fork download
copy 
  1. #include <stdio.h>
  2. #include <stdarg.h>
  3.  
  4. void foo( unsigned char a, 
  5. 	  unsigned char b, 
  6. 	  unsigned char c, 
  7. 	  ...  )
  8. {
  9. 	va_list ap;
  10. 	unsigned char d;
  11. 	/*unsigned char *d = &a - 4;
  12.  
  13.         printf( "c: %p\nb: %p\na: %p\n", 
  14.                 (void *)&c, 
  15.                 (void *)&b, 
  16.                 (void *)&a );
  17.         printf( "d: %hhu\n", 
  18. 		*d );*/
  19.  
  20. 	va_start( ap, c );
  21. 	d = va_arg( ap, unsigned int);
  22. 	va_end( ap );
  23. 	printf( "%hhu\n", d );
  24. }
  25.  
  26.  
  27.  
  28. int main(void)
  29. {
  30.         foo( 1, 2, 3, 4 );
  31.  
  32.  
  33.         return 0;
  34. }
  35.  
Success #stdin #stdout 0.02s 1720KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
4
https://ideone.com/BN95D
language:
C99 (gcc 8.3)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!