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#include<iostream.h>
class base
{
public:out(){ cout<<"base"; }
};
class deri: public base
{
public: out(){ cout<<"deri";}
};
void main()
{
deri dp[3];
base *b=(base *)dp;
for(int i=0;i<3;i++)
 (b++)->out();
}

prog.cpp:1:21: error: iostream.h: No such file or directory
prog.cpp:4: error: ISO C++ forbids declaration of ‘out’ with no type
prog.cpp: In member function ‘int base::out()’:
prog.cpp:4: error: ‘cout’ was not declared in this scope
prog.cpp:4: warning: no return statement in function returning non-void
prog.cpp: At global scope:
prog.cpp:8: error: ISO C++ forbids declaration of ‘out’ with no type
prog.cpp: In member function ‘int deri::out()’:
prog.cpp:8: error: ‘cout’ was not declared in this scope
prog.cpp:8: warning: no return statement in function returning non-void
prog.cpp: At global scope:
prog.cpp:10: error: ‘::main’ must return ‘int’

Standard output is empty