Denton Liu <liu.den...@gmail.com> writes:
> -#define THREAD_SHALLOW 1
> -#define THREAD_DEEP 2
> -static int thread;
> +enum thread_level {
> + THREAD_UNSET,
> + THREAD_SHALLOW,
> + THREAD_DEEP
> +};
> +static enum thread_level thread;
As the assignment of values do not change, this is a safe conversion
even if an existing code did things like
if (!thread)
... do this ...;
Hopefully nobody did arithmetic on it; thread_level may now become
unsigned depending on the compiler.
> -static int config_cover_letter;
> +static enum cover_setting config_cover_letter;
Likewise about the signedness.
