Recently, I watch the YYJSON library source code. Here is one of the macro definitions.

#define YYJSON_TYPE_NONE        ((uint8_t)0)        /* _____000 */

why not just define this macro as follow ?

#define YYJSON_TYPE_NONE        0

I want to know the underlying reason for this

#define YYJSON_TYPE_NONE        ((uint8_t)0)        /* _____000 */