Is there any special significance to defining constant data inside a structure as shown. This is from a 3rd party library.
typedef struct
{
IntVB abc_number;
#define ABC_A 0x01
#define ADBC_E 0x02
IntVB asset;
} StructA;
Not really. They probably provide better significance to the programmer in that spot of the code.
Meaning that those constants are probably related to the items in that struct container, or to the behavior of the struct.