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  1. #include <stdio.h>
  2.  
  3. struct cache_line_aligned {
  4.   int version;
  5. //  char padding[60];
  6. } __attribute__ ((aligned (64)));
  7.  
  8. int main(void)
  9. {
  10.   struct cache_line_aligned s;
  11.   struct cache_line_aligned a[2];
  12.   printf("sizeof(struct cache_line_aligned) = %d\n", (int)sizeof(struct cache_line_aligned));
  13.   printf("sizeof(s) = %d\n", (int)sizeof(s));
  14.   printf("sizeof(a[0]) = %d\n", (int)sizeof(a[0]));
  15.   printf("sizeof(a) = %d\n", (int)sizeof(a));
  16.   return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 1676KB
comments (?)
stdin 
Standard input is empty
stdout 
sizeof(struct cache_line_aligned) = 64
sizeof(s) = 64
sizeof(a[0]) = 64
sizeof(a) = 128
https://ideone.com/E3Zgz
language:
C99 (gcc 8.3)
created:
12 years ago
visibility:
public

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