recursive factorial

Author: ivanbrennan

prog.8.16.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+int main (void)
+{
+	unsigned int		j;
+	unsigned long int	factorial (unsigned int n);
+
+	for ( j = 0; j < 11; ++j )
+		printf ("%2u! = %lu\n", j, factorial(j));
+
+	return 0;
+}
+
+// Recursive function to calculate the factorial of a positive integer
+unsigned long int factorial (unsigned int n)
+{
+	unsigned long int result;
+
+	if ( n == 0 )
+		result = 1;
+	else
+		result = n * factorial (n - 1);
+
+	return result;
+}