Structures, Unions, Enums Questions

• Is there easy way to print enumeration values symbolically?
• The elements of union are always accessed using & operator
• Is it necessary that the size of all elements in a union should be same?
• By default structure variable will be of auto storage class
• Will the following declaration work? typedef struct s { int a; float b; }s;
• Will the following code work? #include<stdio.h> #include<malloc.h> struct emp { int len; char name[1]; }; int main() { char newname[] = "Rahul"; struct emp *p = (struct emp *) malloc(sizeof(struct emp) -1 + strlen(newname)+1); p->len = strlen(newname); strcpy(p -> name, newname); printf("%d %s\n", p->len, p->name); return 0; }
• A pointer union CANNOT be created