- #include <stdio.h> 
-   
- typedef struct { 
-     const int x; 
-     const int y; 
- } my_struct; 
-   
- enum { 
-     a = 8, 
-     b = 12,  
- }; 
-   
- my_struct test = { a, b }; 
- my_struct test1 = { a+1, b }; 
- my_struct test2 = { a, 'H' }; 
-   
- // Also the sizeof operator can produce compile-time constants: 
-   
- my_struct test3 = { sizeof(my_struct), b }; 
-   
- int main(void) { 
- 	printf("%cello, world!\n",-  test2. y);
 
- 	return 0; 
- } 
-   
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