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  1. #include <stdio.h>
  2. #include <stdint.h>
  3. #include <stddef.h>
  4.  
  5. typedef struct {
  6. 	uint8_t f1;
  7. 	uint32_t f2;
  8. 	uint16_t f3;
  9. } example_TypeDef;
  10.  
  11. void print_st(example_TypeDef *st) {
  12. 	printf("%hhu %hu %u \n", st->f1, st->f2, st->f3);
  13. }
  14.  
  15. int main(void) {
  16. 	example_TypeDef a;
  17. 	example_TypeDef b;
  18. 	uint8_t *a_mem;
  19. 	uint8_t *b_mem;
  20.  
  21. 	a.f1 = 11;
  22. 	a.f2 = 22;
  23. 	a.f3 = 44;
  24.  
  25. 	b.f1 = 55;
  26. 	b.f2 = 66;
  27. 	b.f3 = 77;
  28.  
  29. 	printf("sizeof: %ld\n", sizeof(example_TypeDef));
  30. 	printf("a = "); print_st(&a);
  31. 	printf("b = "); print_st(&b);
  32.  
  33. 	printf("copy b <- a\n");
  34. 	a_mem = (uint8_t *)(&a);
  35. 	b_mem = (uint8_t *)(&b);
  36. 	for (int i = 0; i < sizeof(example_TypeDef); i++) {
  37. 		b_mem[i] = a_mem[i];
  38. 	}
  39. 	printf("a = "); print_st(&a);
  40. 	printf("b = "); print_st(&b);
  41.  
  42. 	return 0;
  43. }
  44.  
Success #stdin #stdout 0s 4952KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
sizeof: 12
a = 11 22 44 
b = 55 66 77 
copy b <- a
a = 11 22 44 
b = 11 22 44
https://ideone.com/gcsnfT
language:
C (gcc 8.3)
created:
3 years ago
visibility:
public

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