Programming and Data Structures by Pearson

Structure and Union 393

1Z8 typedef

By using typedef we can create new data type. The statement typedef is to be used while defining

the new data type. The syntax is as given under.

ty p e d ef type dataname;

Here, type is the data type and dataname is the user defined name for that type,

typedef in t hours;

Here, hours is another name for int and now we can use hours instead of int in the program as

follows.

hours hrs;

Examples based on the above are illustrated as under.

12.16 Write a program to create user-defined data type hours on int data type and use it in

the program.

td e fin e H 60

m ain()

{

ty p ed ef in t hours;

hours