Chretien
>
> * It's amazing how the small seeds of distrust and misunderstanding  can
> yield a crop of hate and death...
>
> * If that document has fine printing anywhere, just chuck it in the garbage
>                              - Jorge Escalante
>
> Ma'assalama! Adiós!  bye!
>
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