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/************************************************************************
*
* Purpose: Program to demonstrate functions that have a variable
* number of parameters.
* Author: M J Leslie.
* Date: 28-Mar-94
*
************************************************************************/
#include <stdio.h>
#include <stdarg.h> /* va_list, va_arg, va_end */
int set(char *item, int num, ...); /* Declare the function. */
/************************************************************************/
main()
{
char *item="pear";
int Ret;
Ret = set (item,4, "apple", "pear", "banana", "grape");
if (Ret)
{
printf ("%s found\n", item);
}
else
{
printf("%s not found\n", item);
}
}
/************************************************************************/
int set(char *item, int num, ...)
{
va_list ap; /* define 'ap' It acts as a
* pointer to the undefined
* variables. */
int Ret=0;
int Inc=0; /* Assume the worst. */
va_start(ap, num); /* seed 'ap' */
do
{
if ( item == va_arg(ap, char *))
{
Ret = 1;
}
} while ( Ret==0 && ++Inc < num);
va_end(ap); /* tidy up. */
return (Ret);
}
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