1 files changed, 56 insertions, 0 deletions
diff --git a/reference/C/EXAMPLES/var_func.c b/reference/C/EXAMPLES/var_func.c
new file mode 100644
index 0000000..4784d92
--- /dev/null
+++ b/reference/C/EXAMPLES/var_func.c
@@ -0,0 +1,56 @@
+/************************************************************************
+ *
+ * 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);
+}