I'm working through Kochan's "Programming in C", and in the section on enumerated data types it says that the "C compiler actually treats enumeration identifiers as integer constrants", which I thought made sense until I went to compile the example program:

`#include <stdio.h>

int main (void)

{

enum month { january = 1, february, march, april, may, june, july, august, september, october, november, december };

enum month a_month;

int days;

printf ("Enter month number: ");

scanf ("%i", &a_month);

...`

GCC gave me the following error:

14.1.c: In function ‘main’:

14.1.c:13:18: warning: format ‘%i’ expects argument of type ‘int *’, but argument 2 has type ‘enum month *’ [-Wformat=]

13 | scanf ("%i", &a_month);

| ~^ ~~~~~~~~

| | |

| | enum month *

| int *

This is how it's written in the book and it makes sense to me that this should work, what am I not understanding?