c++ - Two objects in namespace to be default initialized by different functions and used by class within namespace -

i have strange request. have namespace foo 2 declared objects of type bar, namely bar1 , bar2, initialize via constructor of class bar. sound way so:

namespace foo {     class bar;     foo::bar *bar1;     foo::bar *bar2; }  class foo::bar {     /* initialize bar1 , bar2 in constructor.      */     initializebar(); }; 

the reason behind shenanigan create object similar cout , cin such foo::bar1 , foo::bar2 need not defined user. more specifically, using ncurses , wish replace cout output window bar1 , cin input window bar2 , overload operators , such foo::bar1 << prints in output window see fit , foo::bar2 >> b extracts values input window , dumps b. able via c functions call need extend c++. perhaps default initialization of bar1 , bar2 accordingly?

one way use simple function pattern. keep constructor private , clients can access these objects via 2 functions. want disable copy constructor , copy assignment operator well.

// .h namespace foo {    class bar: boost noncopyable    {    public:       static bar* getinputwindow()       {          static bar s_input;          return &s_input;       }       static bar* getoutputwindow()       {          static bar s_output;          return &s_output;       }     private:       bar()       {       }    };     // global/namespace objects clients should directly use    extern bar *input;    extern bar *output; }  // .cpp namespace foo {    bar *input = bar::getinputwindow();    bar *output = bar::getoutputwindow(); }