root/include/stdarg.h

/* */

INCLUDED FROM

   1 #ifndef _STDARG_H
   2 #define _STDARG_H
   3 
   4 typedef char *va_list;
   5 
   6 /* Amount of space required in an argument list for an arg of type TYPE.
   7    TYPE may alternatively be an expression whose type is used.  */
   8 
   9 #define __va_rounded_size(TYPE)  \
  10   (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
  11 
  12 #ifndef __sparc__
  13 #define va_start(AP, LASTARG)                                           \
  14  (AP = ((char *) &(LASTARG) + __va_rounded_size (LASTARG)))
  15 #else
  16 #define va_start(AP, LASTARG)                                           \
  17  (__builtin_saveregs (),                                                \
  18   AP = ((char *) &(LASTARG) + __va_rounded_size (LASTARG)))
  19 #endif
  20 
  21 void va_end (va_list);          /* Defined in gnulib */
  22 #define va_end(AP)
  23 
  24 #define va_arg(AP, TYPE)                                                \
  25  (AP += __va_rounded_size (TYPE),                                       \
  26   *((TYPE *) (AP - __va_rounded_size (TYPE))))
  27 
  28 #endif /* _STDARG_H */

/* */