Typedef in C++

The typedef-names are aliases for existing types, and are not declarations of new types. Typedef cannot be used to change the meaning of an existing type name (including a typedef-name). Once declared, a typedef-name may only be redeclared to refer to the same type again. Typedef names are only in effect in the scope where they are visible: different functions or class declarations may define identically-named types with different meaning..

#include<iostream.h>

#include<conio.h>

typedef int usman;

typedef char name[10];

typedef struct fatima{

usman ID;

name nam;

}obj;

obj fatima1;

obj fatima2;

usman func1(usman b,usman b1)

{

name result="\nSum is= ";

usman sum;

sum=b+b1;

cout<<result<<sum;

return 0;

}

usman main(){

clrscr();

cout<<"\n Enter Two No: ";

cin>>fatima1.ID;

cin>>fatima2.ID;

cout<<"\n Enter Two Name: ";

cin>>fatima1.nam;

cin>>fatima2.nam;

cout<<"\n"<<fatima1.nam<<" "<<fatima2.nam<<"\n";

func1(fatima1.ID,fatima2.ID);

getch();

return 0;

}

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