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  1.  
  2. #include <stdio.h>//エラーなし
  3.  
  4. struct xy {
  5.     int x;
  6.     int y;
  7. };
  8.  
  9. struct zw {
  10.     int z;
  11.     struct xy w;
  12. };
  13.  
  14. int main(void)
  15. {
  16.     struct zw a;
  17.     struct zw b = {10, {20, 30}};
  18.     struct zw c = {40, {50, 60}};
  19.  
  20.     a.z = b.z;
  21.     printf("a.z = %d\n", a.z);
  22.  
  23.     a.w.x = b.w.x;
  24.     printf("a.w.x = %d\n", a.w.x);
  25.  
  26.     a.w = b.w;
  27.     printf("a.w.y = %d\n", a.w.y);
  28.  
  29.     a = c;
  30.     printf("a.z = %d\n", a.z);
  31.     printf("a.w.x = %d\n", a.w.x);
  32.     printf("a.w.y = %d\n", a.w.y);
  33.  
  34.     return 0;
  35. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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a.z = 10
a.w.x = 20
a.w.y = 30
a.z = 40
a.w.x = 50
a.w.y = 60
https://ideone.com/90V4m8
language:
C (gcc 8.3)
created:
18 hours ago
visibility:
public

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