A.6 User-Defined Data Types

C also allows you to create user-defined data types using structures and typedef. (For information about structures in C, see [ 6].) An example of a structured list definition is shown below.

typedef can only be used for compiled UDFs.

Example

 typedef struct list{int a;
                     real b;
                     int c;} mylist; /* mylist is type structure list 
 mylist x,y,z;                          x,y,z are type structure list */