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/************************************************************************
*
* Purpose: Passing a copy of a structure to a function.
* Author: M.J. Leslie
* Date: 13-Jun-94
*
************************************************************************/
#include <stdio.h>
/* Declare a structure. It MUST
* be declared before its use in
* function declarations.
*/
struct record_format { char name[20]; int age;};
void display(struct record_format); /* function declaration */
/************************************************************************/
main ()
{
struct record_format record;
strcpy(record.name, "Joe Brown");
record.age = 21;
display (record);
/*
* Print the contents of the structure.
* The original value of record.age has been
* retained.
*/
printf("name is %s \nage is %d \n", record.name, record.age);
}
/************************************************************************/
void display(struct record_format rec)
{
printf("name is %s \nage is %d \n", rec.name, rec.age);
rec.age=31; /* change the value of a structure
* member. */
}
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