add c version

c/fibonacci.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+ int fibonacci(int a, int b, int limit, void (*forEach)(int, int, int)) {
+	if (limit == 0)
+		return b;
+		
+	int c = a + b;
+	forEach(a, b, c);
+	return fibonacci(b, c, limit - 1, forEach);
+}
+
+void printIteration(int a, int b, int c) {
+	printf("%d + %d = %d\n", a, b, c);
+}
+
+int main(int argc, char** argv) {
+	int limit = 3;
+	if (argc > 1)
+		limit = atoi(argv[1]);
+	
+	int result = fibonacci(1, 1, limit, printIteration);
+	printf("Result: %d\n", result);
+	
+	return 0;
+}