va_list
va_list
/* unspecified */ va_list; |
va_list
is a complete object type suitable for holding the information needed by the macros va_start
, va_copy
, va_arg
, and va_end
.
If a va_list
instance is created, passed to another function, and used via va_arg
in that function, then any subsequent use in the calling function should be preceded by a call to va_end
.
It is legal to pass a pointer to a va_list
object to another function and then use that object after the function returns.
References
- C11 standard (ISO/IEC 9899:2011):
- 7.16/3 Variable arguments <stdarg.h>