Are anonymous unions and structs within a struct permissible ?

[pereges]

eg.

typedef struct
{
int a;
float b;
union
{
struct
{
int c;
int d;
};

struct
{
double e;
double f;
}
}
} XYZ;

 

[Ian Collins]

pereges wrote:

Please put your question in the body of your post.

"Are anonymous unions and structs within a struct permissible ?"

No, not in standard C.

They may be offered as an extension by some compilers.