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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. 	unsigned char *d = &c - 1;
  9.  
  10.  
  11.         printf( "d: %hhX\nc: %p\nb: %p\na: %p\n", 
  12. 		d, 
  13.                 (void *)&c, 
  14.                 (void *)&b, 
  15.                 (void *)&a );
  16. }
  17.  
  18.  
  19.  
  20. int main(void)
  21. {
  22.         foo( 1, 2, 3, 4 );
  23.  
  24.  
  25.         return 0;
  26. }
  27.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
cc1: warnings being treated as errors
prog.c: In function ‘foo’:
prog.c:15: error: format ‘%hhX’ expects type ‘int’, but argument 2 has type ‘unsigned char *’
stdout
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Standard output is empty
https://ideone.com/XOfTa
language:
C99 (gcc 8.3)
created:
14 years ago
visibility:
public

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