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  1. #include <stdio.h>
  2.  
  3. void foo( unsigned char a, 
  4. 	  unsigned char b, 
  5. 	  unsigned char c, 
  6. 	  ...  )
  7. {
  8.         printf( "a: %p\nb: %p\nc: %p\n", 
  9.                 (void *)&a, 
  10.                 (void *)&b, 
  11.                 (void *)&c );
  12.  
  13.         printf( "d1: %hhu\n", *(&c - 8) );
  14.         printf( "d2: %hhu\n", *(&c - 4) );
  15.         printf( "d3: %hhu\n", *(&c + 0) );
  16.         printf( "d4: %hhu\n", *(&c + 4) );
  17.         printf( "d5: %hhu\n", *(&c + 8) );
  18.  
  19.  
  20. }
  21.  
  22.  
  23.  
  24. int main(void)
  25. {
  26.         foo( 1, 2, 3, 4 );
  27.  
  28.  
  29.         return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 1720KB
comments (?)
stdin 
Standard input is empty
stdout 
a: 0xbf9e5ee8
b: 0xbf9e5ee4
c: 0xbf9e5ee0
d1: 228
d2: 224
d3: 3
d4: 2
d5: 1
https://ideone.com/msLn2
language:
C99 (gcc 8.3)
created:
14 years ago
visibility:
public

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